Power End: the cornerstone of durability and continuous operation

Crankcase: a solid foundation for stable operation

The crankcase of the C35-20 is precision cast in rugged, monolithic ductile iron. We chose ductile iron that meets the ASTM A536 standard because of its superior strength, ductility, and impact resistance, which effectively absorbs the vibrations of reciprocating motion, thus providing an extremely stable operating platform for the entire dynamic system. In addition, the removable cover plate design greatly facilitates the field maintenance and repair, reflecting our user-centered design philosophy.

Crankshaft and bearings: precision built to withstand high loads

As the core of power transmission, the crankshaft is made of automotive industrial grade 4140 heat-treated forged alloy steel 4. Compared with the conventional cast crankshaft, the forging process makes the grain structure inside the steel more dense and oriented, thus obtaining unparalleled fatigue strength and toughness, which can be used to improve the fatigue life of the crankshaft, this is the key to ensuring that the pump can withstand continuous high-strength operations.

The main bearings are heavy-duty tapered roller bearings, a bearing type designed to withstand both high radial and axial loads, ensuring perfect crankshaft alignment under all operating conditions, thus, the wear of related components is minimized. In addition, the two-way rotation of the crankshaft provides customers with great installation flexibility in complex equipment layouts.

Connecting rod and crosshead: efficient and reliable power transmission

The transmission of power from the crankshaft to the plunger depends on the reliability of the connecting rod and crosshead assembly. We chose high-strength ductile iron (ASTM A536) to fabricate the connecting rod and heavy-duty crosshead. A crucial design feature for maintainability is a replaceable bronze wrist pin bushing integrated into the connecting rod. This means that after a long period of use, the user only needs to replace the worn bearing bush, rather than replacing the entire expensive connecting rod assembly, thus significantly reducing the cost of life-cycle maintenance. The"Pony" rod is made of fine-polished 303 stainless steel and securely connected to the crosshead with axial threads and pins, ensuring perfect alignment and low friction operation, effectively extend the life of the seal.

Hydraulic end: Precision Engineering for abrasive and corrosive environments

Manifolds and cylinder liners: pressure sealing systems

The hydraulic end pump body -LRB-manifold) is made of high strength ductile iron, which provides a solid and reliable pressure chamber for high pressure operation and can effectively resist the stress caused by continuous operation. The durability advantages of this material are particularly prominent in applications where pressure fluctuations exist, such as dredging of municipal pipelines.

One of the core technical highlights is its tapered stainless steel cylinder liner with ceramic coating 4. This composite structure has the strength and toughness of the stainless steel matrix and the ultra-high wear resistance of the ceramic surface. Ceramic coating can effectively resist the erosion of abrasive fluid (such as mud, sand) , which greatly prolongs the service life of cylinder liner and piston packing, and reduces the maintenance frequency and cost.

Piston and packing assembly: the core of the sealing system

The piston assembly consists of a solid stainless steel piston rod, pressure ring, spring, retainer ring and locking screws, ensuring durability in corrosive media.

The packing is made of cotton fabric reinforced Nitrile rubber and supported by an Aluminum Phenolic follower with a multi-layered lip v-ring design. This multi-lip structure provides redundant sealing points to ensure a reliable sealing effect under high pressure. Nitrile rubber has excellent resistance to oils and fluids common in industry.

Valve group system options: tailor-made for your specific application

C35-20 standard (metal valves)

Valve group configuration: with flat valve made of * * high grade stainless steel (SST-RRB- * * .

Applicable conditions: this model is the ultimate choice for handling abrasive particle fluids, such as municipal sewer dredging, mine mud transportation and industrial high-pressure cleaning. The hardness and toughness of the stainless steel valve group can effectively resist the impact and wear of solid particles.

C35-20-DV Type (acetal resin valve)

Valve set: flat valve (part No. 17714A003) with * * Acetal/DELRIN * * polymer.

Working conditions: this type is designed for applications with special requirements for chemical compatibility. Acetal resin has excellent solvent and hydrocarbon resistance, while its low coefficient of friction and high dimensional stability ensure the smooth operation of the valve and long-term reliable seal. Therefore, C35-20-DV is ideal for food processing, chemical delivery, and car washing industries that use specific cleaners.

