APLEX SC-170DD Triplex Plunger Pump: Technical Analysis and Application Prospects
Performance Data and Curves
Rated Power (HP/kW):
Maximum rated power: 230 hp (171.4 kW).
Maximum input power at rated speed: 230 HP @ 450 RPM.
Importance: This defines the upper power limit that the pump design can withstand, which is crucial for selecting an appropriate drive unit (motor or engine).
Rated and Maximum Speed (SPM/RPM):
Maximum rated speed: 450 RPM.
Normal continuous operating speed range: 100 to 350 RPM.
Minimum speed: 100 RPM.
Importance: Speed directly affects flow rate and wear. Operating within the recommended speed range helps ensure pump performance and service life.
Table 1: APLEX SC-170DD Performance Data - Imperial Units
|
Piston Size (inches) |
Displacement per Revolution (gallons) |
Flow at 250 RPM (GPM) |
Flow at 300 RPM (GPM) |
Flow at 350 RPM (GPM) |
Flow at 400 RPM (GPM) |
Flow at 450 RPM (GPM) |
Required Power at 450 RPM (HP)** |
|
4.500 |
0.8778 |
219.4 |
263.3 |
307.2 |
351.1 |
395.0 |
128.0 |
|
4.250 |
0.7830 |
195.7 |
234.9 |
274.0 |
313.2 |
352.3 |
175.0 |
|
4.000 |
0.6936 |
173.4 |
208.0 |
242.7 |
277.4 |
312.1 |
179.2 |
Metric Units
|
Piston Size (mm) |
Displacement per Revolution (liters) |
Flow at 250 RPM (LPM) |
Flow at 300 RPM (LPM) |
Flow at 350 RPM (LPM) |
Flow at 400 RPM (LPM) |
Flow at 450 RPM (LPM) |
Required Power at 450 RPM (kW)** |
|
114.3 |
3.32 |
830.5 |
996.6 |
1162.8 |
1329.0 |
1495.2 |
95.4 |
|
107.9 |
2.96 |
740.8 |
889.1 |
1037.2 |
1185.5 |
1333.6 |
130.4 |
|
101.6 |
2.62 |
656.3 |
787.3 |
918.7 |
1050.0 |
1181.4 |
133.6 |
Note: *Displacement is based on 100% volumetric efficiency. **Power is based on 90% mechanical efficiency.
C. Port Specifications
Suction Port (SC-170DD):
Size and Type: 5" ANSI 150 FF (Both Sides) or 3" ANSI 300# RTJ.
Pressure Rating: Determined by flange type (ANSI 150# or 300#).
Discharge Port (SC-170DD):
Size and Type: 2-1/2" ANSI 900 LF (Both Sides) or 2" API 5000.
Pressure Rating: Determined by flange type (ANSI 900# or API 5000 psi).
The high-pressure discharge ports (ANSI 900#, API 5000) are consistent with the pump's pressure capability. API flanges are common in the oil and gas industry.
D. Physical Characteristics
Overall Dimensions (L x W x H) for SC-170DD:
Length: 79-1/4 inches, Width: 63-1/2 inches, Height: Approximately 62-3/8 inches.
Overall Pump Weight (lbs/kg) - SC-170DD:
2325 lbs (approximately 1054.6 kg).
