Forged Gate Valve

• SAP Forged Steel Valves have been designed to meet the requirements of API 602/BS 5352/ASME B 16.34
• Socket weld ends dimensions confirm to ASME B 16.11
• Screwed ends dimensions confirm to ASME B 1.20.1
• Outside screw and yoke construction
• The gland is of two piece self aligning type
• Back seat arrangement for Gate and Globe Valves.
• Valves meet the requirements of fugitive emission levels Shell category B as per MESC SPE 77 / 312

• SAP Gate Valves are heavy duty, outside screw & yoke type, bolted bonnet, rising stem with non rising hand wheel.
• Straight through bore design assures streamlined, minimum turbulence, less erosion, lower pressure drop, & resistance to flow.
• Anti- friction bearings are provided in higher sizes and classes.
• Bi-directional shut-off.
• Deep stuffing box.
• The Seat rings are cylindrical bottom seated type having ample cross section for strength will provided with welded in and threaded Seat-rings will be supplied on request. Integral seat ring provides in SS valves.
• Gate Valves are available in 150#, 300# & 600#.
• Universal trim: 13Cr stem, wedge in CA 15 or 13Cr faced is also available.
• Flexible wedge with low center stem wedge contact, in solid CA15 (13 % Cr) or hard faced with 13% Cr, SS 316, & Monel. Wedge is ground and lapped to a mirror finish and tightly guided to prevent dragging and seat damage, Non-rotating stem with precision Acme threads and burnished finish.
• The two inclined seats allow for tight shut off even against high pressures. Renewable Seat Rings Welded or Threaded.
• Gate Valves are of flexible wedge, outside screw and-yoke and bolted-bonnet construction. The valves confirm to API 600

• Standards: : Valve comply with BS 5155, API 609, MSS SP 67 and ISO 5752 valves designed to fit without gaskets between flanges drilled to ANSI 125, DIN. ND 10.16 BS 10 tables D E and F of BS 4505 PN 10/16 tables 6, 7 & 8 of IS: 6418 and tables. 11, 15 & 17 of IS: 6392
• Note: : Face to face dimensions given in the installed condition (i.e. with liner compressed) Free length exceeds this dimension by 5 mm max. Depending on valve size. The minimum internal pipe diameter should exceed this dimension for correct installation.
• Technical Data & Specifications : Size Range : 50 to 700 mm Pressure Rating : PN 10 / PN 16 / PN 20 Temp. Rating : Material will be selected according to service.

Bolted Body Construction

• As a standard, the valves are manufactured in 2-piece or 3 Piece bolted body designs, where the joint between the body and the connector is bolted.

Double Block and Bleed

• SAP Trunnion Mounted Ball Valves are designed for upstream sealing, so that the double block and bleed features are automatically built in. The load generated by the line fluid on ball is absorbed by the Trunnion bearings and is directly transmitted to the valve body.
• The valve stem is hence free from any bending load which leads to reduced stem friction torque and enhanced stem seal life. The seat rings are allowed to float in the flow axis against a fixed ball so that the line pressure assists in pressing the spring-loaded upstream seat against the ball. Thus, the operating torque and wear on the seats is relatively low, enhancing seat life.
• The seats provide the positive seal at both upstream and downstream independently. The fluid is blocked from the body cavity; this facilitates to check the integrity of the upstream and downstream seats.