The Series 424 Valve is perfect for use as a liquid dump valve on high pressure separators. The trim and seat are total immersed in the fluid to prevent freeze-ups. The Series 424 Valve can be used in any other pressure vessel where freeze-ups could be a problem.

Features and Benefits

• Non-Freeze Construction - Prevents freeze-up at the plug and seat.
• Hammer Union Construction - Reduced downtime for repair.
• Replaceable Trim - Reduces cost.

Standard Specifications

Body Material
Low Carbon Steel

End Connections
Vessel 2” MNPT
Inlet Tube 1” FNPT
Outlet 1” FNPT

Body Cover
Steel Union

Diaphragm Operator
Steel, 65 sq. in.
Nylon Reinforced Buna N Diaphragm,

Maximum Recommended Operating Pressure 70 psi
Maximum Containment Pressure 100 psi

Packing
Non-Lubricated Buna N

Maximum Working Pressure
3000 psi

Temperature Limits
-20°F to 250°F

Stem Material
303 Stainless Steel

Plug and Seat
See Schedule Below

Trim Characteristics

 Please click on the following table for a larger view of ordering information.

General Notes:

1. Standard topworks is direct action normally closed.

2. Cv values are for fully open inner valve.

3. Part numbers applicable only when valve desired is exactly as described above.

4. To order specify Model Number, Part Number, Trim Description.

5. See attached pdf on the side  of this page for parts list.