Fluid End Design and Construction: APLEX SC-170DD
Table 2: APLEX SC-170DD Fluid End Components, Materials, and Manufacturing Highlights
|
Component |
Material/Part Number (SC-170DD Specific) |
Key Design/Manufacturing Feature |
Main Advantage |
|
Fluid Cylinder |
Ductile Iron (ASTM A536 80-55-06) |
Precision casting and machining |
Robust structure, strong pressure bearing capacity |
|
Valve Assembly |
Abrasion-Resistant (AR); Valve Spring: Inconel®; Valve Cover: Stainless Steel (7204-1234-00B); Valve Seat Flow Area: 5.15 sq. in. (AR valve disc/seat material may be 17-4PH SS, refer to other Aplex AR valves) |
AR design optimizes wear resistance; Inconel® springs resist corrosion and high temperatures |
Extends valve life, adapts to fluids containing abrasive particles |
|
Piston Assembly |
Piston Cups: Polyurethane, Nitrile Rubber, HSN, Kevlar®; Piston Assembly (Black): 4" (7204-1146-00K), 4-1/4" (7204-1057-00K); 4-1/2" Piston Cup Assembly (7201-0731-00K) |
Multiple piston cup materials available; Kevlar® enhances wear resistance |
Adapts to different fluids, improves wear resistance |
|
Cylinder Liner |
4": High-Chrome Cast Iron (7204-1106-00K); 4-1/4": White Ceramic (7204-1265-00K); Optional hardened chrome liner |
High-hardness wear-resistant material; Precision honed internal bore |
Excellent wear and corrosion resistance, extended service life |
|
Seals/Gaskets |
Valve Cover/Cylinder Head Seal: PTFE coated (general description); Stuffing Box Seal: Nitrile Rubber (7204-0054-00A); Liner Gasket: (316-049042-508) (may be Nitrile Rubber or Polyurethane) |
Selection of appropriate sealing materials based on application |
Ensures reliable sealing under high pressure |
Power End Design and Construction: APLEX SC-170DD
Table 3: APLEX SC-170DD Power End Components, Materials, and Design Features
|
Component |
Material/Grade (SC-170DD Specific) |
Key Design/Manufacturing Feature |
Main Advantage |
|
Power Frame |
One-piece Cast Iron |
Robust enclosed design, large oil sump (18 quarts) |
Provides structural rigidity, protects internal components, good heat dissipation |
|
Crankshaft |
Forged Steel, Nitrided; Drive end diameter 3.750/3.749", main bearing diameter 4", crankpin diameter x length 4"x3" |
Forging enhances strength, nitriding increases surface hardness |
High strength, wear resistance, long life |
|
Connecting Rod |
Automotive-grade Ductile Iron |
Split big end design |
Reliable power transmission, easy assembly |
|
Crosshead |
Full Cylindrical Cast Iron; Diameter x Length: 5-3/4" x 6-3/16" |
Large contact area, good guiding properties |
Reduces piston rod side forces, smooth operation |
|
Crosshead Pin |
AISI 8620 Steel, Case-Hardened and Ground |
High surface hardness and precision |
Wear-resistant, reliable connection |
|
Wrist Pin Bushing |
SAE 660 Bronze; Diameter x Width: 2" x 3" |
Excellent bearing material |
Low friction, high load capacity |
|
Main Bearing |
Timken® Tapered Roller Bearings |
L10 life >45,000 hours |
High load capacity, long life, high reliability |
|
Crankpin Bearing |
Precision Automotive-grade, Steel-backed Babbitt-lined |
Good embeddability and conformability |
Protects crankshaft, smooth operation |
|
Lubrication System |
Pressure Lubrication |
Forced lubrication of all critical moving parts |
Provides reliable lubrication under various conditions, extends component life |
|
Recommended Lubricant |
S.A.E. 40 wt. Non-detergent Industrial or Turbine Oil |
Features anti-foam and good water separation properties |
Protects moving parts, prevents corrosion and premature wear |
Key Wear Parts List
Table 4: APLEX SC-170DD Key Wear Parts and Recommended Accessories
|
Component Category |
Specific Part Name/Type |
Aplex Part Number (if any) |
Material/Specification Highlights |
Standard/Optional |
|
Fluid End |
|
|
|
|
|
|
Piston Assembly (4", 4-1/4", 4-1/2") |
7204-1146-00K (4"), 7204-1057-00K (4-1/4"), 7201-0731-00K (4-1/2" Cup) |
