L&T – Check Valves – Pressure-seal

Check Valves – Pressure-seal
Size : 3″ to 42″ (80 mm to 1050 mm)
ASME Class : Class 600 to 4100
Design Standard : ASME B 16.34

Beyond Standards:

• Pressure-seal Check Valve conforms to ASME B 16.34.
• CE Marking – Meets requirements of Pressure Equipment Directive 2014/68/EU, Annexure III, Module H
• Atex – Meets requirements of Atex Directive 94/9/EC (ATEX), category 2 non-electrical equipment
• Safety Integrity Level for Automated Valves – SIL 3 certification available

Features that Add Value:

• Valves in intermediate reduce cost of ownership
• Pressure-Seal mechanism utilizes line pressure to enhance seal; ensures sealing integrity at higher operating pressures.
• Higher hardfacing thickness (3 mm) to ensure consistent hot hardness
• Customised deposition process in F91/ C12A valves to avoid delamination of hardfaced surfaces
• Live loading of bonnet bolts for F91/ C12A valves

Versatile Solutions:

• Available in a cast and forged steels and exotic metallurgies for a wide variety of applications
• By-pass arrangement provided for over-pressure protection based on customer requirement
• ValvTrac™ RFID tagging offered for reliable digital traceability