Safety Valve | Pop Type
SERIES # 002
Harshad Engineering Works (HEW) is one of the leading manufacturers of Safety Valve in India.
Design Features
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Safety Valve Manufacture in Accordance with Requirement of ASME Pressure Vessel Code under Section VIII Division I & ISO 4126 Part 1.
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High Capacity & Low Blow Down.
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Full Nozzle & Single Trim Design.
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Maximum Corrosion Resistance.
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Atmospheric Discharge Design.
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Zero Maintenance.
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Direct Spring Operated & Pop Type action.
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Metal to Metal Seat lapped for Optical Seat Flatness for Zero leakage.
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Best Use in Air Compressors, Pressure Vessel & Vacuum Machines.
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CE Certified under Category IV Module H (2014/68/EU).
Technical Detail
| Inlet Size | 1/2" to 4" |
| Outlet Size | Free (Atmospheric Discharge) |
| Set Pressure Range | 0.5 barg to 19 barg |
| End Connection | Thread End (BSP, BSPT & NPT) |
| Temperature Range | -20°C to 300°C |
| Orifice Area | “D” to “Q” |
| Body | Cast Steel, Gun Metal, Stainless Steel |
| Internal Parts (Nozzle & Disc) | Gun Metal, Stainless Steel |
| Spring | Spring Steel (IS 4454), Stainless Steel (SS302) |
| Seat | Metal Seat |
| Application / Medium | Air, Nitrogen Gas, Steam |
| Applicable Code & Std | API 520, API 527, ASME 16.34, EN ISO 4126 Part 1, ASME Sec.VIII PTC-25 |
Technical Data
Size
½” to 4”
End Connection
Thread Connection
(BSP, BSPT, NPT, etc.)
Set Pressure Range
0.5 Barg to 19 Barg
Temperature Range
-20*C to 300*C
Application
Air or Non Poisonous, Non Flammable, Non Toxic, Non Corrosive Gas.
Applicable Std
API 520, API 527, EN ISO 4126 Part.1, ASME Section VIII Div. I, etc.
