Safety Valve - Stainless Steel - Thread Connections SV451
The SV451 is a spring-loaded safety valve in stainless steel with a closed spring housing and serrated nut for lifting the valve. For steam, a safety valve with a PTFE (max. 225C) seal is used as standard.
This safety valve is used for:
- Pressurized tanks and systems for neutral/non-neutral liquids and gases.
- Steam boilers and steam installations.
Available Types:- SV451S: Standard, without gastight cap. For neutral media without back pressure.
- SV451B: With bellows. For neutral and non-neutral media with a back pressure up to 4 bar eff. The spring and internal parts are shielded from the medium.
- SV451T: Gastight version. For neutral and non-neutral media without back pressure. The environment is protected from the medium. Only available without a lever. This version is not available for inlet/outlet 15/15 and 20/20.
- SV451TB: Gastight version with bellows, double gastight. For flammable, toxic, and hazardous media with a back pressure up to 4 bar eff. The spring and internal parts are shielded from the medium.
Standards and Approvals:
In compliance with the European Pressure Equipment Directive (PED) and bears the CE mark. TÜV approved according to AD-Merkblatt A2, TRD421, TRB801 No.22 and 23. Also complies with the GOST-R directive. DIN EN ISO 4126-1 and PED 97/23/EC.
Type Approval:
Lloyds Register EMEA (LR EMEA) GL ABS DNV BV.
Pressure and Temperature Limits:
Temperature:
-60C to 400C depending on the type.
Pressure: 0.5 bar eff. 70 bar eff.
Capacities:
see datasheet