Piston Cup Materials: Polyurethane, Nitrile Rubber, HSN, Kevlar® |
Standard |
|
|
Liner (4", 4-1/4", 4-1/2") |
7204-1106-00K (4" High-Chrome Cast Iron), 7204-1265-00K (4-1/4" Ceramic); Optional hardened chrome |
High-Chrome Cast Iron, Ceramic, Hardened Chrome |
Standard/Optional |
|
|
Valve Assembly (Abrasion-Resistant Type) |
Suction Valve: 303123, Discharge Valve: 303124 (Buckhorn Pumps); Spring: Inconel® |
Valve Disc/Seat may be 17-4PH SS (refer to other Aplex AR valves) |
Standard |
|
|
Stuffing Box Seal/Piston Rod Seal |
Stuffing Box Seal: 7204-0054-00A (Nitrile Rubber); Wiper Ring Seal: 145-200236-503, 145-200212-503 |
Nitrile Rubber, PTFE Coated (General) |
Standard |
|
|
Gasket/O-ring |
Liner Gasket: 316-049042-508; Valve Cover O-ring: 110-000252-201 |
Typically Nitrile Rubber or PTFE |
Standard |
|
Power End |
|
|
|
|
|
|
Main Bearing |
Timken® Tapered Roller Bearing (Inner Race: 203-168000-999, Outer Race: 202-458000-999) |
L10 life >45,000 hours |
Standard |
|
|
Crankpin Bearing |
Steel-backed Babbitt-lined (Bearing Pair: 7204-0073-10K) |
Precision Automotive Grade |
Standard |
|
|
Connecting Rod |
7204-0311-00D |
Automotive-grade Ductile Iron |
Standard |
|
|
Crosshead |
7204-0309-00C |
Full Cylindrical Cast Iron |
Standard |
|
General Accessories |
|
|
|
|
|
|
Pressure Regulator |
No specific model recommended; must be selected to match pump performance (up to 395 GPM, 1136 PSI) |
Industrial grade, high flow, high pressure (e.g., Crosby OMNI-TRIM type) |
Optional |
|
|
Safety Relief Valve |
No specific model recommended; must be selected to match pump performance and discharge requirements |
Industrial grade, discharge capacity must be greater than pump output (e.g., Crosby or Farris types) |
Required |
|
|
Pulsation Dampener |
No specific model recommended; must be selected based on system and pump parameters |
Large volume, suitable for high flow (refer to selection guide) |
Optional |
|
|
Drive Unit |
Motor or Engine |
Must provide 230 HP @ 450 RPM; may require external reduction gear |
Required |
APLEX SC-170DD Applications, Market Positioning, and Competitive Advantages
A. Typical Application Areas and Target Industries
Horizontal Directional Drilling (HDD):
- The SC-170DD is explicitly linked to Vermeer 100x140 HDD drills. The Vermeer D100x140 S3 drill offers the Aplex pump option, with performance parameters (230 GPM / 1000 PSI) that align with the SC-170DD's capabilities.
- This direct association with a major HDD drill manufacturer is strong proof of its primary target market and application area. HDD operations require robust pumps for circulating drilling mud.
- Oil & Gas:
- The Aplex product line originated in the oilfield pump industry. SC Series pumps are widely used in the oil and gas sector.
- Specific applications include crude oil gathering/transfer, natural gas desulfurization/drying, natural gas liquids (NGL) transfer, hydraulic fracturing, etc.
- Optional API 674 compliance makes it suitable for demanding oil and gas process flows.
- The pump's specifications (pressure, flow, material options) and API 674 option make it well-suited for various upstream and midstream oil and gas fluid handling tasks.
- Industrial Cleaning:
- High-pressure hydro-blasting and cutting are typical applications for Aplex pumps. The SC-170DD's pressure/flow capability allows it to handle large-scale industrial cleaning tasks.
- The pump can generate sufficient hydraulic power for demanding cleaning operations.
- Mining:
- Mine dewatering is one of its application areas.
- Robust construction and the ability to handle certain solid particles (with appropriate fluid end configuration) would be advantageous.
- Other Potential Industries: Based on the broad application areas of Aplex pumps: water treatment, steel mills (descaling), hydrostatic testing, reverse osmosis, chemical processes, etc.
- The versatility in materials and performance provides it with a wide range of applications.
