Beschrijving
TECHNICAL DATASHEET
DN150 PN25 Ductile Iron Rising Stem Gate Valve
- General Specifications
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Item
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Specificatie
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Kleptype
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Rising Stem Gate Valve (OS&Y)
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Nominale grootte
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DN150 (6″)
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Drukclassificatie
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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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Operatie
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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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–
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8. Gasket
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Non-asbestos fiber / Graphite
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–
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9. Bolts/Nuts
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Carbon Steel
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Zinc plated or black finished
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10. Handwheel
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Ductile Iron / Malleable Iron
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–
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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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Beschrijving
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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
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Approx. 80 kg
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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
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Shell (Hydrostatic)
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Water
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37.5 (1.5 x PN)
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No visible leakage
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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
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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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Operatie
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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:
- Drukclassificatie: 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).
- Stoelontwerp: Bronze seat faces are achieved by overlaying (welding) or inserting bronze rings on both body and wedge, ensuring corrosion resistance and long service life.
- Stamontwerp: 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.
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