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7300 Zero-Leakage Emergency Relief Valve

Genuine zero leakage is achieved before the valve opens.

All components are field-replaceable.

The valve reaches the full lift height the instant it opens.

Suitable for corrosive operating conditions.

The buckling pin remains within the elastic deformation range prior to instability, rendering it less susceptible to fatigue.

Compatible with flanges conforming to ANSI, DIN and HG/T20592 - 20635-2009 standards.

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7300 Zero-Leakage Emergency Relief Valve

Product Overview

The 7300 Zero-Leakage Emergency Relief Valve is designed to handle overpressure conditions that exceed the capacity of standard vents on storage tanks. Its relief capacity meets API 2000 standards, which is fully sufficient to meet the emergency venting requirements resulting from fires.

As a pressure emergency relief valve, the 7300 Zero-Leakage Emergency Relief Valve has no vacuum capability. When the internal pressure of the storage tank rises to the set pressure, the buckling pin loses stability and bends laterally. Driven by the medium, the valve disc detaches from the valve seat to realize opening and pressure relief.


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
7300 16”(DN400) 22 ~ 100KPa(220 ~ 1000mbar)
20”(DN 500)
16 ~ 100KPa(160 ~ 1000mbar)
24”(DN 600)
10 ~ 100KPa(100 ~ 1000mbar)
Model Rules
Item Series Connection dimensions
(DN)
Body Material Disc/Seat Material Diaphragm Material Pressure Option
e.g. 7310 - 500 - 6 6 1 - 1.8KPa - J
Content 7310 400
500
600
4 304
6 316L
C C.S
D 2205
Q Other
4 304
6 316L
D 2205
Q Other
3 FKM
4 FFKM
5 EPDM
Q Other
KPa
mbar
InH₂O
J Heat tracing jacket
T Teflon coating
Q Other

Key Parameter List

Model

Size In

(mm)

Length 

mm

Height 

mm

7300 16(400) 585 Variable Value
20(500) 670
24(600) 780
* Unit weight, 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.

Downloads

  • 7300 Zero-Leakage Emergency Relief Valve
    7300 Zero-Leakage Emergency Relief Valve
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