Pilot Operated

A46 Pilot Operated Safety Valve (PN16/25/40)

ModelA46Y/F-16/25/40-C/P/R

A46Y/F-16/25/40-C/P/R

A46 Pilot Operated Safety Valve

Pilot operated safety valve for overpressure protection of pressure equipment, vessels and pipelines, with flanged connections and PN16/25/40 pressure ratings.

Product
A46 Pilot Operated Safety Valve
Family
Pilot Operated
Model
A46Y/F-16/25/40-C/P/R

Product Overview

Operating purpose and application context

Use

This newly designed pilot-operated safety relief valve is primarily used in the petroleum and natural gas, chemical, electric power, metallurgical, and city gas industries. It provides overpressure protection for pressure equipment, vessels, and pipelines. The design changes the direct action of the spring to indirect actuation through a guide valve, improving operating sensitivity. The main valve uses a sleeve piston and is characterized by high operating precision, good repeatability, high reseating pressure, zero leakage, discharge under high back pressure, stable and reliable operation, online calibration, and convenient operation and maintenance.

Technical Data

Operating and connection data

Only populated values from this Product record are displayed.

Pressure Range
PN16 / PN25 / PN40 (1.6 / 2.5 / 4.0 MPa)
Temperature Range
-196 ℃ ~ 200 ℃
Size Range
Inlet: DN25–DN200; Outlet: DN32–DN250
Connection Type
Flanged

Product Datasheet

Connection Dimension Table

Nominal diameters and corresponding connection dimensions.

Nominal Diameter Dimensions
DNDN″d0LL1Approx. H
253215115105385
255015115105385
324020115105385
405025121124390
506532124137405
508033124137405
658040162156425
8010050162156425
10012565210197455
10015065210197455
150200100241240490
200250125279276525

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Dimensions are reproduced from the supplied source table. The source does not state a unit; confirm the applicable drawing and units before publication or contractual use.

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