Pilot Operated
Modulating - Pop Action
Pilot operated pressure relief valve is a pressure relief valve in which the major relieving device or main valve is combined with and controlled by a self-actuated auxiliary pressure relief valve(pilot).
Pilot operated safety relief valve is designed to open at a predetermined pressure and protect a vessel or system from excess pressure by removing or relieving fluid from that vessel or system.
This type of safety valve meet all the requirement of ASME SECIII, API 520, API 521, API 526 such as orifice area, sizing procedure, dimension, pressure rate, flange connection size.
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Technical Info
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Metric Unit
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US Unit
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Type
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Pop action-Modulate acting
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Pop action-Modulate acting
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Inlet size range
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DN 25-DN 200
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1"-8"
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Outlet size range
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DN 50-DN 250
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2"-10"
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Connection STD
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DIN 1092-1
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ASME B16.5
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Inlet Flange Rating
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PN 20-PN 420
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CL 150-CL 2500
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Orifice Letter
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D-T
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D-T
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Pressure range
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Acc. To API 526
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Acc. To API 526
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Temperature Range
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Acc. To API 526
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Acc. To API 526
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Body Material
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SA 216 WCB, SA 351 CF8M, SA 217 WC6, SA 352 LCB, SA 351 CF3M
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Spring Material
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AISI 302, AISI 316, Inconel, DIN 1.8159
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Seat types
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Soft Seat
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Seat Materials
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Soft Sealing : NBR Soft Sealing : Viton Soft Sealing : Kalrez
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Test Gag
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Applicable
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Back Flow Preventer
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Applicable
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Heating jacket
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Applicable
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