Description
TECHNICAL DATASHEET
14″ 125LB Ductile Iron Rising Stem Gate Valve
- General Specifications
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Item
|
Specification
|
|
Valve Type
|
Rising Stem Gate Valve (OS&Y)
|
|
Nominal Size
|
14 inches (14″) / DN350
|
|
Pressure Class
|
125 LB (Class 125)
|
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End Connection
|
Flanged Ends
|
|
Flange Standard
|
ASME B16.1 Class 125 (Cast Iron Flange, RF/FF)
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Face-to-Face Dimension
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MSS SP-70 / ASME B16.10
|
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Design & Manufacture Standard
|
MSS SP-70
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Test & Inspection Standard
|
API 598
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- Design Parameters
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Item
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Unit/Standard
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Parameter
|
|
Max. Allowable Pressure
|
psi
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200 psi @ Saturated Steam / 175 psi @ WOG (Non-Shock)
|
|
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 / °F
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-29°C to 220°C (-20°F to 430°F)
|
|
Operation
|
–
|
Handwheel / Gearbox (Recommended for this size)
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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.)
|
|
1. Body
|
Ductile Iron (DI)
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ASTM A536 (60-40-18) or ASTM A395
|
|
2. Bonnet
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Ductile Iron (DI)
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ASTM A536
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3. Wedge (Gate)
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Ductile Iron (DI) with Bronze seat face
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ASTM A536, Bronze overlay/inlay on seat faces
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|
4. Seat Ring (Seat Face)
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Bronze
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ASTM B62 (C83600) or ASTM B61
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5. Stem
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Stainless Steel
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ASTM A276 Type 410 / 304 / 316
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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
|
–
|
|
8. Gasket
|
Non-asbestos fiber / Graphite
|
–
|
|
9. Bolts/Nuts
|
Carbon Steel
|
ASTM A307 Grade B / A194 2H (Zinc plated)
|
|
10. Handwheel
|
Ductile Iron / Malleable Iron
|
–
|
- Main Dimensions (Reference)
Note: Dimensions for reference only. Final dimensions to be verified per manufacturer’s drawing. (Unit: mm / inch)
|
Description
|
Dimension (mm)
|
Dimension (inch)
|
Remarks
|
|
Face-to-Face (L)
|
584
|
23.0
|
Per MSS SP-70 / ASME B16.10
|
|
Flange Diameter (D)
|
470
|
18.5
|
ASME B16.1 Class 125
|
|
Bolt Circle Diameter (C)
|
419.1
|
16.5
|
ASME B16.1 Class 125
|
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Bolt Holes (n-ød)
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12-ø25.4
|
12-1.0″
|
12 holes
|
|
Flange Thickness (T)
|
32
|
1.26
|
ASME B16.1 Class 125
|
|
Handwheel Diameter (W)
|
Approx. 500
|
Approx. 19.7
|
Varies by manufacturer; gearbox recommended
|
|
Top-to-Open Height (H)
|
Approx. 1100
|
Approx. 43.3
|
From stem top to handwheel (Reference)
|
|
Approx. Weight
|
450 kg
|
990 lbs
|
Estimated, varies by manufacturer
|
- Inspection & Testing (API 598)
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Test Description
|
Medium
|
Pressure (psi)
|
Requirement
|
|
Shell (Hydrostatic)
|
Water
|
300
|
No visible leakage
|
|
Seat (High Pressure)
|
Water
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220
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Leakage Rate: Class D (or as specified)
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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
|
60 – 80
|
Optional, leakage rate ≤ specified rating
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- Options & Accessories
|
Item
|
Options
|
|
Stem Upgrade
|
17-4PH / Monel / Inconel / AISI 316
|
|
Wedge Material
|
Full Stainless Steel / Nickel-Coated Ductile Iron
|
|
Operation
|
Gearbox (Recommended for 14″) / Electric Actuator / Pneumatic Actuator / Extension Stem
|
|
Flange Facing
|
Flat Face (FF) or Raised Face (RF) to match counter flange
|
|
Coating
|
Epoxy Coated (Blue RAL 5005 or Black), min. thickness 250μm per AWWA C550
|
|
By-Pass
|
By-Pass Assembly (for pressure equalization)
|
|
Position Indicator
|
Rising stem provides visual indication; optional limit switch for actuated versions
|
Notes / Remarks:
- Pressure Rating: Class 125 per ASME B16.1 standard. Maximum allowable working pressure is 175 psi for WOG (Water, Oil, Gas) and 200 psi for saturated steam at ambient temperature.
- 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.
- Gearbox Recommendation: Due to the large size (14″), a gearbox operator is strongly recommended for ease of operation and to reduce manual effort.
- Applicable Standards: This datasheet is based on MSS SP-70 and ASME 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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