fuel delivery accessories
Non-return gas valves GRS, GRSF
Non-return gas valve to prevent gas creepage or surge, for gas, air and oxygen.
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Overview
Non-return gas valve to prevent gas creepage or surge, for gas, air and oxygen.
Features & Benefits:
Features & Benefits:
- GRS: not flame-arresting
- GRSF: with sinter bronze flame arrester, so flame-arresting in the case of use with combustion air
- DN: 15 to 80
- Connection: thread or flange
- pu: max. 100 mbar or 5 bar
Specifications
Overview
- Design
- Robust
- Product Type
- GRS: Non-return gas valve
- GRSF: Non-return gas valve with flame arrester
Pressure Specifications
- Opening Pressure Range
- Low
- Inlet Pressure Range
- GRS: Up to 25 bar (DN 15-25), up to 20 bar (DN 40-50), up to 10 bar (DN 80)
- GRSF: Up to 5 bar (DN 15-50)
Connections & Interfaces
- Pipe Connection Type
- Rp Internal Thread (R), Flange to ISO 7005 (F)
Operating/Process Temperature Ranges
- Medium Temperature
- GRS: -20 to +70 deg C (GRS 15-50/GRSF 15-50); -20 to +50 deg C with oxygen
- GRSF: -20 to +70 deg C (GRSF 15-50); -20 to +50 deg C with oxygen
Ignition, Flame & Supervision Specifications
- Flame Arresting
- GRS: No (must be used with additional safety device for flashback protection)
- GRSF: Yes (stops flashbacks and prevents gas return after flashback)
Dimensions & Size Specifications
- Nominal Sizes
- GRS: DN 15, 20, 25, 40, 50, 80
- GRSF: DN 15, 20, 25, 40, 50
Standards & Certifications
- Approvals
- DIN-DVGW tested and registered; EU Pressure Equipment Directive compliant, Internal Thread to ISO 7-1, PN 16 flange to ISO 7005
Material Specifications
- Material
- Brass
Fuel, Gas & Media Specifications
- Gas Type
- GRS: Town/district gas, hydrogen, natural gas, propane, purified biogas, nitrogen, inert gases, compressed air, oxygen
- GRSF: Town/district gas, natural gas, propane, compressed air
Applications & Compatibility
- Purpose
- GRS: Prevents reverse gas flow, surges, and creeping
- GRSF: Prevents reverse gas flow and flashbacks of combustion gas-air mixtures
Overview
- Design
- Robust
- Product Type
- GRS: Non-return gas valve
- GRSF: Non-return gas valve with flame arrester
Pressure Specifications
- Opening Pressure Range
- Low
- Inlet Pressure Range
- GRS: Up to 25 bar (DN 15-25), up to 20 bar (DN 40-50), up to 10 bar (DN 80)
- GRSF: Up to 5 bar (DN 15-50)
Connections & Interfaces
- Pipe Connection Type
- Rp Internal Thread (R), Flange to ISO 7005 (F)
Operating/Process Temperature Ranges
- Medium Temperature
- GRS: -20 to +70 deg C (GRS 15-50/GRSF 15-50); -20 to +50 deg C with oxygen
- GRSF: -20 to +70 deg C (GRSF 15-50); -20 to +50 deg C with oxygen
Ignition, Flame & Supervision Specifications
- Flame Arresting
- GRS: No (must be used with additional safety device for flashback protection)
- GRSF: Yes (stops flashbacks and prevents gas return after flashback)
Dimensions & Size Specifications
- Nominal Sizes
- GRS: DN 15, 20, 25, 40, 50, 80
- GRSF: DN 15, 20, 25, 40, 50
Standards & Certifications
- Approvals
- DIN-DVGW tested and registered; EU Pressure Equipment Directive compliant, Internal Thread to ISO 7-1, PN 16 flange to ISO 7005
Material Specifications
- Material
- Brass
Fuel, Gas & Media Specifications
- Gas Type
- GRS: Town/district gas, hydrogen, natural gas, propane, purified biogas, nitrogen, inert gases, compressed air, oxygen
- GRSF: Town/district gas, natural gas, propane, compressed air
Applications & Compatibility
- Purpose
- GRS: Prevents reverse gas flow, surges, and creeping
- GRSF: Prevents reverse gas flow and flashbacks of combustion gas-air mixtures
- Design : Robust
- Opening Pressure Range : Low
- Pipe Connection Type : Rp Internal Thread (R), Flange to ISO 7005 (F)
- Inlet Pressure Range : GRS: Up to 25 bar (DN 15-25), up to 20 bar (DN 40-50), up to 10 bar (DN 80)|GRSF: Up to 5 bar (DN 15-50)
- Medium Temperature : GRS: -20 to +70 deg C (GRS 15-50/GRSF 15-50); -20 to +50 deg C with oxygen|GRSF: -20 to +70 deg C (GRSF 15-50); -20 to +50 deg C with oxygen
- Flame Arresting : GRS: No (must be used with additional safety device for flashback protection)|GRSF: Yes (stops flashbacks and prevents gas return after flashback)
- Nominal Sizes : GRS: DN 15, 20, 25, 40, 50, 80|GRSF: DN 15, 20, 25, 40, 50
- Product Type : GRS: Non-return gas valve|GRSF: Non-return gas valve with flame arrester
- Approvals : DIN-DVGW tested and registered; EU Pressure Equipment Directive compliant, Internal Thread to ISO 7-1, PN 16 flange to ISO 7005
- Material : Brass
- Gas Type : GRS: Town/district gas, hydrogen, natural gas, propane, purified biogas, nitrogen, inert gases, compressed air, oxygen|GRSF: Town/district gas, natural gas, propane, compressed air
- Purpose : GRS: Prevents reverse gas flow, surges, and creeping|GRSF: Prevents reverse gas flow and flashbacks of combustion gas-air mixtures
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03150667
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03150667
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GRS 40R
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GRS 40R
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GRS 50R
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GRS 50R
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GRSF 15R
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GRSF 20R
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GRSF 20R
