This option provides a control pressure range of nominally 12.5% of the normally required control pressure range for the A, B and D pressure ranges and at 6.25% for the F pressure range. This feature is only available for certain valves with pressure ranges of A, B, C and F. It is not available for R(C)G(O)-03 models.

Direct acting pressure limiting relief valves are fast acting and should be used to: • Protect fixed displacement pumps and directional control.

Pressure-control valves are found in virtually every hydraulic system PDF format, including high resolution graphics and schematics when 

Ball valves are considered high recovery valves, having a low pressure drop and relatively high flow capacity. Best Suited Control: Quick opening, linear.

The following steps can be followed for simplified Control Valve Sizing: STEP #1: Define a maximum allowable pressure drop for the valve. STEP # 2: Calculate the valve coefficient (Cv) STEP # 3: Preliminary valve selection. STEP # 4: Check the Cv and stroke percentage at the minimum flow.

PRESSURE REDUCING CONTROL VALVE: Pressure control valve that is able to reduce the pressure between the valve and the gun (with the gun closed) by as much as 30% of the operating pressure. This is useful as it makes the gun extremely manageable. The section upstream to the valve is always at low pressure because of the

Fisher severe service control valves are used in the most difficult installations within your process plant. These installations commonly including cavitating, erosive, corrosive, flashing, outgassing, noisy, high pressure, high temperature, high pressure drop, or high velocity media that can cause premature failure.

Pressure-control valves are used in hydraulic systems to control actuator force (force = Three-dimensional view of simple pressure-relief valve.

The pressure control valve prevents the build up of exces- sive pressure on the operating side of the system and protects the pump, pipework, vessels, glassware etc. Anti-injection function. A control valve is supplied with dry saturated steam from a separator at 12 bar g and used to drop steam pressure to 4 bar g at full load.

bypass control valves. Models 64500 and 64510 are the latest innovation in 3 and 4-inch inline air reference pressure operated control valves. They replace earlier Model 64080 3-inch and Model 64124 4-inch inline pressure control valves. These valves utilize a

Threaded, welded, or bolted joints in the body enable it to receive inlet and outlet piping, and resist the fluid pressure loads as well. Different connections connect different control valve parts together and different designs enable the application of diverse nozzles and connection types suitable for specific needs.