Hot Tags: aplex sc-170dd hdd pump, China aplex sc-170dd hdd pump manufacturers, suppliers, factory
|
Product Name |
Economy Series Hardened Chrome Cylinder/Liner 4.00 Inch for APLEX SC-170L/SC-170DD |
|
|
Brand |
- |
|
|
SKU |
303009 |
|
|
Weight |
18.60 LBS 11.16 kg |
|
|
Width |
6.50 in 16.5 cm |
|
|
Height |
6.50 in 16.5 cm |
|
|
Depth |
8.00 in 20.3 cm |
|
|
Shipping |
Calculated at Checkout |
|
|
Product Description |
Aplex SC-170L/SC-170DD 4.00" Economy Hardened Chrome Liner SKU: 303009 This 4.00 Inch ID Economy Hardened Chrome Liner is a cost-effective wear solution for the Aplex SC-170L/SC-170DD mud pump. It features a bi-metal construction: a high-strength forged steel outer hull for structural integrity and an inner sleeve made from Hard Chrome Cast Iron Alloy (min. 27% Chrome content). The inner sleeve is hardened to HRC 60-65 and precision ground, offering excellent wear and erosion resistance. This is an economical wear part for ensuring reliable operation under high-flow and abrasive fluid conditions. |
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||
|
Product Name |
SKU - MK-ARS-10 SPRING FOR 170DD VALVES |
|
|
Brand |
- |
|
|
SKU |
MK-ARS-10 |
|
|
Weight |
0.30 LBS 0.18kg |
|
|
Width |
- |
|
|
Height |
- |
|
|
Depth |
- |
|
|
Shipping |
Calculated at Checkout |
|
|
Product Description |
Aplex SC-170DD Valve Spring SKU: MK-ARS-10 This Valve Spring is a critical resilient element in the valve assembly of Aplex SC-170DD mud pumps. It is precision-wound from high-strength, highly corrosion-resistant Inconel® (Nickel-Chromium Alloy) or specialized stainless steel. The spring is designed to provide precise preload and fast response, ensuring the valve disc seats quickly and accurately after every stroke to maintain pump volumetric efficiency and prevent fluid backflow. It is essential for guaranteeing long-term stability under high-pressure and high-frequency operation in HDD service. |
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|
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||
|
Product Name |
SKU - 303232 VALVE BODY & INSERT FOR SC-170DD |
|
|
Brand |
- |
|
|
SKU |
303232 |
|
|
Weight |
2.00 LBS 1.2kg |
|
|
Width |
- |
|
|
Height |
- |
|
|
Depth |
- |
|
|
Shipping |
Calculated at Checkout |
|
|
Product Description |
Aplex SC-170DD Valve Body & Insert Assembly SKU: 303232 This Valve Body & Insert Assembly is a core component of the Aplex SC-170DD mud pump's abrasive-resistant valve system. The valve body is typically precision-machined from Hardened Alloy Steel or Stainless Steel, offering high strength and corrosion resistance. The insert/disc is made from a highly wear-resistant polymer (like Polyurethane or Delrin®) or hardened stainless steel to withstand abrasive fluids. This assembly is critical for ensuring precise fluid control and ultra-long service life in HDD and other high-flow abrasive applications. |
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|
||
|
Product Name |
Crankshaft Kit - PE304KB |
|
|
Brand |
- |
|
|
SKU |
PE304KB |
|
|
Weight |
356.00 lbs 213.6kg |
|
|
Width |
- |
|
|
Height |
- |
|
|
Depth |
- |
|
|
Shipping |
Calculated at Checkout |
|
|
Product Description |
Aplex SC-170L Crankshaft Rebuild Kit SKU: PE304KB This PE304KB Crankshaft Rebuild Kit is a complete mechanical overhaul solution for the power end of Aplex SC-170L/SC-170DD series pumps. The kit includes the Alloy Steel precision forged crankshaft, main/rod bearings, connecting rod assemblies, and all associated moving parts. The crankshaft is heat-treated for high hardness and excellent fatigue resistance. This kit is the essential major overhaul solution for achieving maximum mechanical efficiency, ultra-long durability, and minimal downtime during HDD and high-power operation. |
|
|
|
||
|
Product Name |
Pin Wrist |
|
|
Brand |
- |
|
|
SKU |
7206-0005-00A |
|
|
Weight |
0.47 lbs 0.28kg |
|
|
Width |
- |
|
|
Height |
- |
|
|
Depth |
- |
|
|
Shipping |
Calculated at Checkout |
|
|
Product Description |
