Fisher D4 High Pressure Globe Valve – Sliding Stem Valves

Fisher D4 High Pressure Globe Valve is part of the sliding stem valve range that are compact and rugged designed primarily for high-pressure throttling applications within the oil and gas industry. The Fisher D4 is particularly suitable for either throttling or on/off control of liquids or gases which are gritty, sticky, or which have a tendency to build up on internal valve parts.

D4 is ideal for use as a dump valve on gas separators and scrubbers.

The unique D4 valve is designed to provide additional protection if disassembly of bonnet/valve body connection is started while there is still pressure in the valve body.

Fisher D4 High Pressure Globe Valve

Product Features

Electric and Pneumatic

Safer Bonnet / Valve Body Connection– Unique design provides additional protection if disassembly of bonnet/valve body connection is inadvertently started while there is still pressure in the valve body. Pins mounted in the valve bonnet help ensure the bonnet disengages from the valve body as the hammer nut is removed, while the threads are still engaged.
Heavy–Duty Guiding–Massive guiding (figures 1 and 2) positively aligns the valve plug in the seat ring for reliable service. The screwed-in seat ring completely encloses the seat ring gasket.
Live–loaded Packing System–The packing system provides an improved stem seal to help prevent the loss of valuable or hazardous process fluids or gases. It features Fisher ENVIRO-SEALt packing technology to provide reduced packing maintenance.

Electric and Pneumatic

NACE Constructions–NACE compatible trim is available with the D4 control valve. These constructions meet the metallurgical requirements of NACE MR0175 / ISO 15156.
Quick–Change Valve Plug–Removable groove pin allows quick, easy valve plug replacement.
Severe Service Capability with Tungsten Carbide Trim–D4 valves are available with tungsten carbide trim for erosive service. This trim is designed specifically for severe service applications in the oil and gas industry. Durable tungsten carbide trim may benefit your application by wearing better and lasting longer.
Easy Installation–Compact design allows installation where space is a premium. Screwed valve bodies feature compact face-to-face dimensions while flanged valve bodies conform to ISA-75 standards for maximum versatility.
Easy Maintenance–Hammer nut bonnet/body joint allows repair or maintenance with a minimum of tools, without removing the valve body from the piping system. Seat ring can be removed with the same service tools used with a Fisher D valve.
Integral Bonnet Flange– Bonnet has an integral flange that accepts hammer nut force when making the bonnet-to-body connection. There are no snap rings subject to possible failure in sour service or in atmospheric corrosion.
Standard Trim for Throttling or On–Off Service– Micro-Form trim is standard for throttling or on-off service at no extra cost.
Application Flexibility–Choices of port diameters up to 31.8 mm (1.25 inches), end connections, and trim materials suit these valves to many applications, including sour service.

Electric

Low Power Consumption– The Fisher easy-Drive electric actuator operates with 12 or 24VDC and less than 0.1 watt hours per operation, using Modbus, 4-20 mA, 1-5VDC, or dry contact control signals.
Low Temperature– The easy-Drive electric actuator design allow use in ambient temperatures as low as -20°C (-4°F) without use of a heater.
Easy Installation–The compact design allows installation where space is a premium. Fisher easy-Drive calibrates by simply opening and closing the valve.
Remote Monitoring and Configuration– Loss of signal position is programmable over Modbus.

Pneumatic

Low Temperature Materials–Valve construction materials allow use in applications as low as -40°C (-40°F) for the pneumatic actuator.

