DL FR-50 GPM COMP HDD Pump

To provide you with a comprehensive understanding of the DL FR-50 GPM COMP high-pressure plunger pump's performance, we have compiled the following key technical parameters.

Table: DL FR-50 GPM COMP – Key Performance Specifications

Table: DL FR-50 GPM COMP – Performance Table (L0618 2.25" Piston)

The exceptional performance of the DL FR-50 GPM COMP stems from its strict control over material selection and manufacturing processes. Every component is meticulously designed and manufactured to ensure reliability and durability in demanding conditions.

Fluid End Precision Design:

Fluid Cylinder/Valve Chamber Material & Craftsmanship: The fluid end cylinder (valve chamber) of the DL FR-50 GPM COMP comes standard with high-strength Ductile Iron (valve chamber P/N P515240; COMPACT type fluid cylinder P/N 166409 is made of ductile iron). This material offers excellent strength and toughness, capable of withstanding high-pressure operating environments. For specific corrosive fluids, we also offer optional materials such as Nickel Aluminum Bronze to enhance the pump's corrosion resistance and extend its service life in special chemical environments.

Cylinders/Liners: To address the challenges posed by abrasive media, this pump model uses wear-resistant ceramic-coated liners (P/N P509088) or steel-jacketed ceramic liners (P/N 1272060). Ceramic materials possess extremely high hardness and chemical stability, providing excellent wear and corrosion protection, thereby significantly extending the pump's maintenance cycle and overall service life.

Pistons & Piston Cups: Equipped with "SUPERGOLD" hemispherical abrasion-resistant piston cups (P/N P509003) designed specifically for abrasive conditions. This piston cup design aims to provide excellent sealing and extended service life. The cup material is typically a composite of Nitrile Rubber (NBR) or Hydrogenated Nitrile Butadiene Rubber (HNBR) reinforced with Kevlar® fibers. These material combinations provide the cup with excellent wear resistance, oil resistance, and resistance to various chemicals. The piston seat (L0618HV hemispherical cup applicable model P/N P510072) is precisely designed to ensure stable support and efficient sealing for the cup.

Valve Assemblies: Depending on application needs, Abrasion Resistant (AR) Valves can be selected, such as suction valve P/N P533621 and discharge valve P/N P533626 suitable for the L06COMP series. AR valve bodies and seats are typically made of hardened stainless steel (e.g., 17-4PH) or other wear-resistant alloy materials. Valve inserts can be made of polyurethane or special alloys to effectively handle fluids containing solid particles.

Packing & Seals: Utilizes a V-ring packing combination seal design (V-ring packing set P/N 5259396 for L0614SC pump; V-ring packing set P/N P509237 for L0618 pump). This multi-lip seal design automatically enhances sealing force as pressure increases. Packing materials offer various options, including Nitrile Rubber + Fabric (NBR+Fabric), Fluoroelastomer + Fabric/PTFE (FKM+Fabric/PTFE), and Aramid fiber (Aramid) / Polytetrafluoroethylene (PTFE) braided packing. Supporting components like packing glands and packing seats are made of brass (brass packing seat P/N 5266446 for L0614 pump) or other high-strength wear-resistant materials, ensuring the overall stability and lifespan of the sealing system.

Robust Power End:

Frame/Crankcase: Manufactured from high-strength cast iron (L0618COMP power end frame P/N 166250), typically with a one-piece cast structure. Some models may use precision welding to ensure high rigidity and long-term durability of the pump body. The DL FR-50 GPM COMP model's power end frame is equipped with specially designed front feet. This design helps optimize pump installation and may enhance stability during operation or provide better vibration damping, especially suitable for compact integration needs.

Crankshaft: Made of high-quality ductile iron (L0618COMP crankshaft P/N 166300, with internal splines) or high-strength forged alloy steel. All crankshafts undergo precision heat treatment and machining to achieve excellent strength, toughness, and fatigue resistance.

Connecting Rods: Uses ductile iron connecting rods equipped with wear-resistant bronze bushings (L06/M06 series connecting rod P/N 5262025). This robust design ensures smooth power transmission and a long service life.

Crosshead/Piston Rod: The crosshead assembly (L06 series crosshead assembly P/N 5254181) uses high wear-resistant materials like cast iron and is precision-machined to ensure extremely high guiding accuracy and smooth motion. The piston rod (also known as pony rod) is made of high-quality alloy steel (e.g., commonly used SAE 4140). Its surface can undergo hardening treatments such as hard chrome plating to significantly improve wear and corrosion resistance, extending component life.

Bearings: Main bearings are heavy-duty, internationally renowned brand bearings, such as Timken Tapered Roller Bearings (L06 series main bearing reference P/N 320125 (inner ring/cone) / 320124 (outer ring/cup)). These high-quality bearings ensure smooth and efficient power transmission and can withstand high loads. Connecting rod bearings use automotive industry-grade sliding bearings (L06 series connecting rod bearing P/N 5257669), offering excellent load capacity and wear resistance.

Lubrication System: Employs a reliable splash lubrication system to ensure continuous and adequate lubrication of all critical moving parts in the power end during operation. It is recommended to use SAE 30 grade lubricating oil. The power end oil capacity is 2 quarts (approx. 1.9 liters).

Manufacturing Excellence:

The manufacturing process of the DL FR-50 GPM COMP strictly adheres to comprehensive quality control procedures, ensuring that every pump leaving the factory meets excellent quality and performance standards.

Key components, such as crankshafts and connecting rods, are produced using precision machining processes. Depending on component requirements, advanced techniques such as forging (where applicable) and heat treatment may be employed to enhance mechanical strength, wear resistance, and overall durability.

Our manufacturing facility complies with ISO 9001 quality management system standards, which is a strong guarantee of our product quality commitment.

Table: DL FR-50 GPM COMP – Key Component Materials & Processes Overview

The DL FR-50 GPM COMP high-pressure plunger pump, with its superior performance and robust design, is widely applicable in various demanding industrial and municipal scenarios. Its prototype, the DL L06 series pump, has extensive application experience and a good reputation in these fields.

The versatility and reliability of the DL FR-50 GPM COMP enable it to meet the diverse needs of customers across different industries, making it a trustworthy high-pressure fluid transfer solution.

Choosing the DL FR-50 GPM COMP high-pressure plunger pump means you are selecting a reliable partner that integrates proven technology with innovative design. The core advantages of this pump lie in its:

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