5300 Series Relief Valve

Cracking Pressures from 400 to 10,500 psig

Features:

	Zero leakage, dead tight seal well above 95% of cracking pressure
	Positive reseal at a high percentage of cracking pressure
	No pressure rise with increasing flow

Specifications:

Materials of Construction:

Body: Brass, 303SS or 316SS

O-rings: Buna-N, Neoprene and Viton® (others upon request)

Poppet:

	CRES 440C (liquid service)
	Kel-F (gas service to 3074 psig)
	Polyimide (gas service above 3074 psig)

Retainer, Stem: 303SS

Seat: 17-4pH stainless steel

Spring: 17-7pH stainless steel

Backup rings: Teflon

Pressure Ratings:

Operating Pressure: 400 to 10,500 psig (28 to 724 bar)

Burst pressure:

	>30,000 psig (Brass)
	>40,000 psig (stainless steel)

Temperature range: -20°F to +350°F (-29°C to +175°C), based on o-ring material

Valve sizes: 1/4" & 1/2"

How It Works

Teflon® and Tefzel® are registered trademarks of Dupont. Viton® and Kalrez® are registered trademarks of Dupont Dow Elastomers.

This page last updated: Wednesday, January 28, 2004
Information in this document is subject to change without notice.
Other products and companies referred to herein are trademarks or registered trademarks of their respective companies or mark holders.