Safety Shut-Off Valves
HON 721
HON 721 is a safety shut-off valve (SSV), direct-acting or pilot-operated, according to EN 14382. It is ideal for use at offtake and distribution stations as well as power plants and industrial facilities.
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- Compact design
- Easy to maintain due to exchangeable functional units (cartridge assembly)
- Four release options, standard design with manual release
- Optionally available design with actuator systems: K 10a, K 11a/1, K 11a/2, K 16, K 17
- Function Class A (B)
- Optionally with vent valve HON 915
- Suitable for non-aggressive gases, other gases on enquiry
- CE registration according to PED
- Max. admissible pressure PS: 50 bar
- Max. operating pressure pmax: up to 50 bar
- Outlet pressure range
- For over-pressure Wdso 50 mbar to 40 bar
- For under-pressure Wdsu 10 mbar to 40 bar
- Connection DIN flange PN 16, PN 25, PN 40 and Flange Class 150 and Class 300 according to ANSI 16.5 in DN 50 thru DN 150
- Response time t 0.1 s to 0.3 s
- Additional features (as requested by customer)
- Electromagnetic release (by current supply)
- Electric signal sensor for valve position 'closed' (proximity switch)
Applications & Compatibility
- Applications
- Safety shut-off valve for gas pressure regulating stations, Natural gas (DVGW G 260) and other gases on request
Environmental Conditions
- Temperature Range
- -20 to +60 deg C (Class 2)
- Outlet Pressure Range
- For over-pressure Wdso 50 mbar to 40 bar; For under-pressure Wdsu 10 mbar to 40 bar
I/O Capabilities
- Response Time
- 0.1 to 0.3 sec millisecond
Technical Specifications
- Maximum Inlet Pressure Rating
- 50 bar (depending on connections)
- Connection Type
- Flanged to DIN PN 16, PN 25, PN 40, ANSI 150 RF, ANSI 300 RF
Standards & Certifications
- Explosion Protection
- No potential ignition sources (ATEX 95 not applicable), applied electronic accessories comply with ATEX requirements
- Approvals
- CE Mark with PED
Communication & Protocols
- Control Devices
- K10a, K12, K13, K15a, K16, K17
Material Specifications
- Body Material
- Ductile Iron, Cast Steel
Applications & Compatibility
- Applications
- Safety shut-off valve for gas pressure regulating stations, Natural gas (DVGW G 260) and other gases on request
Environmental Conditions
- Temperature Range
- -20 to +60 deg C (Class 2)
- Outlet Pressure Range
- For over-pressure Wdso 50 mbar to 40 bar; For under-pressure Wdsu 10 mbar to 40 bar
I/O Capabilities
- Response Time
- 0.1 to 0.3 sec millisecond
Technical Specifications
- Maximum Inlet Pressure Rating
- 50 bar (depending on connections)
- Connection Type
- Flanged to DIN PN 16, PN 25, PN 40, ANSI 150 RF, ANSI 300 RF
Standards & Certifications
- Explosion Protection
- No potential ignition sources (ATEX 95 not applicable), applied electronic accessories comply with ATEX requirements
- Approvals
- CE Mark with PED
Communication & Protocols
- Control Devices
- K10a, K12, K13, K15a, K16, K17
Material Specifications
- Body Material
- Ductile Iron, Cast Steel
- Applications : Safety shut-off valve for gas pressure regulating stations, Natural gas (DVGW G 260) and other gases on request
- Temperature Range : -20 to +60 deg C (Class 2)
- Response Time : 0.1 to 0.3 sec millisecond
- Outlet Pressure Range : For over-pressure Wdso 50 mbar to 40 bar; For under-pressure Wdsu 10 mbar to 40 bar
- Maximum Inlet Pressure Rating : 50 bar (depending on connections)
- Explosion Protection : No potential ignition sources (ATEX 95 not applicable), applied electronic accessories comply with ATEX requirements
- Control Devices : K10a, K12, K13, K15a, K16, K17
- Connection Type : Flanged to DIN PN 16, PN 25, PN 40, ANSI 150 RF, ANSI 300 RF
- Body Material : Ductile Iron, Cast Steel
- Approvals : CE Mark with PED
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