DN200-PN16 Cast Iron Metal Seated Rising Stem Gate Valve

Description

Technical Data Sheet

Outside Screw and Yoke (OS&Y) Gate Valve – Bronze Seated, Handwheel Operated

1. General Description

• Product: Flanged End, Outside Screw and Yoke (OS&Y), Solid Wedge Gate Valve
• Seat Type: Bronze-to-Bronze Metal Seated (Metal-to-Metal)
• Operation: Handwheel (Manual)
• Visual Indication: Rising Stem (stem position shows open/closed status)
• Design Standard: BS 5150 / BS 5163 (Metal-seated variant)
• Ends: Flanged to BS 4504 / EN 1092-2
• Face-to-Face: BS 2089 or EN 558-1 Series 3 (short pattern)
• Test Standard: BS 6755 / EN 12266-1

2. Application

• Suitable for: Water, steam, oil, gas, and other non-aggressive fluids where metal-to-metal sealing is required.
• Temperature Range: -10°C up to +200°C (depending on packing and bronze alloy)
• Pressure Rating: PN10 / PN16 (specify as required)

3. Technical Parameters (Typical for DN200 PN16)

(For other sizes, refer to Section 7.)

4. Materials of Construction

5. Features

• Handwheel Operation: Simple and direct manual control; suitable for most general applications.
• Rising Stem (OS&Y): The stem rises as the valve opens, providing clear visual indication of the valve position (open or closed) without the need for an additional indicator.
• Bronze Seated: Superior corrosion resistance and long service life in demanding fluids.
• Metal-to-Metal Sealing: Suitable for high-temperature fluids and where rubber seals are not compatible.
• In-Line Repairable: Packing can be replaced under pressure when the valve is fully open.

6. Dimensions & Weights (Reference Values – DN200 PN16 – Handwheel Operated)

(For exact dimensions, refer to manufacturer’s certified drawing.)

7. Dimensions for Other Common Sizes (PN16) – Handwheel Operation – Reference Only

*(Face-to-face per EN 558-1 Series 3; flanges per EN 1092-2 PN16. For PN10 dimensions, consult supplier.)*

8. Handwheel Operation Details

• Type: Solid or fabricated malleable/ductile iron handwheel
• Finish: Painted (same as valve body) or epoxy coated
• Operation Torque: Designed for comfortable manual operation by a single person (for sizes up to DN300). For DN350 and above, consult factory regarding operating effort.
• Direction to Close: Typically clockwise (standard) – confirm with manufacturer if required.

9. Testing

• Shell Test: 1.5 x PN (24 bar for PN16) for duration per EN 12266-1
• Seat Test: 1.1 x PN (17.6 bar for PN16) with allowable leakage per Rate D (or tighter if specified)
• Optional: High-pressure seat test, low-pressure air test, or zero-leakage resilient seat tests available on request (not applicable to metal-seated valves).

10. Notes & Selection Tips

1. Bronze Seated: Ensure the application does not require zero-leakage bubble tight shut-off; metal seated valves have allowable leakage per ISO 5208.
2. Cast Iron Limitations: Avoid thermal shock or rapid temperature changes; not suitable for flammable or toxic fluids without specific approval.
3. Visual Indication: The rising stem provides direct visual indication of valve position. No separate indicator is fitted.
4. Operation Torque: For larger sizes (above DN300), consider whether a gear operator is required for ease of use (handwheel only may require high operating torque).
5. Flange Standard: Confirm whether BS 4504 (metric) or BS 10 (inch-based) is required.

11. Ordering Information

To ensure correct selection, please specify:

• Size (DN)
• Pressure Rating (PN)
• Flange Standard (e.g., BS 4504 PN16)
• End Use / Medium
• Any special test requirements

This data sheet is a guideline; always refer to the manufacturer’s certified drawings for exact dimensions and ratings.

GUATANTEE:

SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.