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B4 Triple Screw Pump For Demanding High Pressure Oil Application

B4 Triple Screw Pump For Demanding High Pressure Oil Application

The B4 Triple Screw Pump delivers reliable high‑pressure transfer for mineral oil phosphate ester and water‑glycol fire‑resistant fluids. With max pressure up to 20.6 MPa and 30‑700 L/min flow it features flange or foot mount alloy steel rotors and optional mechanical seal for heavy‑duty continuous industrial operation.
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Product Introduction

Wuhan Xinlaifu Hydraulic Equipment Co., Ltd. is one of the leading manufacturers and suppliers of b4 triple screw pump for demanding high pressure oil application in China. With abundant experience, we warmly welcome you to buy high quality customized products at competitive price from our factory. Also, OEM&ODM service is available.

 

 

 

Technical specifications

 

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Item Specification
Part Number B4 Series
Product Type Triple Screw Pump
Applicable Machine High pressure hydraulic station Fire‑resistant fluid system Heavy‑duty industrial circulation unit
Brand Reference Replacement for mainstream high‑pressure triple screw pump
Application High‑pressure transfer of mineral oil phosphate ester water‑glycol fire‑resistant hydraulic fluid
Gear Structure Triple‑screw rotor structure 1 driving screw 2 driven screws
Material Pump housing Cast Iron Rotor Alloy Steel
Output Torque -
Working Pressure Max 20.6 MPa
Installation Form Flange Mount & Foot Mount
Working Condition Flow 30‑700 L/min Temperature ‑20°C ~ +80°C For mineral oil and fire‑resistant hydraulic media
Sealing Type Standard Oil Seal Optional Mechanical Shaft Seal
Weight -
Remark Low pulsation heavy‑duty performance premium industrial replacement unit

Product Overview

 

B4 Triple Screw Pump For Demanding High Pressure Oil Application

The B4 Series Triple Screw Pump is a heavy‑duty industrial triple screw pump purpose‑built for demanding high‑pressure hydraulic and oil transfer operations. Capable of reaching maximum working pressure up to 20.6 MPa with broad flow output ranging from 30 L/min to 700 L/min this unit handles challenging media including mineral oil phosphate ester and water‑glycol fire‑resistant hydraulic fluids.

Available in both flange mount and foot‑mount configurations the pump offers flexible installation to match different system layout requirements. Rotor components are constructed from high‑strength alloy steel while the pump housing adopts cast iron for enhanced durability under sustained high‑pressure loads. It comes with standard oil seal and optional mechanical seal to satisfy diverse leakage‑control requirements.

Maintaining stable low‑pulsation delivery within‑20 °C to +80 °C operating temperature the B4 triple screw pump performs reliably for continuous heavy‑duty cycles. It serves as a premium drop‑in replacement solution for existing high‑pressure screw pump equipment across global industrial sites.

 

Features and Advantages

 

  • High‑strength alloy steel triple‑screw rotor assembly Delivers outstanding mechanical stability under long‑term high‑pressure load, resisting wear for extended service cycles.
  • Max working pressure up to 20.6 MPa with 30‑700 L/min flow coverage Covers wide‑range high‑pressure process requirements for diverse heavy‑duty hydraulic production lines.
  • Dual installation configuration flange mount and foot mount Accommodates original equipment build as well as field retrofit projects without major structural modification.
  • Robust cast iron pump housing Absorbs pressure shock effectively, suitable for continuous operation in harsh industrial workshop environments.
  • Dual sealing solution standard oil seal plus optional mechanical shaft seal Gives on‑site engineers flexibility to select sealing grade according to actual fluid leakage control standards.
  • Media compatibility for mineral oil phosphate ester and water‑glycol fire‑resistant fluid One pump unit supports multiple special hydraulic media, reduces spare‑part inventory for mixed‑medium workshops.
  • Low‑pulsation fluid delivery across full operating range Minimizes vibration impact on valves sensors and pipelines, improving overall hydraulic‑system stability.
  • Operating temperature scope ‑20°C to +80°C Maintains steady performance under wide ambient and medium temperature variation for global site conditions.
  • Drop‑in interchangeable structure for mainstream high‑pressure screw pumps Works as premium alternative for existing units, shortens equipment downtime during pump replacement.

Typical applications

B4 Series triple screw pump is engineered for high‑pressure circuits and fire‑resistant fluid handling. It is widely adopted in facilities requiring stable pressurized oil supply under severe working conditions.

‑ High‑pressure hydraulic power stations using phosphate ester or water‑glycol media

‑ Heavy‑duty metallurgical hydraulic lubrication and circulation loops

‑ Steel mill rolling mill hydraulic servo oil supply systems

‑ Marine auxiliary hydraulic systems with fire‑resistant fluid requirements

‑ Power plant turbine fire‑safe hydraulic control circuits

‑ Heavy machinery centralized high‑pressure lubrication systems

‑ Petrochemical plant high‑pressure auxiliary oil transfer processes

‑ Hydraulic system upgrade retrofit and old high‑pressure screw pump replacement

‑ Industrial test bench high‑pressure hydraulic fluid supply units ‑ Heavy‑duty press machine hydraulic oil circulation systems

 

 

 

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Q1 What kinds of fluids can the B4 triple screw pump process?

