VGF31LD25 | Honeywell | Control Valves

Size: 2-1/2" to 6", ANSI Flanges

Cv Range: 72 to 370

Connections: Flanges per ANSI/ISA 75.03; bolt holes conform to ANSI B16.1

Stroke: 3/4" (2-1/2" and 3" valves); 1-1/2" (4", 5" and 6" valves)

Body Pattern:

Two-way: stem up to open

Three-way mixing: stem up to open B-AB

Three-way diverting: stem up to open AB-A

Flow Characteristic:

Two-way: Equal percentage or linear

Three-way: Linear

Rangeability: 50:1

Leakage Rating:

Single seat: ANSI Class III, 0.05%

Pressure balanced: ANSI Class IV, 0.01%:

Maximum Closeoff Pressure: Actuator dependant, see Selection Chart

Maximum Pressure Rating: See Table 1

Pressure Rating: ANSI Class 125 (Class 250 models available)

Materials Of Construction:

Cast iron ASTM A126 Class B (GG25) body, stainless steel stem and trim, spring-loaded PTFE cone ring packing

Media Compatibility: Hot or chilled water, <50% glycol, steam to 100 psig (690 kPa)

Media Temperature Range: See Table 1

Actuator Mounting:

U-bolt or set screws attach to valve yoke; 2-1/2" and 3" valves: 1-3/8" yoke diameter and 3/4" stroke length; 4", 5″ and 6" valves: 1-7/8" yoke diameter with 1-1/2" stroke length:

Compatible Actuators: Honeywell MN/MS Series with appropriate Q5024 Linkage and bonnet adapter,or direct-mount ML Series

Operating Temperature: Actuator dependant, refer to appropriate ACTUATORS & DAMPERS section or ML Series (in Control Valves) for specifications

Approvals: Actuator dependant, refer to appropriate ACTUATORS & DAMPERS section or ML Series (in Control Valves) for specifications

Warranty: 1 year on valves, 5 years on rotary actuators, 1 year on direct-mount actuators