Gate valves

9 models in this family

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Selected model

Forged gate, bolted bonnet, standard port

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Class 800 forged gate valve with a bolted bonnet and standard flow port. The ASTM A105N body and bonnet house a Z20C13 wedge with Z12CF13 stainless-steel seat and stem. A stainless-steel/graphite bonnet gasket seals the body joint, while graphite packing seals the stem. A malleable-iron handwheel provides manual operation. Threaded and socket-weld end arrangements connect the valve to the pipeline; the wedge provides the shut-off element.

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Selected model specifications

Bonnet construction	Bolted
Flow port	Standard
Body and bonnet	ASTM A105N forged steel
Seat and stem	Z12CF13 stainless steel
Closure member	Z20C13 / ASTM A276 Gr.420 wedge
Packing	Graphite
End connections	Threaded ASME B1.20.1 or socket-weld ASME B16.11
Operation	Manual, malleable-iron handwheel
Pressure class	Class 800
Design standard	API 602
Bonnet gasket	Stainless steel and graphite
Nominal size range	NPS 1/2–2

Models and configurations

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Forged gate, bolted bonnet, standard portBonnet construction: Bolted · Flow port: Standard · Body and bonnet: ASTM A105N forged steel · Seat and stem: Z12CF13 stainless steel · Closure member: Z20C13 / ASTM A276 Gr.420 wedge · Packing: Graphite · End connections: Threaded ASME B1.20.1 or socket-weld ASME B16.11 · Operation: Manual, malleable-iron handwheel · Pressure class: Class 800 · Design standard: API 602 · Bonnet gasket: Stainless steel and graphite · Nominal size range: NPS 1/2–2Class 800 forged gate valve with a bolted bonnet and standard flow port. The ASTM A105N body and bonnet house a Z20C13 wedge with Z12CF13 stainless-steel seat and stem. A stainless-steel/graphite bonnet gasket seals the body joint, while graphite packing seals the stem. A malleable-iron handwheel provides manual operation. Threaded and socket-weld end arrangements connect the valve to the pipeline; the wedge provides the shut-off element.

Forged gate, bolted bonnet, full portBonnet construction: Bolted · Flow port: Full port · Body and bonnet: ASTM A105N forged steel · Seat and stem: Z12CF13 stainless steel · Closure member: Z20C13 / ASTM A276 Gr.420 wedge · Packing: Graphite · End connections: Threaded ASME B1.20.1 or socket-weld ASME B16.11 · Operation: Manual, malleable-iron handwheel · Pressure class: Class 800 · Design standard: API 602 · Bonnet gasket: Stainless steel and graphite · Nominal size range: NPS 1/4–2Full-port forged gate valve with a bolted bonnet, ASTM A105N body and bonnet, and Z20C13 wedge. Its full flow port distinguishes this configuration from the standard-port version. The seat and stem are Z12CF13 stainless steel, with graphite stem packing. The bonnet uses a stainless-steel/graphite gasket. Threaded or socket-weld ends provide pipeline connections, and a malleable-iron handwheel provides manual operation.

Forged gate, welded bonnet, standard portBonnet construction: Welded · Flow port: Standard · Body and bonnet: ASTM A105N forged steel · Seat and stem: Z12CF13 stainless steel · Closure member: Z20C13 / ASTM A276 Gr.420 wedge · Packing: Graphite · End connections: Threaded ASME B1.20.1 or socket-weld ASME B16.11 · Operation: Manual, malleable-iron handwheel · Pressure class: Class 800 · Design standard: API 602 · Nominal size range: NPS 1/2–2Class 800 forged gate valve with a welded body-to-bonnet joint and standard flow port. ASTM A105N is used for the body and bonnet, with a Z20C13 wedge. Z12CF13 seat and stem components work with graphite stem packing to form the sealing assembly. Manual handwheel operation moves the wedge across the flow passage. Threaded or socket-weld ends allow the pipeline connection to match the installation arrangement.

