Product Catalog
Browse HHSV safety and pressure-relief valve families, compare available products and open the technical product record.
Spring Loaded
Model A21H-16/25/40/64/100-C; A21W-16/25/40/64/100-P/R; A21F-16/25/40-C/P/R
Spring loaded low lift safety valve with external thread connections for overpressure protection of equipment and pipelines. Available in DN15–DN25, with pressure, temperature and material options depending on…
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Model A37H-16/25/40-C; A38Y-16/25/40-C; A43H-16/25/40-C
Duplex spring safety valve assembly with two safety valves of the same model and size mounted on a Y-type joint. Designed for steam and air overpressure protection at…
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Model A41H-16/25/40-C/P/R
Spring loaded low lift safety valve with a closed design and flanged connections for equipment and pipeline overpressure protection. Available in PN16, PN25 and PN40, with nominal sizes…
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Model A41Y-64/100-C/P/R
Spring loaded low lift safety valve with a closed design and flanged connections for equipment and pipeline overpressure protection. Available in PN64 and PN100, with nominal sizes from…
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Model A42Y-16/25/40-C/P/R
Spring loaded full lift safety valve with a closed design and flanged connections for equipment and pipeline overpressure protection. Available in PN16, PN25 and PN40 with inlet sizes…
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Model A42Y-64/100-C/P/R
Spring loaded full lift safety valve with a closed design and flanged connections for equipment and pipeline overpressure protection. Available in PN64 and PN100 with inlet sizes from…
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Model A44Y-16/25/40-C/P/R
Spring loaded full lift enclosed safety valve with a spanner and flanged connections for overpressure protection. Available in PN16, PN25 and PN40 with inlet sizes from DN20 to…
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Model A44Y-64/100-C/P/R
Spring loaded full lift enclosed safety valve with a spanner and flanged connections for overpressure protection. Available in PN64 and PN100 with inlet sizes from DN20 to DN150,…
View ProductPilot Operated
Model A46Y/F-16/25/40-C/P/R
Pilot operated safety valve for overpressure protection of pressure equipment, vessels and pipelines, with flanged connections and PN16/25/40 pressure ratings.
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Model A46Y/F-64/100/160-C/P/R
Pilot operated safety valve for overpressure protection of pressure equipment, vessels and pipelines, with flanged connections and PN64/100/160 pressure ratings.
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Model A47H-16/25/40-C
Spring loaded low lift safety valve with a spanner and flanged connections for steam and air service. Designed for equipment and pipeline overpressure protection at temperatures up to…
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Model A47Y-64/100-C
Spring loaded low lift safety valve with a spanner and flanged connections for steam and air service. Designed for equipment and pipeline overpressure protection at temperatures up to…
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Model A48Y-16/25/40-C
Spring loaded full lift safety valve with a spanner and flanged connections for steam and air service. Designed for equipment and pipeline overpressure protection at temperatures up to…
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Model A48Y-64/100-C
Spring loaded full lift safety valve with a spanner and flanged connections for steam and air service. Designed for equipment and pipeline overpressure protection at temperatures up to…
View ProductImpulse Main
Model A49H-40
Main safety valve operated by an impulse safety valve for overpressure protection of power plant boilers, pressure vessels, and pressure and temperature reducing equipment. PN40 with flanged connections.
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Model AH42F-16/25/40-C
Safety reflux valve for overpressure protection of liquid-phase return lines at LPG station pump outlets, with flanged connections and PN16/25/40 pressure ratings.
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Model AHN42F-P18
Parallel safety reflux valve for overpressure protection of liquid-phase return lines at LPG station pump outlets, with flanged connections and sizes from DN40 to DN150.
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Model AQ-20
Safety valve for air compressors handling air at temperatures up to 200°C. It opens automatically when pressure exceeds the allowable value and closes as pressure falls to the…
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Model GA49H-4.0 DN25
DN25 impulse safety valve for use with an A49H-40 main safety valve, providing overpressure protection for power plant boilers, pressure vessels, and pressure and temperature reducing equipment.
View ProductVacuum Valve
Model HFA72W-10-P/R
HFA72W-10P/R vacuum safety valve for automatic air admission and vessel protection against excessive negative pressure.
View ProductApplication Review
Send the medium, set and operating pressure, temperature, required capacity, backpressure, connections, materials and certification requirements.
