1-1/2"-150LB Closed Die Forged Gate Valves

1-1/2″-150LB Closed Die Forged Gate Valves

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Description

Technical Data Sheet – Forged Steel Gate Valve

Model: Z41H / Z11H / Z61H (Depending on Connection)
Design Standard: API 602
Material: A105N Carbon Steel
Pressure Class: Class 150
Size: 1-1/2″ (DN40)
Connection: Flanged / Threaded / Socket Weld (as required)

1. General Design Specifications

Item Standard / Parameter
Design Standard API 602 / ASME B16.34 / BS 5352
Face-to-Face Dimension ASME B16.10
End Connections Flanged (RF) per ASME B16.5 / Threaded NPT per ASME B1.20.1 / Socket Weld per ASME B16.11
Pressure Rating Class 150 (PN 20)
Pressure-Temperature Rating ASME B16.34
Inspection & Testing API 598 / ISO 5208
Marking MSS SP-25
Structure Type Bolted Bonnet / OS&Y (Outside Screw and Yoke)
Bonnet Design Bolted Bonnet with Spiral Wound Gasket

2. Material Specifications

Component Material Standard / Grade
Body A105N Carbon Steel ASTM A105N
Bonnet A105N Carbon Steel ASTM A105N
Gate (Wedge) A182 F6a (13Cr) / A105N + Hardfaced ASTM A182 F6a or Hardened
Seat Ring A105N + Stellite / A182 F304 Integral or Welded
Stem A182 F6a (13Cr) ASTM A182 F6a
Stem Packing Flexible Graphite –
Gasket Spiral Wound 316SS + Flexible Graphite
Bonnet Bolts A193 B7 ASTM A193 Grade B7
Bonnet Nuts A194 2H ASTM A194 Grade 2H
Handwheel Malleable / Ductile Iron –

3. Pressure-Temperature Rating (Class 150 – A105N Material)

Note: Based on ASME B16.34 for carbon steel materials.

Temperature °C Temperature °F Max. Working Pressure (bar) Max. Working Pressure (psi)
-29 to 38 -20 to 100 19.6 285
100 212 17.7 257
150 302 15.8 229
200 392 13.8 200
250 482 12.1 176
300 572 10.2 148
400 752 6.9 100
425 800 5.8 85

Maximum service temperature for A105N material: 425°C (800°F) .

4. Dimensional Data – 1-1/2″ (DN40) Class 150

Flanged Type (RF) – Dimensions in mm

Dimension Value
Face-to-Face Length (L) – RF 165 mm (6.50″)
Height – Open (H) 227 – 258 mm (approx.)
Handwheel Diameter (W) 160 – 180 mm
Raised Face Diameter 73 mm (2.88″)
Number of Bolt Holes 4
Bolt Hole Diameter 16 mm (0.62″)
Bolt Circle Diameter 98.4 mm (3.88″)
Weight – Flanged Type Approx. 12.5 – 19.5 kg

Threaded / Socket Weld Type – Dimensions in mm

Dimension Value
Face-to-Face Length (L) 121 – 135 mm (approx.)
Height – Open (H) 227 – 244 mm
Handwheel Diameter (W) 160 – 180 mm
NPT Thread Size 1-1/2″ NPT (per ASME B1.20.1)
Socket Weld Bore Diameter 49 mm (1.93″) approx.
Weight – Threaded/SW Type Approx. 6.9 – 8.2 kg

5. Applicable Standards Summary

Standard Description
API 602 Steel Gate, Globe, and Check Valves for Sizes DN 15 through DN 50 for Petroleum and Natural Gas Industries
ASME B16.34 Valve Flanged, Threaded, and Welding End Pressure-Temperature Ratings
ASME B16.10 Face-to-Face and End-to-End Dimensions of Valves
ASME B16.5 Pipe Flanges and Flanged Fittings
ASME B1.20.1 Pipe Threads, General Purpose (Inch)
ASME B16.11 Forged Steel Fittings, Socket-Welding and Threaded
API 598 Valve Inspection and Testing

6. Service Conditions

  • Suitable Media: Water, Oil, Steam, Gas, and Non-Corrosive Media

  • Temperature Range: -29°C to +425°C (-20°F to +800°F) for A105N material

  • Pressure Range: Class 150 (up to 19.6 bar @ ambient temperature)

  • Connection Options: Flanged (RF), NPT Threaded, Socket Weld

  • Operation: Handwheel (Standard) / Gearbox / Actuator (Optional)

7. Features & Options

  • Bolted Bonnet Design for Easy Maintenance

  • OS&Y (Outside Screw and Yoke) Construction

  • Flexible Graphite Packing for Reliable Stem Sealing

  • Renewable Seat Rings or Hardfaced Seats (Optional)

  • NACE MR0175 / ISO 15156 Compliance for Sour Service

  • Fugitive Emission Packing (ISO 15848 / TA-Luft)

  • By-Pass Connection (Optional)

  • Gear Operator for Larger Sizes or High Pressure

  • Extended Stem for Insulated Pipelines

Note: Dimensional data may vary slightly between manufacturers. For exact dimensions, refer to the specific manufacturer’s catalog or consult technical drawings .

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