Free Technical Downloads

P257 Data Sheet 
P257 Codebook 

Product Overview

• The P257 is a medium frame sized, hydraulic bushing gear pump with high pressure capabilities.
• The P257 series gear pump is built from cast iron ensuring a strong and long lasting product, which can stand the most robust applications. Single & multiple units are available as per your requirements.
• The pressure loaded wear plates of the pump, provides you with a high efficient product.
• A wide range of configurable mounting, shaft and porting options are available to suit your unique requirements. (Please see bottom of the page for more info.)
• Compatible with Mineral Oil, Water Glycol, Invert Emulsion & Fire Resistant fluids.
• Spare parts available from stock, such as seal kits, flanges, shafts and individual pump sections enabling a fast turnaround for you if required.

Our Service to you

• We machine, build from stock and test the P257 gear pump on site, to ensure the highest quality and a workable product is delivered to you. The P257 gear pump also comes with a 12 month warranty.
• In the event your product breaks down in the first 12 months, please CONTACT US so we can your warranty rights with you.
• In the event of an emergency or you have a machine breakdown; we can supply this product to you with a 24 / 48 turnaround.
  

Common Applications

Customers of ours have used this gear pump in applications such as:

• Cranes
• Refuse trucks

But can be applied to a wide range of mobile machinery within a variety of industries.

ATEX Information

The P257 can be supplied as an ATEX gear pump if required. ATEX Group I & II approval is required, if the product will be used in potentially explosive atmospheres. ATEX gear pumps are ideally suited for applications in the mining, oil & gas industry.

Mounting, Drive Shaft, Porting Options

Product Coding Example

Pump Performance

Recommended Operating Conditions

• Fluid viscosity, normal operating conditions 9 - 220 cst.
• Fluid temperature should not exceed 82 deg C for mineral oil or 57 deg. C for water glycol.
• Fluid cleanliness, 10 micron filter with Beta 200 rating is recommended.
• Inlet pressure; for best operation with mineral oil, pressure should not exceed minus 0.237 BAR (7 in HG) or with water glycol, minus 0.101 BAR (3 in HG)

Weights & Dimensions