945 Pressure & Vacuum Tank Vents

Performance Features

Suitable for normal pressure and vacuum relief
Complies with API 2000 Seventh Edition / EN ISO 28300
Certified to ATEX – Directive 2014/34/EU and EN ISO 16852:2016
Weight-loaded offset pallet design; discharges to outlet pipe (guidance is internal to the valve body protecting from freeze-up during inclement weather)
Achieves full open (flowing pressure/vacuum) at just 10% overpressure. Other overpressure settings available on request.
Provides premium sealing with FEP diaphragms (metal-to-metal available for special requirements or higher settings)
Leakage rates much tighter than API 2000/EN ISO 28300 requirements
Weather-hood and screen protect pallets/seats from environment and contamination
Pallets, seats & stem-guides made from stainless steel
Pipeaway design prevents emission losses
Available in nom. diameter 2” – 12”

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Specification Options
Materials
Documentation

Protection

• Gas/air or vapour/air mixtures II 1/2 G Ex h IIBT1...T6 Ga/Gb

Connection Type

EN or DIN: ISO 7005-1
JIS B 2220
ASME B16.5

Compliance with Guidelines

Guideline 2014 / 34 / EU
EN ISO 28300
API Standard 2000 7th Edition

Materials of Construction

	Stainless Steel	Aluminum	Carbon Steel	FEP	Other Materials on request
Diaphragm	✓			✓	✓
Valve Set/Pallet	✓				✓
Valve Seat	✓				✓
Body	✓	✓	✓		✓

Dimensions

in	in	in	in
DN	A	B	C*

Product Literature

Vent-Saf™ Explosion Panels Brochure

Understanding NFPA 654 Brochure

Explosion Protection: Chemical Isolation Systems

An isolation System provides protection to interconnected equipment in the event of an explosion hazard.

Industrial Explosion Protection Brochure

An introduction to Industrial Explosion Protection and Prevention including information on venting, suppression, spark detection, isolation and testing.

Pressure and Vacuum Relief Valve