7200 Pressure/Vacuum Emergency Relief Valve

Product Overview

7200 Pressure/Vacuum Emergency Relief Valve is used to handle overpressure and vacuum condition that cannot be handled by standard tank venting hole. The discharge capacity meets API2000 standard which is sufficient to meet the emergency discharge needs caused by fires; High airflow can be provided when the medium is urgently evacuated. This type of relief valve can be used as an inlet and outlet for tank inspection and maintenance. When the tank pressure rises to the set pressure, the hinged cover opens to release the overpressure, and the hinged cover resets after the overpressure dissipates. The hinge mechanism ensures accurate resetting of the hinge cover. When the vacuum accumulation in the tank is
excessive, the spring-type trim is lifted, the seal between the seat and the trim is broken, the accumulated vacuum is released, and the vacuum valve re-maintains the seal after the release.

Certifications

BasCo emergency relief valves are designed and manufactured strictly in accordance with international and domestic standards such as API2000, ISO28300, GB/T, and have obtained qualification certifications such as EAC, DNV, and explosion-proof certificates.

Specifications

Setting range

Model	Size	Pressure	Vacuum
7210	16"(DN400), 20"(DN 500), 24"(DN 600)	0.6～ 3.4KPa (6～ 34mbar)	0.2 ～ 1.7KPa (2 ～ 17mbar)
7220	16"(DN400), 20"(DN 500), 24"(DN 600)	3.4～ 100KPa (34 ～ 1000mbar)	0.2～ 1.7KPa (2 ～ 17mbar)

Model Rules

Item	Series		Connection dimensions Size (DN)		Body Material	Disc/Seat Material	Diaphragm Material		Pressure/Vacuum		Option
e.g.	7210	-	500	-	6	6	1	-	1.8KPa/-0.3KPa	-	J
Content	7210 7220		400 500 600		4 304 6 316L C C.S D 2205 Q Other	4 304 6 316L D 2205 Q Other	1 FEP 2 PFA 3 FKM 4 FFKM Q Other		KPa KPa mbar mbar InH₂O InH₂O		J Heat tracing jacket T Teflon coating Q Other

Key Parameters

Model	A Connection Size In(mm)	D1 Length mm	D2 Length mm	H1 Height mm	H2 Height mm
7200	16(400)	840	888	365	695
	20(500)	900	986	387	695
	24(600)	1010	1085	400	695

* Unit weights, indicating the net weight (in kilograms) of the valve at the standard set pressure (2mba pressure -2mbar vacuum), excluding the weight of the transport box. The total shipping weight needs to be increased by 20% (domestic only). Parameter content is for reference only, more requirements please contact us.

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7200 Pressure/Vacuum Emergency Relief Valve

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