Fisher D4 High Pressure Globe Valve

PRODUCT Specification

Available Actuation Configurations	Spring-To-Close Pneumatic Spring-To-Open Pneumatic Electric
Dimensions	Face-to-face dimensions for flanged valves conform to ISA-75.03 (CL150-600) and ANSI/ISA-75.16 Short (CL900/1500)
Maximum Inlet Pressures and Temperatures(1)	Flanged connections are consistent with the ASME B16.34 pressure-temperature class, subject to Material Temperature Capabilities for the Valve Body Assembly (see following specification). For NPT end connections, the valve body rating is 4250 psig.
Shutoff Classification per ANSI/FCI 70-2 and IEC 60534-4	Class IV
Flow Characteristic	Equal percentage
Flow Direction	Flow up only
Construction Materials	Valve Body and Bonnet: ASME SA 352 LCC Valve Plug and Seat: See table 5 Valve Stem: S20910 Actuator O-Rings: (HNBR) Hydrogenated Nitrile Bonnet O-Ring: Standard: HNBR Optional: Fluorocarbon Packing: PTFE/Carbon PTFE Packing Springs: N07718 Packing Retainer: S17400 Actuator Diaphragm: Chloroprene Actuator Spring: Painted steel Seat Ring Gasket: S31600 (316 SST) Spring Cover (Fail Up): PVC
Valve Plug Travel	19 mm (0.75 inch)
Valve Plug Style	Micro-Form valve plug
Material Temperature Capabilities	Valve Body Assembly: Standard Bonnet O-Ring: -40 to 135°C (-40 to 275°F) Optional Bonnet Fluorocarbon O-Ring: -23 to 204°C (-10 to 400°F)

Fisher D4 High Pressure Globe Valve – Sliding Stem Valves

FISHER D4 HIGH PRESSURE GLOBE VALVE

ACTUATOR SPECIFICATIONS

Electric Actuator
Material Temperature Capabilities(1)	Electric Actuator Assembly: -20 to 70°C (-4 to 158°F) ambient
Available Electric Actuator Configurations	Gen 2 easy-Drive Electric On/Off (snap acting) Gen 2 easy-Drive Electric Positioning (flow or pressure control)
Power Requirements	9 to 30VDC, minimum 4 amp power supply required (fuse to 5 amps), less than 5% ripple, 15 mA quiescent at 24VDC, 25 mA quiescent at 12VDC (40 mA quiescent for Gen 1)
Maximum Current Draw	4 amps
Nominal Stroke Speed(2)	3.9 mms (0.15 inch/s) at 24VDC 2.2 mm/s (0.09 inch/s) at 12VDC
Control Signals	On/Off: Dry contact, Modbus RTU Positioning: 4-20 mA, 4-20 mA level, Modbus RTU Auxillary Digital Input (Gen 2 only): Dry contact Auxillary Digital Output (Gen 2 only): 10VDC, 25 mA maximum
Hazardous Area Approvals	CSA (C/US): ExplosionProof Class I, Division 1, Groups C and D, T6, Ex d IIA T6, Class I, Zone 1, AEx d IIA T6 ATEX Flameproof – Gas: II 2 G, Ex db IIA T6 IECEx Flameproof – Gas: Ex db IIA T6
Enclosure Rating	Type 4X and IP66
Electromagnetic Compatibility	Meets EN 61326-1 (2013) Immunity: Industrial locations per table 2 of EN 61326-1 Standard. Performance is shown in table 2 Emmissions: Class A ISM Equipment Rating: Group 1, Class A
Conduit Connections	Two 3/4 NPT connections
Pneumatic Actuator
Material Temperature Capabilities(1)	Pneumatic Actuator Assembly: -34 to 82°C (-30 to 180°F) ambient
Available Pneumatic Actuator Configurations	Spring‐to‐Open Spring‐to‐Close
Maximum Actuator Casing Pressure(1)	3.4 bar (50 psig)
Actuator Diaphragm Effective Area	452 cm2 (69 square inches)
Actuator Pressure Connections	1/4 NPT internal

See how Fisher Control Valves provide safe, efficient and intuitive flow control.

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➡ Did you know? Fisher Control Valves are approved, certified and classified to international standards including ASME, CSA, IEC, NACE, FDA & NFPA. Should you require assistance with valve specification for explosion-proof or intrinsically safe applications in the hazardous area industries, please contact T&D.