Fisher™ D4 Control Valve

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Product Description

The Fisher D4 control valve is a compact, rugged globe valve designed primarily for high-pressure, throttling applications using either pneumatic or electric control. This valve is ideal for use on pressure and flow control applications within the oil and gas production industry. These valves are especially useful 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.

Specifications

Certifications: PED, CUTR, ATEX, CRN

Critical Service: Dirty Service, Erosive

Flow Characteristics: Equal Percentage

Material: Carbon Steel

Operating Temperature: Standard Temperature

Pressure Class: ANSI CL150, ANSI CL300, ANSI CL600, ANSI CL1500

Process Connection Type: Threaded, Flanged, RTJ

Shutoff Class: Class IV (FCI 70-2)

Valve Size: NPS 1, NPS 2

Valve Size Standard: NPS

Other Configurations: Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product.

Features

Removable groove pin allows quick, easy valve plug replacement.
D4 valves are available with tungsten carbide trim for erosive service.
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.
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 a standard socket.
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.
Micro-Form trim is standard for throttling or on/off service at no extra cost.
Choices of port diameters up to 31.8 mm (1.25 in), end connections, and trim materials suit these valves to many applications, including sour service.