Forged gate, welded bonnet, full portBonnet construction: Welded · Flow port: Full port · Body and bonnet: ASTM A105N forged steel · Seat and stem: Z12CF13 stainless steel · Closure member: Z20C13 / ASTM A276 Gr.420 wedge · Packing: Graphite · End connections: Threaded ASME B1.20.1 or socket-weld ASME B16.11 · Operation: Manual, malleable-iron handwheel · Pressure class: Class 800 · Design standard: API 602 · Nominal size range: NPS 1/4–2This gate valve combines an ASTM A105N forged body and bonnet with a welded bonnet joint and full flow port. The Z20C13 wedge closes against a Z12CF13 seat, and the stem is also Z12CF13. Graphite seals the stem, with manual handwheel operation. The Class 800 configuration spans nominal sizes from one-quarter to two inches and has threaded and socket-weld end arrangements.

Forged steel flanged gate valvePipeline connection: Flanged · Flanged-series classes: Class 150 / 300 / 600 · Series nominal size range: DN 10–50 / NPS 3/8–2 · Closure member: Wedge · Stem arrangement: Rising · Bonnet construction: Bolted · Operation: Manual handwheelForged-steel gate valve with flanged ends and manual handwheel operation. Its wedge and rising stem open or close the straight passage between the two flanges, with a bolted body-to-bonnet joint. This arrangement combines a flanged pipeline interface with compact forged-valve construction. The flanged series includes Class 150, 300 and 600 arrangements and nominal sizes DN10 to DN50. Face-to-face length forms part of the installation configuration and must be specified together with class and size.

Cast steel gate valveWedge type: Solid wedge · End arrangement: RF flanged ends · Body and bonnet options: ASTM A216 WCB / A352 LCB / A352 LC3 / A217 WC6 / A217 C5 · Trim options: 13% Cr, F304/F316, Stellite hard-facing · Packing: Two braided-graphite rings and expanded-graphite rings · Operation: Steel or ductile-iron handwheel · Design standard: API 600 · Face-to-face standard: ASME B16.10 · Flange standard: ASME B16.5Cast-steel gate valve with a solid wedge, RF flanged ends and handwheel operation. Body and bonnet configurations cover carbon steel, low-temperature steel and chromium-molybdenum alloy steel. WCB, LCB, LC3, WC6 and C5 are body and bonnet options within the series. Trim arrangements include 13% chromium or F304/F316 stainless steel, with Stellite hard-facing options. Packing combines two braided-graphite rings with further expanded-graphite rings; stainless-steel/graphite bonnet-gasket arrangements are also specified.

Gate valve with ring-joint flangesValve type: Gate · End connection: Ring-joint flanges, RJ · Flange sealing arrangement: Sealing ring in mating flange grooves · Flange standard: ASME B16.5 · Nominal size range: DN 50–350 / NPS 2–14 · Operation: Stem and handwheelGate valve with ring-joint flanges at both ends, providing an annular sealing interface within the flange grooves. The wedge opens or closes the straight flow passage, with operation transmitted through the stem and handwheel. The ring-joint connection is defined with ASME B16.5 flange dimensions. The dimensional series covers DN50 to DN350, equivalent to NPS2 to NPS14. The ring configuration and connection class must match the mating flanges.

Gate valve with butt-welding endsValve type: Gate · Pipeline connection: Butt-weld, BW · End preparation: Bevelled · End standard: ASME B16.9 · Nominal size range: DN 50–350 / NPS 2–14 · Operation: Stem and manual handwheelGate valve with bevelled ends for butt-welding to the pipeline. This configuration combines a wedge-type closure with a direct welded connection at each end of the body. The stem and handwheel move the closure across the flow passage. The bevelled end arrangement is specified with ASME B16.9, and the dimensional series covers DN50 to DN350, equivalent to NPS2 to NPS14. Pipe connection diameter and wall thickness form part of the size and rating specification.

Extended-bonnet cryogenic gate valveValve type: Cryogenic gate · Construction: Extended bonnet and stem · Duty: Cryogenic isolationThis cryogenic gate valve has an extended bonnet and stem. The increased distance between the process body and the operating assembly is the defining construction shown. A linearly moving closure member provides isolation of the main flow path. Specify the end connections, material suitable for the cold fluid, and the pressure-temperature envelope for the required configuration. Limits for a standard gate valve must not be assumed to apply to this special construction.