Douglas Chero

  • Località Pradaglie - 29013 Carpaneto Piacentino (Piacenza) - Italy
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CHECK VALVES

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Non-return valves designed in accordance with API 602, API 600, and ASME B16.34 standards, and customized to meet customer requirements.

Available in various configurations (piston, ball, swing, standard, cryogenic, high-temperature, and pressure seal), patterns (T-pattern, Y-pattern), and materials, these valves are precision-machined to match pipeline conditions, including face-to-face dimensions, end connections, sealing components, body/bonnet joints, and insulation.

Standard BALL&PISTON CHECK VALVES – 800/4500 – Bolted bonnet – SW/NPT/BW

Standard BALL&PISTON CHECK VALVES – 800/4500 – Bolted bonnet – SW/NPT/BW

Check valve, bolted bonnet, standard configuration, weldable/threaded ends, reduced/full bore, spring assisted and not...
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Standard BALL&PISTON CHECK VALVES – 150/4500 – Bolted bonnet – RF/RTJ/FF

Standard BALL&PISTON CHECK VALVES – 150/4500 – Bolted bonnet – RF/RTJ/FF

Check valve, bolted bonnet, standard configuration, flanged ends, reduced/full bore, spring assisted and not...
Read More
Standard BALL&PISTON CHECK VALVES – 800/4500 – Welded bonnet – SW/NPT/BW

Standard BALL&PISTON CHECK VALVES – 800/4500 – Welded bonnet – SW/NPT/BW

Check valve, welded bonnet, standard configuration, weldable/threaded ends, reduced/full bore, spring assisted and not...
Read More
Standard BALL&PISTON CHECK VALVES – 150/4500 – Welded bonnet – RF/RTJ/FF

Standard BALL&PISTON CHECK VALVES – 150/4500 – Welded bonnet – RF/RTJ/FF

Check valve, welded bonnet, standard configuration, flanged ends, reduced/full bore, spring assisted and not...
Read More
Standard BALL&PISTON CHECK VALVES – 900/4500 – Pressure seal bonnet – SW/NPT/BW

Standard BALL&PISTON CHECK VALVES – 900/4500 – Pressure seal bonnet – SW/NPT/BW

Check valve, pressure seal bonnet, standardl configuration for high pressure service, weldable/threaded ends, full bore, spring assisted and not...
Read More
Standard BALL&PISTON CHECK VALVES – 900/4500 – Pressure seal bonnet – RF/RTJ/FF

Standard BALL&PISTON CHECK VALVES – 900/4500 – Pressure seal bonnet – RF/RTJ/FF

Check valve, pressure seal bonnet, standard configuration for high pressure service, flanged ends, full bore, spring assisted and not...
Read More
Y pattern BALL&PISTON CHECK VALVES – 800/4500 – Welded bonnet – SW/NPT/BW

Y pattern BALL&PISTON CHECK VALVES – 800/4500 – Welded bonnet – SW/NPT/BW

Check valve, welded bonnet, Y-type pattern, weldable/threaded ends, full bore, spring assisted and not...
Read More
Y pattern BALL&PISTON CHECK VALVES – 150/4500 – Welded bonnet – RF/RTJ/FF

Y pattern BALL&PISTON CHECK VALVES – 150/4500 – Welded bonnet – RF/RTJ/FF

Check valve, welded bonnet, Y-type pattern, welded flanged ends, full bore, spring assisted and not...
Read More
Y pattern BALL&PISTON CHECK VALVES – 900/4500 – Pressure seal bonnet – SW/NPT/BW

Y pattern BALL&PISTON CHECK VALVES – 900/4500 – Pressure seal bonnet – SW/NPT/BW

Check valve, pressure seal bonnet, Y-type pattern for high pressure service, weldable/threaded ends, full bore, spring assisted and not...
Read More
Y pattern BALL&PISTON CHECK VALVES – 900/4500 – Pressure seal bonnet – RF/RTJ/FF

Y pattern BALL&PISTON CHECK VALVES – 900/4500 – Pressure seal bonnet – RF/RTJ/FF

Check valve, pressure seal bonnet, Y-type pattern for high pressure service, welded flanged ends, full bore, manual/actuated spring assisted and not...
Read More
Standard SWING CHECK VALVES – 800/4500 – Bolted bonnet SW/NPT/BW

Standard SWING CHECK VALVES – 800/4500 – Bolted bonnet SW/NPT/BW

Check valve, pressure seal bonnet, Y-type pattern for high pressure service, weldable/threaded ends, full bore, spring assisted and not...
Read More
Standard SWING CHECK VALVES – 150/4500 – Bolted bonnet – RF/RTJ/FF

Standard SWING CHECK VALVES – 150/4500 – Bolted bonnet – RF/RTJ/FF

Check valve, bolted bonnet, standard configuration, flanged ends, reduced/full bore...
Read More
Standard SWING CHECK VALVES – 800/4500 – Welded bonnet – SW/NPT/BW

Standard SWING CHECK VALVES – 800/4500 – Welded bonnet – SW/NPT/BW

Check valve, welded bonnet, standard configuration, weldable/threaded ends, reduced/full bore...
Read More
Standard SWING CHECK VALVES – 150/4500 – Welded bonnet – RF/RTJ/FF

Standard SWING CHECK VALVES – 150/4500 – Welded bonnet – RF/RTJ/FF

Check valve, welded bonnet, standard configuration, flanged ends, reduced/full bore...
Read More

Valves

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ANGLE BODY

CRYOGENIC

Double block & bleed

Extended body plane

Extended body reinforced

HIGH TEMPERATURE

QUICK CLOSING/OPENING

STANDARD

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Vertical drop

Weldolet