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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 can be used to handle overpressure situations that the standard vent of the storage tank cannot cope with. Its discharge capacity complies with API2000 standards and is sufficient to meet the emergency emptying requirements caused by fire. 

The 7300 zero-leakage emergency relief valve is a pressure emergency relief valve without suction function. When the pressure inside the storage tank rises to the set pressure, the bent pin becomes unstable and bends sideways, and the valve disc is pushed off the valve seat by the medium to open and relieve pressure.

Specifications

Setting range
ModelSizePressure 
730016”(DN400)、20”(DN 500)、24”(DN 600)15 ~ 100KPa
(150 ~ 1000mbar)
Material
SeatBucking PinDiscSealing
Clamping Plate
304 
316 
Special alloy

304

316

Nitrile Rubber

Fluorocarbon Rubber

Carbon Steel
304
316

 Model Rules

Model
A
Size
In(mm)
D1
Length
mm

H1

Height
mm
730016(400)585variable value
20(500)670variable value
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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