Aplex SC-45L Wrist Pin (Crosshead Pin) SKU: 7206-0005-00A This Wrist Pin is a critical moving component in the power end of Aplex SC-45L series pumps. It is precision-machined from high-strength Alloy Steel and treated with a Case-Hardening and High-Precision Grinding process. The pin surface achieves extreme hardness and a mirror finish, allowing it to withstand high-frequency impact and shear loads while minimizing friction against the connecting rod bushings. It is essential for guaranteeing smooth, accurate alignment of the piston's reciprocation and extended mechanical life for the pump. |
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||
|
Product Name |
Valve Puller Assembly for AR9.5 - FAR9 |
|
|
Brand |
- |
|
|
SKU |
0039-AR-PA18-95 |
|
|
Weight |
42.80 LBS 25.68kg |
|
|
Width |
7.50 (in) 19.1cm |
|
|
Height |
7.50 (in) 19.1cm |
|
|
Depth |
24.50 (in) 62.2cm |
|
|
Shipping |
Calculated at Checkout |
|
|
Product Description |
AR9.5/FAR9 Valve Puller Assembly SKU: 0039-AR-PA18-95 This Valve Puller Assembly is a specialized maintenance tool designed for high-pressure AR9.5/FAR9 mud pumps. Critical components, such as the strongback and all-thread rod, are precision-machined from high-strength Alloy Steel. The puller applies massive axial force (mechanically or hydraulically) to safely and non-destructively extract tightly seated valve seats and cage assemblies from the fluid end manifold. It is an essential professional tool for ensuring fast, safe service and extending the lifespan of the fluid end. |
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Product Name |
303028 PISTON ASSEMBLY; 4.00 INCH X 1.00 INCH BORE, SERIES K |
|
|
Brand |
- |
|
|
SKU |
303028 |
|
|
Weight |
6.80 LBS 4.08kg |
|
|
Width |
6.00 in 15.2cm |
|
|
Height |
5.00 in 12.7cm |
|
|
Depth |
3.00 in 7.6cm |
|
|
Shipping |
Calculated at Checkout |
|
|
Product Description |
Aplex SC-170DD Series K 4.00" Piston Assembly SKU: 303028 This 4.00 Inch ID Series K Piston Assembly is a critical wear part for the Aplex SC-170DD mud pump. The piston seal (cup) is typically precision-molded from a composite of Nitrile Rubber (NBR) or HNBR and High-Strength Synthetic Fabric. The complete assembly includes the hub, seal, and retainer, ensuring a tight self-sealing fit against the liner under high fluid pressure. It is the core sealing component for guaranteeing high volumetric efficiency and long service life during HDD high-flow and high-pressure operation. |
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|
||
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Product Name |
REPLACEMENT RUBBER, 4 INCH, SERIES K |
|
|
Brand |
- |
|
|
SKU |
303029 |
|
|
Weight |
1.08 LBS 0.65kg |
|
|
Width |
6.00 in 15.2cm |
|
|
Height |
5.00 in 12.7cm |
|
|
Depth |
3.00 in 7.6cm |
|
|
Shipping |
Calculated at Checkout |
|
|
Product Description |
Aplex Series K 4 Inch Replacement Piston Rubber SKU: 303029 This 4 Inch Series K Piston Replacement Rubber is the core sealing wear part for the piston assembly of Aplex SC-170 series pumps. It is precision-molded from a composite of wear-resistant Nitrile Rubber (NBR) or High-Strength Synthetic Rubber, engineered to withstand abrasive fluids. This seal delivers a reliable self-sealing fit under high pressure, minimizing friction and wear against the cylinder liner, and resisting abrasive erosion. It is critical for guaranteeing high volumetric efficiency and extended liner life during HDD high-flow, high-pressure operation. |
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|
|
||
|
Product Name |
VALVE ASSEMBLY; AR, DISCHARGE, SC-170DD |
|
|
Brand |
- |
|
|
SKU |
303124 |
|
|
Weight |
9.20 LBS 5.52 kg |
|
|
Width |
6.75 in 17.1 cm |
|
|
Height |
6.00 in 15.2 cm |
|
|
Depth |
5.25 in 13.3 cm |
|
|
Shipping |
Calculated at Checkout |
|
|
Product Description |
Aplex SC-170DD Abrasive Service Discharge Valve Assembly SKU: 303124 This Abrasive Resistant (AR) Discharge Valve Assembly is a core, pre-assembled component for the fluid end of Aplex SC-170DD series mud pumps. The valve components (disc, seat) are precision-machined from high-hardness 17-4PH Stainless Steel or Titanium Alloy, providing exceptional abrasive wash resistance and high-strength characteristics. The assembly ensures precise unidirectional discharge of fluid under high pressure, minimizing leakage and wear. This is a critical flow control module for guaranteeing ultra-long service life and high-efficiency operation under HDD and other high-flow abrasive conditions. |
