Ball Valve Split body - Type FH2 | ADLER

ADLER FH2 Split Body Ball Valve

The ADLER FH2 is a 2-piece, split body, full bore ball valve for isolation service on ANSI Class 600 flanged lines. Size range covers DN15–DN150, with body materials including carbon steel, stainless steel and special alloy executions.

Technical Characteristics

• Connection: ANSI flanged ends
• Pressure class: 600 lb
• Materials: ASTM A105, ASTM A351 CF8M, ASTM A479 Type 304 / 316
• Seat material: PTFE
• Anti blow-out stem design
• Antistatic device
• Chevron stem packing rings
• Top mounting flange: ISO 5211
• Double sealing at the body/end connection

Standards and Available Executions

Design and dimensional references include EN 12516-2, ASME B16.34, EN 1759-1, ASME B16.5, ISO 14313, ANSI B16.10 and EN 558 basic series 5. Available executions include fire-safe ISO 10497/API 607, BS 6755/API 607/6FA, PED, TPED, ATEX, SIL 3 and ISO 15848 class A.

Sealing and Construction Options

• PTFE or reinforced PTFE seats, selected according to pressure, temperature and media compatibility
• Optional stem O-ring
• Stem extension or cryogenic extension according to ISO 28921
• Degreasing for oxygen service according to ISO 23208
• Manual lever, gearbox, pneumatic actuator or electric actuator
• Pneumatic or electro-pneumatic positioner for automated control packages

Typical Applications and Suitable Media

The FH2 is used for on/off isolation in steam, water, compressed air, fuel, gas and process liquid systems. Final selection should verify compatibility with PTFE seats, stem sealing materials and body metallurgy, as well as the applicable pressure-temperature rating.

Selection Logic: FH2 versus FG2

The FH2 is selected instead of the FG2 when the pipeline specification requires ANSI Class 600 flanges and the higher mechanical rating associated with Class 600 body and flange construction. For lower pressure classes, the FG2 may be the more appropriate selection if it satisfies the line class, temperature and leakage requirements.

Industrial Use Cases

• Battery-limit isolation on process units
• Fuel gas and utility gas isolation lines
• Steam and condensate headers, subject to seat temperature limits
• Water, air and general utility manifolds
• Automated shutdown or remote isolation valves with ISO 5211 mounting

FAQ

Is the FH2 suitable for throttling?
It is primarily an isolation valve. Continuous throttling should be evaluated separately because ball and seat wear, noise and cavitation risk depend on differential pressure and flow regime.

Can it be automated?
Yes. The ISO 5211 top flange allows mounting of pneumatic or electric actuators, with optional positioners where feedback or modulating service is required.

What limits the operating temperature?
The pressure-temperature envelope is governed by the valve rating, body material, PTFE or reinforced PTFE seats, stem seals and applicable code limits.