Description
TECHNICAL DATASHEET
DN150 PN25 Ductile Iron Rising Stem Gate Valve
- General Specifications
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Item
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Specification
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Valve Type
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Rising Stem Gate Valve (OS&Y)
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|
Nominal Size
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DN150 (6″)
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Pressure Rating
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PN25
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End Connection
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Flanged Ends
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Flange Standard
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EN 1092-2 (Ductile Iron Flanges, Flat Face / Raised Face)
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Face-to-Face Dimension
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EN 558 Series 1 (or DIN 3202 F4)
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Design & Manufacture Standard
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EN 1171
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Test & Inspection Standard
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EN 12266-1
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- Design Parameters
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Item
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Unit/Standard
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Parameter
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|
Max. Allowable Pressure
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bar
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25 bar @ ambient temperature
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Service Media
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–
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Water, Oil, Gas (WOG) or Steam (depending on conditions)
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Operating Temperature
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°C
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-10°C to 120°C (depending on trim materials)
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Operation
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–
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Handwheel / Gearbox (Optional)
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- Material of Construction (M.O.C.)
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Part Name
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Material Required
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Standard / Grade (Ref.)
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1. Body
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Ductile Iron (DI)
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EN 1563 (EN-GJS-400-15 or EN-GJS-450-10)
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2. Bonnet
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Ductile Iron (DI)
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EN 1563
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3. Wedge (Gate)
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Ductile Iron (DI) with Bronze seat face
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EN 1563, Bronze overlay/inlay on seat faces
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4. Seat Face
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Bronze
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Overlay or inlay, e.g., EN 1982 (CuSn5Zn5Pb5)
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5. Stem
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Stainless Steel
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13% Cr (1.4021) or 18-8 (1.4301 / 1.4303)
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6. Stem Nut
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Bronze / Aluminum Bronze
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High-strength wear-resistant alloy
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7. Packing
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Flexible Graphite / PTFE
|
–
|
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8. Gasket
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Non-asbestos fiber / Graphite
|
–
|
|
9. Bolts/Nuts
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Carbon Steel
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Zinc plated or black finished
|
|
10. Handwheel
|
Ductile Iron / Malleable Iron
|
–
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- Main Dimensions (Reference)
Note: Dimensions for reference only. Final dimensions to be verified per manufacturer’s drawing. (Unit: mm)
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Description
|
Dimension
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Remarks
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|
Face-to-Face (L)
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310 mm
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Per EN 558 Series 1 (DN150 PN25)
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Flange Diameter (D)
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300 mm
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EN 1092-2 PN25
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Bolt Circle Diameter (C)
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250 mm
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EN 1092-2 PN25
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Bolt Holes (n-ød)
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8-ø26 mm
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8 holes
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Flange Facing Height (f)
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2 mm
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Raised face height
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Handwheel Diameter (W)
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Approx. 350 mm
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Varies by manufacturer
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|
Top-to-Open Height (H)
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Approx. 650 mm
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From stem top to handwheel (Reference)
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|
Approx. Weight
|
Approx. 80 kg
|
Varies by manufacturer
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- Inspection & Testing (EN 12266-1)
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Test Description
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Medium
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Pressure (bar)
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Requirement
|
|
Shell (Hydrostatic)
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Water
|
37.5 (1.5 x PN)
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No visible leakage
|
|
Seat (High Pressure)
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Water
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27.5 (1.1 x PN)
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Leakage rate ≤ specified rating
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Backseat Test
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Water/Air
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As required
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No visible leakage
|
|
Low Pressure Pneumatic
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Air
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0.6
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Optional, leakage rate ≤ specified rating
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- Options & Accessories
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Item
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Options
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|
Stem Upgrade
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Stainless Steel 1.4408 (AISI 316) / 17-4PH
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Wedge Material
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Full Stainless Steel (1.4408) / Nylon Coated Ductile Iron
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Operation
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Gearbox / Electric Actuator / Pneumatic Actuator / Extension Stem
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Flange Facing
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Flat Face (FF) or Raised Face (RF) to match counter flange
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Coating
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Epoxy Coated (Blue RAL 5005 or Black), min. thickness 250μm
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By-Pass
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By-Pass Assembly (optional)
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Remarks:
- Pressure Rating: PN25 per EN 1092-2 standard. Maximum allowable working pressure is 25 barat ambient temperature for water, oil, gas, and saturated steam (subject to temperature limits).
- Seat Design: Bronze seat faces are achieved by overlaying (welding) or inserting bronze rings on both body and wedge, ensuring corrosion resistance and long service life.
- Stem Design: Outside Screw and Yoke (OS&Y) design isolates the stem threads from the media, allowing in-line maintenance and providing visual indication of valve position.
- Applicable Standards: This datasheet is based on EN standards. Please confirm specific standard revisions and project special requirements before procurement.
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.
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