Jacketed Safety Relief Valve

Name: Jacketed Safety Relief Valve
Brand: VTXFLOW

Steam-jacketed body prevents medium solidification.

Safety Valve Series

Jacketed Safety Relief Valve

A full steam jacket around body and bonnet keeps high-viscosity or crystallizing media — asphalt, sulphur, polymers — fluid at the valve, ensuring the disc always lifts freely at set pressure.

As part of the VTXFLOW safety valve range, every jacketed safety relief valve is produced under our certified quality system — from in-house casting and CNC precision machining to 100% pressure and seat-tightness testing before shipment, with EN 10204 3.1 material certificates supplied.

Full steam jacket prevents solidification
For asphalt, sulphur, polymer media
API 526 center-to-face maintained
Jacket rated PN16 steam

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Jacketed Safety Relief Valve — VTXFLOW Safety Valve Series

Technical Specifications

Size Range	3/4" – 12" inlet (DN20 – DN300)
Set Pressure	0.1 – 42 MPa
Body Materials	WCB, WC6, CF8, CF8M, A105
Design Standards	ASME BPVC Sec. I & VIII, API 526, API 527, GB/T 12243
Temperature Range	-196°C to +600°C

Typical Applications

Steam boilersPressure vesselsRefinery relief systemsGas storageHeat exchangers

How to Order — What to Specify

Inlet size and orifice designation (API 526)
Set pressure and allowable overpressure
Back pressure: constant or variable (bellows if needed)
Medium, temperature and required capacity
Body / trim materials
Bonnet type and lifting lever requirement
Code: ASME Sec I or Sec VIII
Options: jacket, gag, test certificate witness

Every jacketed safety relief valve is shell and seat tested to API 598 / ISO 5208 before shipment and delivered with EN 10204 3.1 material certificates. PMI, NDE and third-party inspection (SGS / BV) are available on request.

Other Safety Valve Products

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Interested in the jacketed safety relief valve? Tell us your size, pressure class, material, standard and quantity — our engineers respond within 24 hours.