A1 The B4 pump works with mineral oil, phosphate ester and water‑glycol fire‑resistant hydraulic fluids for high‑pressure circulation and transfer tasks.

 

Q2 What is the maximum pressure and flow range of B4 series pump?

A2 It reaches max working pressure up to 20.6 MPa, with flow capacity from 30 L/min to 700 L/min across different model options.

 

Q3 What installation forms are available for B4 triple screw pump?

A3 B4 supports both flange mount and foot‑mount configurations to fit new system build as well as equipment retrofit.

 

Q4 What sealing options does B4 series provide?

A4 Standard configuration comes with oil seal. Mechanical shaft seal is available as optional upgrade for higher anti‑leakage requirements.

 

Q5 Can B4 triple screw pump run continuously under full high‑pressure load?

A5 Yes. Alloy steel rotor and cast iron housing enable long‑term continuous operation under demanding high‑pressure industrial conditions.

 

Q6 Can B4 series be used as a replacement for existing high‑pressure triple screw pump?

A6 Yes. It is designed as drop‑in replacement solution for mainstream high‑pressure triple screw pumps, helping shorten equipment downtime.

 

Q7 What is the allowable operating temperature range?

A7 Stable operation within ‑20°C to +80°C when using qualified compatible hydraulic media.

 

Q8 What industries benefit most from B4 triple screw pump?

A8 It is widely used for metallurgy, steel mill, power plant, marine, heavy press, petrochemical and high‑pressure hydraulic test‑bench systems.

