About A182 F9 Alloy Steel Piston Type Lift Check Valve
A182 F9 Alloy Steel Piston Type Lift Check Valve
Main Features :
- Bolted Body-Cover design for valves from Class 800 up to Class 2500. Valves with welded bonnet also available on request
- Screwed with a seal-welded body-bonnet design for valves of Class 2500
- Bolted body-bonnet joints provided with spiral-wound stainless steel gasket and graphite filler for maximum protection against leaks
- Die-formed graphite inner packing rings and braided graphite end rings with Inconel wire reinforcement and corrosion inhibitor
- T-head stem-disc connection of gate valve fully meets strength requirements of API 602 and API 598
- Rolled ACME thread on stem for smooth operation
- Tapered shoulder on the stem for back seating
- Self-aligning type gland assembly with stud-and-nut tightening
- Integral hard-faced body seat for globe and check valves
- Spring-loaded disc on check valves suitable for no horizontal applications too
- Gate and globe valves can be offered with electrical actuators
- Austenitic SS forging for body and bonnet of Cryogenic valves, resulting in excellent impact strength, minimal heat loss and resistance to corrosion
- Valves can be offered to NACE MR-0175 and other special NACE requirements
High Performance and ReliabilityDesigned for demanding industrial environments, the A182 F9 Alloy Steel Piston Type Lift Check Valve delivers consistent non-return operation. Its robust forged alloy steel body and hard-faced or alloy steel seat material prevent leakage and withstand temperature extremes, ensuring dependable service across various media such as water, oil, and gas.
Versatile Installation and OperationThis check valve accommodates multiple installation positions-horizontal or vertical-and supports a variety of end connections, meeting ANSI, DIN, and JIS standards. Its smooth and anti-corrosive coating promotes longevity, while manual operation simplifies use for distributors, manufacturers, and suppliers.
FAQ's of A182 F9 Alloy Steel Piston Type Lift Check Valve:
Q: How is the A182 F9 Alloy Steel Piston Type Lift Check Valve installed?
A: The valve is designed for flexible installation, allowing placement in either horizontal or vertical positions. It supports flanged, butt weld, or socket weld connections, enabling compatibility with diverse piping systems as per ANSI, DIN, and JIS standards.
Q: What are the benefits of using this check valve in industrial applications?
A: Its forged alloy steel body, hard-faced seat, and rust-proof coating offer enhanced durability and corrosion resistance. These features ensure long service life, minimal maintenance, and dependable prevention of reverse flow in sectors such as petrochemical, oil & gas, and power plants.
Q: When should I choose a piston type lift check valve over other types?
A: Piston type lift check valves are ideal when precise non-return functionality is needed under varying pressures and temperatures. Their design supports automatic operation and tight leakage control (Class IV/V), making them suitable for critical media like water, oil, and gas.
Q: Where can this lift check valve be used?
A: This valve is suited for applications in industrial, petrochemical, oil & gas, and power plant environments. Its robust structure and wide pressure class range (Class 150 to 2500) make it reliable for demanding conditions.
Q: What testing standards are followed for this valve?
A: All valves are tested hydrostatically and pneumatically in accordance with API 598 standards to verify integrity and ensure optimal performance before delivery.
Q: How does the automatic non-return operation work?
A: The piston disc design enables the valve to open automatically when fluid flows in the correct direction and close instantly upon flow reversal, preventing backflow and protecting system integrity without manual intervention.
Q: What maintenance is required during the valve's service life?
A: Thanks to its forged alloy steel construction and anti-corrosive coatings, the valve requires minimal maintenance. Regular inspection for operational integrity is recommended, but service intervals are generally long, minimizing downtime.