Technical Parameters
Category Parameter Specification / Description
General Model Series 4221 (within ET Family)
Type Top-Guided Globe Valve
Flow Characteristic Linear, Equal Percentage, or Quick Open (depends on trim).
Pressure & Temperature Pressure Rating (ANSI) ANSI Class 150, 300, 600
Max. Allowable Pressure Up to 1480 psig (102 bar) for Class 600.
Temperature Range Standard: -350°F to 1100°F (-212°C to 593°C). Depends on body/trim materials and seals.
Flow & Sizing Valve Sizes 1/2" to 6" (DN 15 to DN 150)
Flow Capacity (Cv) Ranges from ~1 (for 1/2") to ~200 (for 6"), depending on trim size.
End Connections Flanged (RF, RTJ), Buttweld, or Socket Weld.
Materials & Construction Body Materials Alloy 20 (CN7M) is a very common standard material for the 4221, providing excellent corrosion resistance. Also available in 316 Stainless Steel (CF8M), Hastelloy, Duplex Stainless Steel, and others.
Trim Materials Standard Trim: Stainless Steel.
Severe Service Trim: Hardened alloys, Stellite, Ceramics.
Seat Leakage ANSI Class II, IV, V, or VI (depending on trim selection).
Actuator Mounting Designed for Fisher 1055/1061/1070 series pneumatic diaphragm actuators or other linear actuators.
More details >>
Request a Quote >>