Model Displacement

Reference for Selection Technical Parameters

Series Model No. Rotor OD
φD (mm)		 Screw Length Lead Max Pressure
(MPa)		 Capacity
(L/min)		 Mounting Applicable Fluid Shaft Seal Casing Mat. Power Rotor Mat. Idler Rotor Mat. Safety Valve Weight
(kg)		 Oil Vol.
(L)
3D 25-3N8D 25 3 N 2.9 10~50 Flange Mount Hydraulic/Lube/Fuel Oil Mechanical Seal Cast iron Carbon steel Cast iron Optional (≤2.5MPa) 13 0.7
3D 25-3L8D 25 3 L 2.9 10~50 Flange Mount Hydraulic/Lube/Fuel Oil Mechanical Seal Cast iron Carbon steel Cast iron Optional (≤2.5MPa) 13 0.7
3D 38-3N7D 38 3 N 2.9 30~150 Flange Mount Hydraulic/Lube/Fuel Oil Mechanical Seal Cast iron Carbon steel Cast iron Optional (≤2.5MPa) 25 1.0
3D 38-3L7D 38 3 L 2.9 30~150 Flange Mount Hydraulic/Lube/Fuel Oil Mechanical Seal Cast iron Carbon steel Cast iron Optional (≤2.5MPa) 25 1.0
6D 25-6N8D 25 6 N 5.9 10~25 Flange Mount Hydraulic/Lube/Fuel Oil Mechanical Seal Cast iron Carbon steel Cast iron External Optional 13 1.0
6D 25-6L8D 25 6 L 6.9 10~35 Flange Mount Hydraulic/Lube/Fuel Oil Mechanical Seal Cast iron Carbon steel Cast iron External Optional 13 1.0
4X 38-4NXA 38 4 N 4.9 30~60 Foot Mount Lube/Fuel/Cutting Oil Mechanical Seal Cast iron Carbon steel Cast iron/Carbon steel None 37 1.5
4X 38-4LXA 38 4 L 6.9 30~60 Foot Mount Lube/Fuel/Cutting Oil Mechanical Seal Cast iron Carbon steel Cast iron/Carbon steel None 37 1.5
4X 45-4NXA 45 4 N 4.9 50~100 Foot Mount Lube/Fuel/Cutting Oil Mechanical Seal Cast iron Carbon steel Cast iron/Carbon steel Built-in Optional 47 3.0
4X 45-4LXA 45 4 L 6.9 50~100 Foot Mount Lube/Fuel/Cutting Oil Mechanical Seal Cast iron Carbon steel Cast iron/Carbon steel Built-in Optional 47 3.0
4X 52-4NXA 52 4 N 4.9 80~160 Foot Mount Lube/Fuel/Cutting Oil Mechanical Seal Cast iron Carbon steel Cast iron/Carbon steel Built-in Optional 66 4.0
4X 52-4LXA 52 4 L 6.9 80~160 Foot Mount Lube/Fuel/Cutting Oil Mechanical Seal Cast iron Carbon steel Cast iron/Carbon steel Built-in Optional 66 4.0
4X 60-4NXA 60 4 N 4.9 120~250 Foot Mount Lube/Fuel/Cutting Oil Mechanical Seal Cast iron Carbon steel Cast iron/Carbon steel Built-in Optional 93 4.5
4X 60-4LXA 60 4 L 6.9 120~250 Foot Mount Lube/Fuel/Cutting Oil Mechanical Seal Cast iron Carbon steel Cast iron/Carbon steel Built-in Optional 93 4.5
4X 70-4NXA 70 4 N 4.9 180~500 Foot Mount Lube/Fuel/Cutting Oil Mechanical Seal Cast iron Carbon steel Cast iron/Carbon steel Built-in Optional 116 5.0
4X 70-4LXA 70 4 L 6.9 180~500 Foot Mount Lube/Fuel/Cutting Oil Mechanical Seal Cast iron Carbon steel Cast iron/Carbon steel Built-in Optional 116 5.0
B3 B38-3LVMTB 38 3 L 4.9 40~80 Foot Mount Hydraulic/Lube Oil Mechanical Seal Cast iron Carbon steel Cast iron None 39 -
B3 B45-4H5VMTB 45 4 H 4.9 60~120 Foot Mount Hydraulic/Lube Oil Mechanical Seal Cast iron Carbon steel Cast iron None 39 -
B3 B45-4L5VMTB 45 4 L 4.9 60~120 Foot Mount Hydraulic/Lube Oil Mechanical Seal Cast iron Carbon steel Cast iron None 39 -
B3 B60-3LVMTB 60 3 L 4.9 120~260 Foot Mount Hydraulic/Lube Oil Mechanical Seal Cast iron Carbon steel Cast iron None 50 -
B3 B70-3LVMTB 70 3 L 4.9 180~600 Foot Mount Hydraulic/Lube Oil Mechanical Seal Cast iron Carbon steel Cast iron None 92 -
B4 B38-4L5FLTTD 38 4 L 20.6 30~80 Flange Mount Mineral/Phosphate Ester/Water-Glycol Oil Seal (Std)/Mech. Seal (Opt.) Cast iron Alloy steel Alloy steel None 32 1.5
B4 B38-4N5FLTTD 38 4 N 13.7 30~80 Flange Mount Mineral/Phosphate Ester/Water-Glycol Oil Seal (Std)/Mech. Seal (Opt.) Cast iron Alloy steel Alloy steel None 32 1.5
B4 B45-4L5FLTTD 45 4 L 20.6 50~150 Flange Mount Mineral/Phosphate Ester/Water-Glycol Oil Seal (Std)/Mech. Seal (Opt.) Cast iron Alloy steel Alloy steel None 49 3.0
B4 B45-4N5FLTTD 45 4 N 13.7 50~150 Flange Mount Mineral/Phosphate Ester/Water-Glycol Oil Seal (Std)/Mech. Seal (Opt.) Cast iron Alloy steel Alloy steel None 49 3.0
B4 B52-4L5KLTTD 52 4 L 20.6 80~250 Foot Mount Mineral/Phosphate Ester/Water-Glycol Oil Seal (Std)/Mech. Seal (Opt.) Cast iron Alloy steel Alloy steel None 80 4.0
B4 B52-4N5KLTTD 52 4 N 13.7 80~250 Foot Mount Mineral/Phosphate Ester/Water-Glycol Oil Seal (Std)/Mech. Seal (Opt.) Cast iron Alloy steel Alloy steel None 80 4.0
B4 B60-4L5KLTTD 60 4 L 20.6 120~400 Foot Mount Mineral/Phosphate Ester/Water-Glycol Oil Seal (Std)/Mech. Seal (Opt.) Cast iron Alloy steel Alloy steel None 120 4.5
B4 B60-4N5KLTTD 60 4 N 13.7 120~400 Foot Mount Mineral/Phosphate Ester/Water-Glycol Oil Seal (Std)/Mech. Seal (Opt.) Cast iron Alloy steel Alloy steel None 120 4.5
B4 B70-4L5KLTTD 70 4 L 20.6 180~700 Foot Mount Mineral/Phosphate Ester/Water-Glycol Oil Seal (Std)/Mech. Seal (Opt.) Cast iron Alloy steel Alloy steel None 160 5.0
B4 B70-4N5KLTTD 70 4 N 13.7 180~700 Foot Mount Mineral/Phosphate Ester/Water-Glycol Oil Seal (Std)/Mech. Seal (Opt.) Cast iron Alloy steel Alloy steel None 160 5.0
B6 B38-6LKMTTD 38 6 L 24.5 40~80 Foot Mount Mineral/Phosphate Ester/Water-Glycol Mechanical Seal Carbon steel Alloy steel Alloy steel None 90 -
B6 B45-6LKMTTD 45 6 L 24.5 60~150 Foot Mount Mineral/Phosphate Ester/Water-Glycol Mechanical Seal Carbon steel Alloy steel Alloy steel None 110 -
B6 B52-6LKMTTD 52 6 L 24.5 100~250 Foot Mount Mineral/Phosphate Ester/Water-Glycol Mechanical Seal Carbon steel Alloy steel Alloy steel None 140 -
B6 B60-6LKMTTD 60 6 L 24.5 150~400 Foot Mount Mineral/Phosphate Ester/Water-Glycol Mechanical Seal Carbon steel Alloy steel Alloy steel None 180 -
B6 B70-6LKMTTD 70 6 L 24.5 220~700 Foot Mount Mineral/Phosphate Ester/Water-Glycol Mechanical Seal Carbon steel Alloy steel Alloy steel None 300 -

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