Item # B5333B-2PP, 5300 Series Relief Valves 400 to 10500 psig On Circle Valve Technologies Inc.

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Features

Zero leakage up to 95% of cracking pressure
No chatter or squeal
Positive reseal at a high percentage of cracking pressure
No pressure rise with increasing flow
Externally adjustable
PED certifications and CE marking available for most models

Note:
Proper filtration is recommended to prevent damage to sealing surfaces.
For PED applications, bodies are limited to a maximum temperature use of +100° F (+38° C)

Unit of Measure

Specifications | Reseal Pressure and Leakage | Safety

Specifications

Series	N/A 5300
Optional Variation	N/A 2000 psi maximum with liquids Gas service: Up to 3,024 psi: PCTFE poppet 3,024 psi and greater: Polyimide (Vespel®) poppet
Body Material¹	N/A Brass
O-Ring Material	N/A Neoprene
Valve Size	N/A 1/4 in
End Connections (Inlet/Outlet)	N/A Female NPT
Operating Pressure	N/A 400 to 10500 psig28 to 724 bar
Cracking Pressure	N/A 10 to 10500 psig
Cracking Pressure Tolerance	N/A ±5%
Operating Temperature	N/A -20 to 240 ºF
Special Characteristics	N/A Lockwire (optional)
Optional Body Material	N/A 316 Stainless Steel
Weight	N/A 1.8 lbs

Reseal Pressure and Leakage

N/A Cracking Pressure Tolerance: ±5%

Flow at cracking pressure:

Gas = 5cc/min

Teflon® seals = 0.02 scfm

Reseal pressure

Crack Pressure	Reseal Pressures
400-599 psi	80% of C.P.
600-899 psi	85% of C.P.
900-5999 psi	90% of C.P.
6000 psi & greater	95% of C.P.

Leakage at reseal pressure

Gas	Ascending pressure = zero to 95% of cracking pressure
	Descending pressure = zero at reseal
Liquid	Ascending pressure = 5cc/min maximum to 95% of cracking pressure
	Descending pressure = 15cc/min maximum at reseal

Safety

N/A For Your Safety
It is solely the responsibility of the system designer and user to select products suitable for their specific application requirements and to ensure proper installation, operation, and maintenance of these products. Material compatibility, product ratings and application details should be considered in the selection. Improper selection or use of products described herein can cause personal injury or property damage.

¹ For PED applications, bodies are limeted to a maximum temperature use of +100ºF (+38ºC).

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307 Derstine Ave, Suite 204 Lansdale, PA 19446 Phone: 267-933-6300 Fax: 267-933-6305 Toll Free: 800-645-6733 Email: [email protected]
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