Full-bore isolation, cast for a working lifetime. Metal-seated API 600 gate valves in carbon and stainless steel, with a zero-leak version for when nothing may pass.
| Pressure class | Size range | |
|---|---|---|
| Class 150 | 1″ to 30″ | DN 25–750 |
| Class 300 | 1″ to 24″ | DN 25–600 |
| Class 600 | 1″ to 12″ | DN 25–300 |
| Class 800 | ½″ to 2″ | DN 15–50 |
Cast, machined and assembled to a controlled specification, from the one-piece bonnet and guided wedge to the hardfaced seats and fully-encased gasket.
Cast with uniform metal sections, smooth flowing contours and generous radius fillets to prevent stress concentrations. Designed for structural stability, mechanical strength and safe weldability. Precision machined.
Cast steel OS&Y type. The one-piece design aligns the stem accurately, eliminating excessive weight and unnecessary working parts. Every bonnet carries a stainless-steel bushing that guides the stem and backseats the valve when wide open under pressure. Precision machined.
The low-centre stem–wedge contact reduces torque considerably; operation is easy and the wedge does not stick when the valve is closed hot and allowed to cool. The split-wedge design compensates for minor seal misalignment from pipe stress and seals tight on both faces across a wide pressure range. Established long cycle life.
Long, smooth ribs line up with the seat rings and wedge, so seating faces do not contact each other until the valve is virtually closed. The T-head wedge–stem connection, with an unusually low point of contact, reduces torque and prevents lateral stresses on the stem.
Hardfaced with CA15 / Stellite for long seat life. The hard-seat concept suits on-line service, where seat faces are exposed to live fluid in the open position. Stellite facing reduces on-line seat wear.
Heat-treated 13% Cr stainless steel with a precision square thread. A heavy T-head holds the wedge at full contact for a uniform pull; a self-adjusting radial backseating shoulder engages the backseat in the bonnet. A ground, mirror-like finish gives long packing life, low friction and no leakage.
The gasketed joint is critical: its compression is better controlled in a fully enclosed cavity, and the possibility of the SS spiral-wound metal unwinding is eliminated, giving a stronger, leak-proof body-to-bonnet joint.
On every valve the stuffing box is deep, finished to a high quality and holds high-pressure or high-temperature packing rings for tightness and long packing life. Asbestos-free graphoil packing is available.
Flanges on Class 150 and Class 300 valves have a 1/16″ raised face with a serrated finish.
One arrangement in three standard builds, carbon steel through to 316 stainless. Also available in a zero-leak version.
| # | Part | Carbon steelWCB | Stainless 304CF8 | Stainless 316CF8M |
|---|---|---|---|---|
| 1 | Body | WCB | CF8 | CF8M |
| 2 | Bonnet | WCB | CF8 | CF8M |
| 3 | Wedge | CA15 / WCB+13%Cr | CF8 | CF8M |
| 4 | Seat | CA15 / Stellite-6 | CF8 | CF8M |
| 5 | Stem | SS410 | SS304 | SS316 |
| 6 | Stem nut | Gun metal | SS304 | SS316 |
| 7 | Backseat | SS410 | SS304 | SS316 |
| 8 | Gland | WCB | CF8 | CF8M |
| 9 | Packings | Graphited asbestos | P.T.F.E. | P.T.F.E. |
| 10 | Bolts | A 193-B7 | B8 | B8M |
| 11 | Nuts | A 194-2H | A 194-8 | A 194-8M |
| 12 | Handwheel | CI | CI | CI |
Asbestos-free graphoil packing is available. Also available in a zero-leak version.
| Test | Class 150 | Class 300 | Testing medium |
|---|---|---|---|
| Shell | 450 psig· 30 bar | 1125 psig· 77 bar | Kerosene / Water |
| Backseat | 325 psig· 22 bar | 835 psig· 57 bar | Kerosene / Water |
| Seat leak | 325 psig· 22 bar | 825 psig· 57 bar | Water |
Seat-leak air test provided on request.
Standard face-to-face and flange data for the Class 150 cast range. Full metric tables for Class 150 & 300 are on the GAD tab.
| Bore Ø | Face-to-face | Flange Ø | Flange thk | P.C.D. | Raised face Ø | No. holes | Hole Ø |
|---|---|---|---|---|---|---|---|
| 1″ | 5 | 4 1/4 | 7/16 | 3 1/8 | 2 | 4 | 5/8 |
| 1½″ | 6 1/2 | 5 | 9/16 | 3 7/8 | 2 7/8 | 4 | 5/8 |
| 2″ | 7 | 6 | 5/8 | 4 3/4 | 3 5/8 | 4 | 3/4 |
| 2½″ | 7 1/2 | 7 | 11/16 | 5 1/2 | 4 1/8 | 4 | 3/4 |
| 3″ | 8 | 7 1/2 | 3/4 | 6 | 5 | 4 | 3/4 |
| 4″ | 9 | 9 | 15/16 | 7 1/2 | 6 3/16 | 8 | 3/4 |
| 5″ | 10 | 10 | 15/16 | 8 1/2 | 7 5/16 | 8 | 7/8 |
| 6″ | 10 1/2 | 11 | 1 | 9 1/2 | 8 1/2 | 8 | 7/8 |
| 8″ | 11 1/2 | 13 1/2 | 1 1/8 | 11 3/4 | 10 5/8 | 8 | 7/8 |
The specifications and data in this leaflet are as accurate as possible; improvements and modifications from time to time may necessitate change in design and dimensions.