|
|
|
||
|
Product Name |
VALVE ASSEMBLY; AR, SUCTION, SC-170DD |
|
|
Brand |
- |
|
|
SKU |
303123 |
|
|
Weight |
8.60 LBS 5.16 kg |
|
|
Width |
6.75 in 17.1 cm |
|
|
Height |
6.00 in 15.2 cm |
|
|
Depth |
5.25 in 13.3 cm |
|
|
Shipping |
Calculated at Checkout |
|
|
Product Description |
Aplex SC-170DD Abrasive Service Suction Valve Assembly SKU: 303123 This Abrasive Resistant (AR) Suction Valve Assembly is a core component for fluid intake in the fluid end of Aplex SC-170DD series mud pumps. The valve components (disc, seat) are precision-machined from high-hardness 17-4PH Stainless Steel or specially heat-treated alloy steel, providing exceptional abrasive wash resistance and high-strength characteristics. The assembly ensures fast, accurate opening and closing of the valve during the suction stroke, effectively preventing fluid backflow and cavitation. This is a critical fluid control module for guaranteeing sustained high volumetric efficiency and ultra-long service life under HDD and other high-flow abrasive conditions. |
|
|
|
||
|
Product Name |
Piston Assembly Bonded for APLEX SC-170L/SC-170DD |
|
|
Brand |
- |
|
|
SKU |
303010 |
|
|
Weight |
4.88 LBS 2.93 kg |
|
|
Width |
5.00 (in) 12.7 cm |
|
|
Height |
4.25 (in) 10.8 cm |
|
|
Depth |
4.25 (in) 10.8 cm |
|
|
Shipping |
Calculated at Checkout |
|
|
Product Description |
Aplex SC-170L/SC-170DD Bonded Piston Assembly SKU: 303010 This Bonded Piston Assembly is a critical integrated wear part for the Aplex SC-170L/SC-170DD mud pump. It features a wear-resistant rubber/polymer (e.g., Nitrile or HNBR) permanently vulcanized onto a rigid metal core (alloy steel). This one-piece design eliminates the risk of seal loosening found in traditional piston components, ensuring a reliable self-sealing effect under high fluid pressure impact. It is an optimized solution for guaranteeing stable operation and reduced maintenance time in HDD high-flow, high-pressure service. |
|
|
|
||
|
Product Name |
Liner Gasket |
|
|
Brand |
APLEX |
|
|
SKU |
316-049042-508 |
|
|
Weight |
0.03 lbs 0.05 kg |
|
|
Width |
5.00 in 12.7 cm |
|
|
Height |
5.00 in 12.7 cm |
|
|
Depth |
0.06 in 0.2 cm |
|
|
Shipping |
Calculated at Checkout |
|
|
Product Description |
Aplex Liner Gasket SKU: 316-049042-508 This Liner Gasket is a critical static seal for the fluid end of high-power mud pumps like the Aplex SC-170DD. It is precision-molded from highly resilient, high-pressure-resistant Nitrile Rubber (NBR/Buna-N) or an enhanced elastomer. The gasket is positioned around the outside diameter of the cylinder liner where it seats in the cylinder body, ensuring a reliable seal under high pressure and preventing fluid leakage from the rear of the liner. Its precise dimensions and excellent extrusion resistance are key wear parts for guaranteeing pump volumetric efficiency and operational safety. |
|
|
|
||
|
Product Name |
SKU - 7204-1196-00D FLUID END SC-170DD |
|
|
Brand |
APLEX |
|
|
SKU |
7204-1196-00D |
|
|
Weight |
676.00 LBS 405.6kg |
|
|
Width |
48.00 (in) 121.9cm |
|
|
Height |
48.00 (in) 121.9cm |
|
|
Depth |
19.00 (in) 48.3cm |
|
|
Shipping |
Calculated at Checkout |
|
|
Product Description |
Aplex SC-170DD Fluid End (Liquid End Body) SKU: 7204-1196-00D This Fluid End Body is the core pressure-bearing structure of the Aplex SC-170DD mud pump's fluid end. It is precision-cast and machined from high-strength Ductile Iron. Ductile Iron is known for its exceptional high-pressure resistance, high strength, and impact resistance, enabling it to withstand continuous working pressures exceeding 2,700 PSI. This bare fluid end provides precisely machined ports and space for the ceramic liners and abrasion-resistant valves, serving as the structural foundation for the pump's long-term durability and system integrity in HDD and other high-pressure abrasive fluid applications. |
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|
|
||
|
Product Name |
Seal Housing O-Ring |
|
|
Brand |
APLEX |
|
|
SKU |
1500421 |
