Product Introduction

Jacket Relief Valve is applicable in occasions where the heat preservation of fluid is needed, like the equipment of polyester, ethylene, urea, etc. It achieves excellent heat preservation function on both its inlet and out let flanges. You can also choose it to be vapor flushing, blowing or not. Both its surface of the disc and the nozzle seat are coated with stellite, ensuring excellent flatness and high finish.

Features

Jacket Relief Valve applies balanced bellows construction which well protects set pressure from being affected by variable back pressure. This valve has high degree of seat tightness and long, durable use life. It has high sensitivity, because the spool surface to control the opening is tapered, when the spool is moved slightly in the axial direction, it can have a large opening.

Product Range:

Size: 2”-12”, DN50-DN300

Inlet Flange Pressure: 150Lb-2500LB

Available Material WCB, WC6, WC9, C12A

Specifications:

ISO 4126-1 : Safety Devices for Protection Against Excessive Pressure Part 1: Safety Valves

API STD 526 : Flanged Steel Pressure Relief Valves

API STD 527: Seat Tightness of Pressure Relief Valves

ASME, Boiler and Pressure Vessel Code,Section VⅢ Division 1,Rules for Construction of Pressure Vessels