Every AEW gate valve ships to a controlled arrangement drawing. One-piece OS&Y bonnet, guided solid wedge, hardfaced seats, self-adjusting backseat, each part numbered, each material specified.
Materials shown for the carbon-steel (WCB) build. Full CF8 / CF8M equivalents are on the Info tab.
Complete face-to-face, flange and bolting data taken from the arrangement drawings AEW/GTV/150 and AEW/GTV/300.
| DN · mm | NPS · in | Face-to-face | Flange Ø | Bolt circle | No. × hole Ø | Wt · kg |
|---|---|---|---|---|---|---|
| 25 | 1″ | 127 | 110 | 79.4 | 4 × 15.87 | 6.4 |
| 40 | 1½″ | 165.1 | 125 | 98.4 | 4 × 15.87 | 12 |
| 50 | 2″ | 177.8 | 150 | 120.7 | 4 × 19.05 | 15.7 |
| 65 | 2½″ | 190.5 | 180 | 139.7 | 4 × 19.05 | 26.5 |
| 80 | 3″ | 203.2 | 190 | 152.4 | 4 × 19.05 | 29 |
| 100 | 4″ | 228.6 | 230 | 190.5 | 8 × 19.05 | 43.3 |
| 125 | 5″ | 254 | 255 | 215.9 | 8 × 22.22 | 52.2 |
| 150 | 6″ | 266.7 | 280 | 241.3 | 8 × 22.22 | 68.1 |
| 200 | 8″ | 292.1 | 345 | 298.5 | 8 × 22.22 | 110.8 |
| 250 | 10″ | 330.2 | 405 | 362 | 12 × 25.4 | 190.5 |
| 300 | 12″ | 355.6 | 485 | 431.8 | 12 × 25.4 | 230 |
| 350 | 14″ | 381 | 535 | 476.3 | 12 × 28.57 | 285 |
| 400 | 16″ | 406.4 | 595 | 539.8 | 16 × 28.57 | 390 |
| 450 | 18″ | 431.8 | 635 | 577.9 | 16 × 31.75 | 550 |
| 500 | 20″ | 457.2 | 700 | 635 | 20 × 31.75 | 650 |
| 600 | 24″ | 508 | 815 | 749.3 | 20 × 34.92 | 880 |
| 25 | 1″ | 165 | 125 | 88.9 | 4 × 19 | – |
| 32 | 1¼″ | 178 | 135 | 98.4 | 4 × 19 | – |
| 40 | 1½″ | 190 | 155 | 114.3 | 4 × 22 | – |
| 50 | 2″ | 216 | 165 | 127 | 8 × 19 | – |
| 65 | 2½″ | 241 | 190 | 149.2 | 8 × 22 | – |
| 80 | 3″ | 283 | 210 | 168.2 | 8 × 22 | – |
| 100 | 4″ | 305 | 255 | 200 | 8 × 22 | – |
| 125 | 5″ | 381 | 280 | 235 | 8 × 22 | – |
| 150 | 6″ | 403 | 320 | 269.9 | 12 × 22 | – |
| 200 | 8″ | 419 | 380 | 330.2 | 12 × 25 | – |
| 250 | 10″ | 457 | 445 | 387.4 | 16 × 29 | – |
| 300 | 12″ | 502 | 520 | 450.8 | 16 × 32 | – |
| 350 | 14″ | 762 | 585 | 514.4 | 20 × 32 | – |
| 400 | 16″ | 838 | 650 | 571.5 | 20 × 35 | – |
All dimensions in millimetres, as per the AEW arrangement drawing for each class. Face-to-face per ANSI B16.10; flange drilling per ANSI B16.5; hole Ø is the bolt-hole diameter. Weights approximate. Class 150 covers DN25–600; Class 300 covers DN25–400. Investment-cast stainless (screwed / socket-weld) gate valves are offered ½–2″.
The full gate-valve catalogue, the arrangement drawings for each pressure class, and the stainless range, as print-ready PDFs for your file or tender.
Design features, materials of construction, test pressures and the full dimensional data for the API 600 cast gate range.
Cast, machined, and shipped.Made at the Shahibaug works in Ahmedabad, trusted on GAIL, BARC, Adani and Asian Paints lines.
Send us size, class, material and quantity, and we’ll respond with a quotation and the arrangement drawing for your file.
or call +91 98250 13325
