1- HOW EXTERNAL GEAR PUMPS WORK2-MATERIALS OF CONSTRUCTION3-ORDERING CODE4- ADVANTAGES 5-DISADVANTAGES6-APPLICATIONS

External Gear Pump

How External Gear Pumps Work

Materials of Construction

Ordering code

Advantages

•High speed•High pressure•No overhung bearing loads•Relatively quiet operation•Design accommodates wide variety of materials

Disadvantages

•Four bushings in liquid area•No solids allowed•Fixed End Clearances

Applications•Various fuel oils and lube oils•Chemical additive and polymer metering•Chemical mixing and blending (double pump)•Industrial and mobile hydraulic applications (log splitters, lifts, etc.)•Acids and caustic (stainless steel or composite construction)•Low volume transfer or application

pressure relief valve

• A pressure relief valve is a safety device designed to protect a pressurized vessel or system during an overpressure event.

• An overpressure event refers to any condition which wouldcause pressure in a vessel or system to increase beyond thespecified design pressure. • The pressure relief valve must open at a

predetermined set pressure, flow a rated capacity

at a specified overpressure, and close when the system pressure has returned to a safelevel.