Cast Steel Parallel Slide Gate Valve (With Bypass Valve)
Description
Cast Steel Parallel Slide Gate Valve (With Bypass Valve) – Technical Datasheet
1. Product Overview
This product is a high-performance Cast Steel Parallel Slide Gate Valve equipped with an integrated bypass valve, designed for reliable shut-off and isolation in high-pressure and high-temperature industrial pipelines. As shown in the provided images, it features a robust ASTM A216 WCB cast steel body (rated Class 300), a bolted bonnet design, a rising stem, and a manual handwheel. The integrated bypass valve allows for pressure equalization across the main discs before opening, significantly reducing operating torque and preventing pipeline water hammer. It is widely used in power plants, steam distribution networks, and petrochemical facilities.
2. Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Cast Steel Parallel Slide Gate Valve (With Bypass) |
| Brand | SAVVY |
| Body Material | ASTM A216 WCB (Cast Carbon Steel) |
| Nominal Pressure (PN) | Class 300 (ASME B16.34) |
| Nominal Diameter (DN) | DN50 – DN600 (2″ – 24″) |
| Connection Type | Flanged (RF / FF / RTJ) |
| Operation Mode | Manual (Handwheel) |
| Stem Type | Rising Stem (Visible threads as shown in images) |
| Bonnet Type | Bolted Bonnet |
| Bypass Valve | Integrated, Manual Handwheel Operated |
| Applicable Temperature | -29°C ~ +425°C |
| Applicable Medium | Steam, high-temperature water, oil, gas, corrosive fluids |
| Design Standard | API 600 / ASME B16.34 / DIN 3352 |
3. Material of Main Parts (Standard Configuration)
| Part Name | Standard Material | Optional Material |
|---|---|---|
| Body | ASTM A216 WCB (Cast Carbon Steel) | WC6 / WC9 / CF8 / CF8M |
| Bonnet | ASTM A216 WCB (Cast Carbon Steel) | WC6 / WC9 / CF8 / CF8M |
| Discs (Parallel) | WCB + Stellite Overlay | SS304 / SS316 + Stellite Overlay |
| Seat Rings | Stainless Steel / Stellite Overlay | SS316 + Stellite |
| Stem | Stainless Steel (SS410 / SS304) | SS316 |
| Bypass Valve | A105 / WCB Body, SS316 Trim | – |
| Handwheel | Cast Iron / Ductile Iron | Carbon Steel |
| Packing | Flexible Graphite | PTFE |
| Gasket | Spiral Wound Gasket (SWG) | Metal Ring Joint |
| Coating | Grey Epoxy Resin | Custom colors available |
4. Applicable Standards
| Standard Type | Reference Standard |
|---|---|
| Design & Manufacture | API 600 / ASME B16.34 / DIN 3352 |
| Flange Connection | ASME B16.5 (Class 300) / DIN 2501 |
| Face to Face | ASME B16.10 / DIN 3202 / EN 558 |
| Pressure Test | API 598 / ISO 5208 / GB/T 13927 |
5. Key Features
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Integrated Bypass Valve: The bypass valve (clearly visible on the side of the main body) allows for pressure equalization between the upstream and downstream sides before the main valve is opened. This dramatically reduces the operating torque required on the main handwheel and prevents water hammer.
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Robust Cast WCB Body: The ASTM A216 WCB cast carbon steel body (rated Class 300) provides excellent strength and durability for high-temperature and high-pressure steam and water applications.
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Parallel Disc Design: The parallel double-disc configuration ensures a tight, bi-directional seal across a wide temperature range. It eliminates the risk of wedging or sticking found in traditional wedge gate valves.
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Low Operating Torque: Due to the parallel disc design and the pressure-balancing function of the bypass valve, manual operation is smooth and labor-saving.
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Rising Stem & Visual Indicator: The rising stem design provides a clear visual indication of the valve’s open or closed position directly from the exposed threaded stem.
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Secure Export Packaging: As shown in the images, the valve is securely packed in a sturdy wooden crate with protective wrapping, ensuring it arrives in perfect condition for international shipping.
