Kromschroder Gas relief safety valve VSBV 25TN40-0 84583070

SKU 84583070 Model VSBV 25TN40-0 Brand Kromschroder

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Key specifications

Nominal diameter (DN)25 mm
Max. inlet pressure4000 mbar
Connection threadRp 1"
Maximum working pressure4 bar
Operating positionupright
Valve typerelief safety valve
Compliance standardEuropean safety standards
Country of originGermany
CertificationEuropean safety standards
Setting range20–500 mbar
all specifications (10) ↓
1155.04 EUR
1050.04EUR
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Description

This relief safety valve is designed for gas systems to protect against overpressure. It has a nominal diameter of 25 mm and a Rp 1" connection thread. The valve operates within a pressure range of 20 to 500 mbar and has a maximum working pressure of 4 bar. It is suitable for upright installation and is manufactured in Germany. The valve complies with European safety standards.

Further details

Maintenance requirementPeriodic inspection recommended to verify seat is clean and valve opens at correct pressure without leaking
Operating principleAutomatically relieves excess pressure from fast-closing solenoid valves or gas creep from pressure regulators
Protection functionProtects burner control, gas valve, and other components from overpressure
Purposerelief of short-term pressure surges and gas creep
Purposerelief of short-term pressure surges and gas creep

Choosing and fitting

Relief safety valves of this kind are chosen by set pressure, connection size, and body material; the set pressure may be adjustable or factory-set and is usually stated on the label. Before ordering, confirm the connection thread and the pressure setting from the existing valve. Install the valve upright, and route the vent line safely outdoors in accordance with applicable standards. The valve is not a shut-off or metering device; it acts independently of the burner control.

Signs of failure

Typical failure involves contamination on the seat causing leakage, or the valve opening at an incorrect pressure. This may be noticed as gas odor or unstable downstream pressure. Regular inspection should confirm the seat is clean and the valve opens at the correct pressure without leaking.

All specifications

Nominal diameter (DN)25 mm
Max. inlet pressure4000 mbar
Connection threadRp 1"
Maximum working pressure4 bar
Operating positionupright
Valve typerelief safety valve
Compliance standardEuropean safety standards
Country of originGermany
CertificationEuropean safety standards
Setting range20–500 mbar

Part numbers

SKU84583070
Additional article624.334.025
ModelVSBV 25TN40-0