Pressure Reducing Valve

Type 652

Pressure Reducing Valve 652

For liquids, gases and steam up to 365° F.
Balanced valve with high flow rates and low leakage depending on soft seal, also with steam.

Description

Mankenberg self acting pressure reducing valves are simple basic regulators that provide precision control and are easy to install and maintain. They control the pressure at the outlet side without use of any external electrical or pneumatic actuators.

Pressure reducing valve 652 is a balanced, diaphragm-controlled, spring-loaded proportional regulator, as good for steam as for liquids and gas. Depending on the soft seal it has a very low leakage rate, also with steam. It has a sense line connection. During installation a sense line MUST be installed.

This valve is made of deep-drawn stainless steel and feature excellent corrosion resistance. It is less heavy than conventional caste valves and mostly support brackets are not necessary.

The spring module including the cover, spring, set screw, diaphragm and internals is fastened with 2 screws at the clamp for easy handling. Changing the diaphragm or the complete spring module for another pressure range is very easy and done without special tools or training. The valve remains in place in the line even for maintenance. Adjusting the set pressure does not change the height of the unit.

The spring keeps the valve in full open position when the pipeline is depressurized. Under pressure the medium flows from the inlet through the valve seat to the outlet and acts on the spring module via the sense line. As the outlet pressure rises above the set pressure, the valve orifice is reduced restricting the flow. As the outlet pressure drops the valve orifice becomes larger increasing flow. The pressure setting is adjusted by turning the set screw to change the spring tension.

Options

Manometer connection

Internal sense line

Cooling section for steam temperatures up to 430°F.

For toxic or hazardous applications, use a spring cap with the set-screw sealing fitted with a leakage line connection. During installation a leakage line MUST be installed

Different materials for gaskets and diaphragms are available for comparability with your product. Please ask Mankenberg if you have a problematic medium.

Special designs are available to suit your specifications. Please inquire

Guidelines for selection, installation and operation (what you should know, notes on safety, etc.) MUST be followed

Technical Data

CONNECTION: 1/2"-2" Tri-Clamp. 1/2"-2" NPT 1/2"-2" ANSI

INLET PRESSURE: Up to 580 psi.

OUTLET PRESSURE: 0.3-175 psi in 7 adjusting ranges.

CV-VALUE: 4.6-21 US gal/min.

TIGHTNESS: ANSI class VI

SENSE LINE: Yes

Downloads

View PDF Version of the spec sheets on this valve.