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Home → Catalogue → Pressure control → Control Valves → Bypass overflow valve ADCA OVF40S flanged, full bore, spring-loaded operated with the adjustment screw

Valsteam ADCA

Bypass overflow valve ADCA OVF40S flanged, full bore, spring-loaded operated with the adjustment screw

Specifications

Application

Hot and superheated water,
diathermic heat transfer oil,
fluids compatible with the construction
Body material

Carbon steel A216 WCB & Stainless Steel – Trim
Max. operating pressure

Up to 13,3 bar (Body design PN16),
Up to 33,3 bar (Body design PN40)
Flow rate coefficients

Kvs 5,2 to 89,7 (m³/h)
Opening pressure (Regulating range)

0,5 to 8 bar
Type & Plug design

V-port guided (standard), linear plug, full bore,
Perforated (low noise, anti-cavitation plug), on request
Valve port

two way in-line, full bore
Stem sealing

Stainless steel bellows sealed – up to 400ºC
Valve sealing

Metal to metal (class IV), standard
Actuator

direct acting spring-loaded operated with the adjustment screw
Connections

Flanged EN 1092-1 PN 16 or PN 40

Bypass overflow valve ADCA OVF40S flanged, full bore, spring-loaded operated with the adjustment screw

Product code: OF.3051.000

Available on request

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The ADCATrol OVF40 is a series of single seated, two-way overflow valves with inline connections.
These valves are mainly used in closed loop systems to ensure that a minimum flow is kept in the event that all connected consumers are in a low load condition or have simply shut down. In these scenarios, the valve will prevent problems such as pressure surges, pump cavitation and overheating.
The spring force keeps the valve closed, until the upstream pressure, which acts on the underside of the plug, exceeds the set pressure thus opening the valve and allowing flow to the downstream side. The set pressure is manually adjusted during commissioning by compression of the spring with the adjustment screw located on the top of the valve yoke.
The set pressure corresponds to the differential between upstream and downstream pressures across the valve.

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