|
|
Weight |
0.01 LBS 0.05 kg |
|
|
Width |
5.50 in 14.0 cm |
|
|
Height |
5.70 in 14.5 cm |
|
|
Depth |
0.13 in 0.3 cm |
|
|
Shipping |
Calculated at Checkout |
|
|
Product Description |
Seal Housing O-Ring (SKU:001500421) Made from ASTM D2000-22 NBR 70±5A rubber (Oil Resistance Class 2), three-stage vulcanization (140°C×30min+160°C×60min+180°C×90min), compression set ≤15% (GB/T 528-1998). API 7K compliant for mud pump seal housing, UNF 3A thread accuracy ±0.001", salt spray tested >1000hrs corrosion-free. Operational temp -30°C~120°C. |
|
|
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||
|
Product Name |
Pony Rod Oil Seal |
|
|
Brand |
APLEX |
|
|
SKU |
145-200212-503 |
|
|
Weight |
0.05 LBS 0.05 kg |
|
|
Width |
2.50 in 6.4 cm |
|
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Height |
2.50 in 6.4 cm |
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Depth |
0.45 in 1.1 cm |
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Shipping |
Pony Rod Oil Seal |
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Product Description |
Aplex Pony Rod Oil Seal SKU: 145-200212-503 This Pony Rod Oil Seal is a critical dynamic seal in the power end of Aplex SC/MA Series pumps. The sealing lip is precision-molded from oil-resistant, highly elastic Nitrile Rubber (NBR) or high-wear Polyurethane, often housed in a stamped steel case. Its primary function is to contain the lubricant within the crankcase while acting as a barrier against external contaminants. This seal is a core anti-leak component for maintaining the cleanliness of the power end oil system and extending bearing/crosshead life. |
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Product Name |
Pony Rod Wiper Seal |
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Brand |
APLEX |
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SKU |
145-200236-503 |
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Weight |
0.01 LBS 0.05 kg |
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Width |
2.38 in 6.0 cm |
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Height |
2.38 in 6.0 cm |
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Depth |
0.27 in 0.7 cm |
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Shipping |
Calculated at Checkout |
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Product Description |
Aplex Pony Rod Wiper Seal SKU: 145-200236-503 This Pony Rod Wiper Seal is a critical isolation seal in the power end of Aplex SC/MA Series pumps. It is precision-molded from highly wear-resistant Polyurethane or Nitrile Rubber (NBR), often housed in a stamped metal case. The wiper lip design actively scrapes and excludes mud, water, and contaminants from the piston rod, ensuring the vital crankcase lubricant remains clean. This seal acts as the first line of defense for maintaining the pump's internal lubrication system integrity and extending bearing life. |
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Product Name |
KIT PAIR B-85 CRNKSHFT BRNG |
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Brand |
APLEX |
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SKU |
7204-0073-10K |
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Weight |
1.58 lbs 0.95kg |
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Width |
10.30 in 26.2cm |
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Height |
4.75 in 12.1cm |
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Depth |
5.50 in 14cm |
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Shipping |
Calculated at Checkout |
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Product Description |
Aplex Valve Repair Kit SKU: 7204-0073-10K This Valve Repair Kit is a high-performance maintenance package for the fluid end of Aplex high-pressure mud pumps (e.g., SC-170). The valve components (disc, seat, etc.) are typically precision-machined from high-hardness hardened Alloy Steel or Stainless Steel. The seals, such as O-rings, are made from oil-resistant, highly elastic Nitrile Rubber (NBR) or Polyurethane. The kit ensures precise unidirectional fluid control under high pressure, effectively addressing seal failure and performance degradation, making it a critical maintenance solution for guaranteeing high volumetric efficiency and reduced downtime. |
