Gate Valves

Linear motion (up & down) valve used to start or stop fluid flow

Gate Valve Specifications

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MATERIALS OF CONSTRUCTION

Cast LCB, WCB, WCC, WC6, WC9, CF8M, C12A, CF3M, CF8C, & CF8M

Forged F91 & WB36

Other Materials Available Upon Request

Forged valves all one-piece design

SIZE RANGE & PRESSURE RATINGS

2” thru 24” (Cast), Class 600 thru 2500 lb.

20” thru 30” (Forged) Class 600

12” thru 18” (Forged) Class 1500 & 2500 lb.

BODY CONFIGURATIONS

Butt Weld Ends-Cast & Forged

Raised Face Flanged- Cast only

Long Pattern, Short Pattern-ASME B16.10

COMPLIANCE TO ASME B16.34OPERATING TEMPERATURE: HIGH UP TO 1130 F TYPICAL APPLICATIONS

Cogeneration, High Temp, HRSG, Steam Headers, Steam turbine, Boilers, Boiler, Balance of Plant, Biomass Boiler and Power Boiler, Pumps, Valves & Manifolds, General Service

Gate Valves Features
& Benefits

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https://cranecpe.com/wp-content/uploads/CPE-PACIFIC-FORGED_PS-BU-EN-LT-2018_11_09-web.pdf

Gate valves are normally used for on-off service. They are not recommended for throttling service.

Gate valves are normally installed in horizontal pipe runs with the valve stem vertically up. They can also be installed in vertical or horizontal pipe runs with the valve stem other than vertical, but special construction may be required depending on valve size, service conditions, and material.

After closing a gate valve with sufficient force to develop shutoff, the stem should be backed off slightly (1⁄8 to 1⁄4 turn) to relieve stem load. This will enable the stem to expand slightly without bending or damaging the valve and will not affect valve shutoff.

Gate valves are offered in two designs: Parallel Disc and Flexible Wedge. Parallel Disc are position seated; Flexible Wedge are torque seated when closing.

Can be installed bidirectionally

Our PARALLEL DISC DESIGN eliminates thermal binding and is capable of zero leakage.Spring-loaded discs are self-aligning, reducing actuator torque requirements. This will result in a smaller actuator.Our WEDGE GATE DESIGN has a one-piece flexible wedge is fully-guided and resists sticking or binding due to thermal expansion.T-head stem design eliminates wedge misalignment. This is the optimal design because it allows some flexibility between the stem and the wedge, which can account for distortion in the body due to thermal changes.