2″-2500LB-RTJ Close Die Forged Gate Valve

2″-2500LB-RTJ Close Die Forged Gate Valve

Product Name Forged Gate Valve, Bolted Bonnet, Outside Screw & Yoke (OS&Y)
Nominal Size 2″ (DN50)
Pressure Rating Class 2500 (42 MPa / 6090 psi)
Connection Type Ring Type Joint (RTJ) – Raised Face not applicable
Flange Standard ASME B16.5 (RTJ groove per ASME B16.20)
Design Standard ASME B16.34 / API 602 (for forged small bore gate valves)
Face-to-Face Dimension ASME B16.10 – 216 mm (8.50″) for Class 2500

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2″-2500LB-RTJ Close Die Forged Gate Valve – Technical Data Sheet

Item

Спецификация

Product Name

Forged Gate Valve, Bolted Bonnet, Outside Screw & Yoke (OS&Y)

Номинальный размер

2″ (DN50)

Номинальное давление

Class 2500 (42 MPa / 6090 psi)

Connection Type

Ring Type Joint (RTJ) – Raised Face not applicable

Flange Standard

ASME B16.5 (RTJ groove per ASME B16.20)

Design Standard

ASME B16.34 / API 602 (for forged small bore gate valves)

Face-to-Face Dimension

ASME B16.10 – 216 mm (8.50″) for Class 2500

Manufacturing Process

Close die forging – dense grain structure, no porosity, superior mechanical properties

Body/Bonnet Material

A105N (Forged Carbon Steel, Normalized)

Optional: F304, F316, F22 (alloy)

Trim Material

API 602 Trim 8 (13Cr + Stellite) or as specified

Stem Design

Rising stem, non-rotating (OS&Y)

Операция

Handwheel (standard); gear, pneumatic, or electric actuator optional

Диапазон температур

-29°C ~ +425°C (for A105N with flexible graphite packing)

Applicable Media

Water, steam, oil, gas, high-pressure hydrocarbons, chemical services

  1. Main Parts & Materials (Close Die Forged)

Компонент

Material (Standard)

Optional Material

Тело

A105N (close die forged)

F304, F316, F22 (1.25Cr-0.5Mo), F91

Bonnet

A105N (forged)

Same as body

Ворота

F6a (13Cr) + Stellite overlay

304 SS, 316 SS, Monel

Seat Rings

Integral or threaded, Stellite faced

Same as gate

Корень

F6a (13Cr) – rolled threads

17-4PH, Inconel, Monel

Packing

Flexible graphite + stainless steel braid

PTFE (for lower temp)

Gasket

Spiral wound (SS + graphite) or solid metal ring

For bonnet flange

Bonnet Bolting

A193 B7 / A194 2H

A193 B8 / A194 8 (for SS body)

Handwheel

Ductile iron or carbon steel

  1. Dimensions & Weight (Class 2500, RTJ, ASME B16.10)

Dimension

mm

inch

Face-to-Face (L)

216

8.50

Flange Outer Diameter (D)

235

9.25

Flange Thickness (C)

42.5

1.67

RTJ Groove Size

R23 (per ASME B16.20)

Number of Bolt Holes

8

Bolt Hole Diameter

29

1.14

Bolt Circle Diameter (K)

190.5

7.50

Overall Height (H) – closed

~550 – 650 (depends on actuator)

Weight (valve only)

~50 – 65 kg

Note: RTJ flange faces are grooved; no raised face. Dimensions follow typical Class 2500 flange dimensions per ASME B16.5.

  1. Close Die Forging Advantages
  • Superior Mechanical Properties – Uniform, dense grain structure without porosity, inclusions, or shrinkage defects.
  • High Strength – Ideal for extreme pressures up to Class 2500 (42 MPa).
  • Excellent Toughness – A105N normalizing improves low‑temperature impact resistance.
  • Leak‑Free Integrity – Forged body eliminates weld seams and casting defects.
  1. Performance Features
  1. High Pressure / High Temperature Capability – Designed and tested for Class 2500 service, suitable for steam, boiler feedwater, and high‑pressure hydrocarbon lines.
  2. RTJ Connection – Ring type joint ensures metal‑to‑metal seal, ideal for high‑pressure and high‑temperature applications where spiral wound gaskets may fail.
  3. OS&Y (Rising Stem) – Stem threads are outside the pressure boundary, protecting them from media corrosion and allowing visual position indication.
  4. Hardfaced Trim (Stellite) – Gate and seat rings have Stellite overlay for wear resistance and long cycle life in severe service.
  5. Flexible Graphite Packing – Provides low emission performance, suitable for steam and thermal cycling.
  6. Close Die Forged Body – No castings, no porosity; fully traceable material.
  1. Приложения
  • Power plants (high‑pressure steam, boiler isolation)
  • Oil & gas production (wellheads, manifold, high‑pressure pipelines)
  • Refineries and petrochemical plants (high‑temperature hydrocarbon service)
  • Hydraulic systems (extreme pressure)
  • Chemical processing (with appropriate material upgrade to stainless or alloy)
  1. Testing & Compliance

Test

Standard / Requirement

Shell Test

1.5 × Class 2500 (63 MPa / 9135 psi) – no visible leakage

Seat Test

1.1 × Class 2500 (46.2 MPa / 6700 psi) – per API 598

Backseat Test

1.1 × Class 2500

Low‑Pressure Seat Test

0.6 MPa (87 psi) – acceptable leakage per API 598 (Table 5 for gate valves)

Material Traceability

EN 10204 3.1 (standard for forged components)

NACE Compliance

Optional (MR0175 / MR0103)

Marking

Per MSS SP‑25 / API 602

  1. Actuation Options (Beyond Standard Handwheel)

Actuator

Описание

Gear Operator

For easier manual operation at high pressure

Pneumatic Actuator

Double‑acting or spring‑return for remote on‑off

Electric Actuator

For automated control with position feedback

  1. Ordering Information

Please specify:

  • Valve size: 2″
  • Pressure rating: Class 2500
  • End connection: RTJ (ring type joint)
  • Body material: A105N / F22 / F316
  • Trim: API 602 Trim 8 (13Cr + Stellite) or other
  • Operation: Handwheel / Gear / Pneumatic / Electric
  • Special requirements: NACE MR0175, low‑emission packing, positive material identification (PMI), etc.

Notes:

  • Close die forging ensures the highest integrity for Class 2500 service. A105N provides good toughness at low temperatures.
  • RTJ gaskets (e.g., oval or octagonal rings) are required for assembly – not included with valve unless specified.
  • Dimensions and weights are typical; final values depend on manufacturer and specific design (e.g., full bore or reduced bore).
  • For high‑temperature applications above 425°C, upgrade to F22 (chrome‑moly) or F91 material.

ГАРАНТИЯ:

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