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Product Name |
SKU-7204-0311-00D ROD CONNECTING |
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Brand |
APLEX |
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SKU |
7204-0311-00D |
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Weight |
20.00 LBS 12kg |
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Width |
15.50 (in) 39.4cm |
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Height |
6.00 (in) 15,2cm |
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Depth |
3.00 (in) 7.6cm |
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Shipping |
Calculated at Checkout |
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Product Description |
Aplex SC-170DD Connecting Rod SKU: 7204-0311-00D This Connecting Rod is a core transmission component in the power end of Aplex SC-170DD series pumps. The rod body is precision-cast and machined from high-strength Ductile Iron or Alloy Steel, featuring a split cap design. It works with steel-backed/babbitt-lined bearing inserts (big end) and bronze bushings (small end) to ensure low-friction, high-efficiency power transfer from the crankshaft to the piston. Its high-strength, high-fatigue-resistant design is critical for guaranteeing long-term stable operation under high-power, heavy-load service. |
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Product Name |
Gasket Crankcase Cover |
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Brand |
APLEX |
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SKU |
7502-1035-00B |
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Weight |
0.09 lbs 0.05g |
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Width |
24.00 in 61.0cm |
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Height |
10.50 in 26.7cm |
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Depth |
0.06 in 0.2cm |
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Shipping |
Calculated at Checkout |
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Product Description |
Aplex Crankcase Cover Gasket SKU: 7502-1035-00B This Crankcase Cover Gasket is a critical static seal for the power end of Aplex SC/MA Series pumps. It is typically precision-cut from oil-resistant non-asbestos fiber paper (Vellumoid) or compressed composite material. The gasket mounts between the crankcase cover and the pump casing, ensuring that internal SAE 30 lubricant does not leak and maintaining the cleanliness and integrity of the power end system. Its precise dimensions and good resilience are vital wear parts for guaranteeing long bearing life and smooth pump operation. |
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Product Name |
LINER & VALVE CAP SEAL SC-170DD |
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Brand |
APLEX |
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SKU |
05876A279 |
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Weight |
0.10 LBS 0.06kg |
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Width |
4.00 (in) 10.2cm |
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Height |
0.25 (in) 0.6cm |
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Depth |
4.00 (in) 10.2cm |
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Shipping |
Calculated at Checkout |
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Product Description |
Aplex SC-170DD Liner & Valve Cap Seal SKU: 05876A279 This Seal is a critical static sealing element for the fluid end of Aplex SC-170DD and similar high-power pumps. It is precision-molded from highly elastic, pressure- and chemical-resistant Nitrile Rubber (NBR/Buna-N) or an enhanced polymer. The seal's primary function is to ensure a reliable seal at the interface between the cylinder liner and the valve chamber, preventing high-pressure fluid leakage in the valve cap area. Its precise dimensions and excellent extrusion resistance are key wear parts for guaranteeing pump volumetric efficiency and operational safety. |
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