Technical specifications and performance data

This section provides a comprehensive technical parameters and performance data for engineers and procurement experts to provide a clear and accurate reference.

Table 1: Myers C35-20 general technical specifications

Parameters	Specifications
Catalog number	C35-20
Type of pump	Triplex Piston
Maximum rated flow	35gpm (132.49LPM)
Maximum rated pressure	2000 PSI (138 Bar)
Maximum liquid temperature	180∘ F (82∘ c)
Cylinder diameter	143 inches
Piston stroke	143 inches
Suction port size	121"NPT
Outlet size	1"NPT
Input axis diameter	183 inches
Keyway dimensions	5/16"X 5/32"(7.94 x 3.97 mm)
About the weight	230 lbs (104.2 kg)
Sources of data:

Table 2: horsepower performance data

Flow	Rpm	500 PSI (34 Bar)	1000 PSI (69 Bar)	1500 PSI (103 Bar)	2000 PSI (138 Bar)
GPM (LPM)	RPM	Horsepower required (HP)	Horsepower required (HP)	Horsepower required (HP)	Horsepower required (HP)
15(56.8)	250	5.2	10.3	15.5	20.6
20(75.7)	330	6.9	13.8	20.6	27.5
25(94.6)	415	8.6	17.2	25.8	34.4
113.6	495	10.3	20.6	31.0	41.3
35(132.5)	580	12.1	24.1	36.2	48.3
Note: horsepower requirements are based on an overall efficiency of 85 per cent. For internal combustion engine (gasoline or diesel) drive, multiply the values listed in the table by 1.3.
Sources of data:

OEM original hydraulic end repair kit

Table 3: C35-20(metal valves) hydraulic end service kit-part No. 17678A008

Component description	OEM part number	Number of parts per set	Details of material and workmanship
Copper washers	05030A128	3	Copper
Fiber gaskets	05059A435	3	Vellumoid
Nylon Gasket	05059A436	6	Nylon
Nylon Gasket	05059A437	3	Nylon
O-rings	05876A171	6	Buna-N, Size 124,1167"OD
O-rings	05876A172	3	Buna-N, Size 034,241"OD
O-rings	05876A173	3	Buna-N, Size 140,2167"OD
Suction valve spring	06127A002	3	Stainless Steel (SST)
Discharge valve spring	06127A003	3	Inconel X750
Valve	17714A002	6	Stainless Steel (SST) , Flat
Support rings	18753A008	6	Nitrile, 1.26"
Support rings	18753A009	3	Nitrile, 2.26"
V-shaped packing	18922A002	3	Nitrile with Fabric Reinforcement
U-cup	22835A004	6	Metric, 30mm OD x 22mm ID
Sources of data:

Table 4: C35-20-DV (acetal resin valve) hydraulic end service kit-part No. 17678A010

Component description	OEM part number	Number of parts per set	Details of material and workmanship
Copper washers	05030A128	3	Copper
Fiber gaskets	05059A435	3	Vellumoid
Nylon Gasket	05059A436	6	Nylon
Nylon Gasket	05059A437	3	Nylon
O-rings	05876A171	6	Buna-n
O-rings	05876A172	3	Buna-n
O-rings	05876A173	3	Buna-n
Suction valve spring	06127A002	3	Stainless Steel (SST)
Discharge valve spring	06127A003	3	Inconel X750
Valve	17714A003	6	Acetal (Delrin) , Flat
Support rings	18753A008	6	Nitrile
Support rings	18753A009	3	Nitrile
V-shaped packing	18922A002	3	Nitrile with Fabric Reinforcement
U-cup	22835A004	6	Metric
Sources of data:

Index of component material and process

To help customers quickly retrieve specific spare parts, the material information for key components is listed below:

Name of the component	OEM part number	Material specification
Support rings	18753A008	Nitrile
Bearing Bush	06109A010K	Steel/Babbitt
Copper washers	05030A128	Copper
Cylinder liner	06124A002	Ceramic Coated Stainless Steel
Driven parts	19328A000	Aluminum Phenolic
Gaskets	05059A436	Nylon
O-rings	05876A171	Buna-n
Valve plate (acetal resin)	17714A003	Acetal/Delrin
Valve Plate (metal)	17714A002	Stainless Steel