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DIN version 44-8 Safety excess pressure valve Suitable for liquids, air and nitrogen up to 150 °C
The Type 44-8 Safety Excess Pressure Valve (SEV) is designed with an actuator with two diaphragms.
The version with two independent operating diaphragm complies with AGFW
(German District Heating Association) regulations concerning components in district heating systems.
This regulator version continues to operate even after the operating diaphragm ruptures.
In the event of a ruptured operating diaphragm in the actuator, the Type 44-8 (SEV) continues to operate.
An indicator at the actuator shows that the actuator is damaged when the upstream pressure rises above 1.5 bar.
Special features
• Suitable for water and other liquids, provided these do not cause the materials used to corrode.
• Single-seated valve with balanced plug
• Type 44-8 (SEV) continues to operate in the event of an operating diaphragm rupture.
• The regulators comply with requirements of FW 506 published by AGFW (German District Heating Association).
Type 44-8 Safety Excess Pressure Valve (SEV) with two operating diaphragms
· Set point ranges from 2 to 11 bar
· In the event of a ruptured operating diaphragm in the actuator, the regulator continues to operate.
· Typetested according to AGFW document FW 506
| Product name | DIN version 44-8 Safety excess pressure valve Suitable for liquids, air and nitrogen up to 150 °C |
| Model | 44-8 - DIN |
| Matrial | Alloy/Steel |
| Supply | electric |
| Usage | Pressure control |
| Version | DIN |
| Valve size | DN 15 to DN 50 |
| Pressure rating | PN 25 |
| Function | Safety excess pressure valve |
| Medium | Water and other liquids Air and non-flammable gases |
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