Fisher
Fisher H800 Relief Valves
Product Code:H800
Description
Fisher™ Type H800 Relief Valves
Km: 0.79Maximum Allowable Inlet (Relief) Pressure250 psig / 17.2 barRelief Pressure RangeNon-adjustable, start-to-discharge between 39 to 44 psig / 2.7 to 3.0 barReseat Pressure35 psig / 2.4 bar or higherTemperature Capabilities-20 to 150°F / -29 to 66°CApproximate Weight5 ounces / 140 gramsAdditional Technical DataFor additional technical information, contact your local Sales Office or refer to technical documentation.
Type H800 relief valve is a compact, lightweight, direct-operated relief valve. It is used primarily between a pneumatic instrument and its supply pressure regulator to limit the instrument supply pressure to 50 psig / 3,4 bar should the supply pressure regulator fail open.
FeaturesApplication DependabilityEasy InstallationEconomicalTamper-ResistantSpecificationsBody Size and End Connection Style1/4 NPTFlow CoefficientWide-Open Cg: 55Km: 0.79Maximum Allowable Inlet (Relief) Pressure250 psig / 17.2 barRelief Pressure RangeNon-adjustable, start-to-discharge between 39 to 44 psig / 2.7 to 3.0 barReseat Pressure35 psig / 2.4 bar or higherTemperature Capabilities-20 to 150°F / -29 to 66°CApproximate Weight5 ounces / 140 gramsAdditional Technical DataFor additional technical information, contact your local Sales Office or refer to technical documentation.
Technical Specifications
Fisher™ Type H800 Relief Valves
Features
- Application Dependability
- Easy Installation
- Economical
- Tamper-Resistant
Specifications
- Body Size and End Connection Style
- 1/4 NPT
- Flow Coefficient
- Wide-Open Cg: 55
Km: 0.79
- Maximum Allowable Inlet (Relief) Pressure
- 250 psig / 17.2 bar
- Relief Pressure Range
- Non-adjustable, start-to-discharge between 39 to 44 psig / 2.7 to 3.0 bar
- Reseat Pressure
- 35 psig / 2.4 bar or higher
- Temperature Capabilities
- -20 to 150°F / -29 to 66°C
- Approximate Weight
- 5 ounces / 140 grams
- Additional Technical Data
- For additional technical information, contact your local Sales Office or refer to technical documentation.