20″-600LB-RF 3-Piece Trunnion Ball Valve Forged

20″-600LB-RF 3-Piece Trunnion Ball Valve Forged

Valve Type Trunnion Mounted Ball Valve
Nominal Size 20 Inch (DN500)
Pressure Rating Class 600 LB (PN100)
Body Construction 3-Piece Body
Body Entry Type Side Entry
Body Material Forged Steel ASTM A105N (standard); A350 LF2 / A182 F316 optional
Flange Connection RF (Raised Face) to ASME B16.5 Class 600
Operation Manual gear operator (standard); electric or pneumatic actuator (optional)
Application Large bore, high pressure pipelines in oil, gas, chemical, and other demanding services requiring high reliability and tight shut-off

20″ – 600LB – RF 3-Piece Forged Trunnion Ball Valve

Technical Data Sheet

  1. General Information

Item

Sự miêu tả

Loại van

Van bi gắn trục

Kích thước danh nghĩa

20 Inch (DN500)

Xếp hạng áp suất

Class 600 LB (PN100)

Cấu trúc thân máy

3-Piece Body

Body Entry Type

Side Entry

Vật liệu thân máy

Forged Steel ASTM A105N (standard); A350 LF2 / A182 F316 optional

Flange Connection

RF (Raised Face) to ASME B16.5 Class 600

Hoạt động

Manual gear operator (standard); electric or pneumatic actuator (optional)

Ứng dụng

Large bore, high pressure pipelines in oil, gas, chemical, and other demanding services requiring high reliability and tight shut-off

  1. Design & Manufacturing Standards

Tiêu chuẩn

Sự miêu tả

Design Code

API 6D / ASME B16.34 / ISO 14313 / BS 5351

Cấu trúc thân máy

3-piece, side entry, bolted, trunnion supported ball

Flange Dimensions

ASME B16.5 Class 600 RF

Face-to-Face Dimension

ASME B16.10 / API 6D (20″ Class 600 approx. 1194 mm)

Pressure-Temperature Rating

ASME B16.34

Inspection & Testing

API 598 / API 6D

Fire Safe Design

API 607 / API 6FA (optional)

Low Emission Test

ISO 15848-1 (optional)

Thiết bị chống tĩnh điện

API 6D / BS 5351 (standard)

Top Flange

ISO 5211 (for actuator mounting)

  1. Main Materials (Typical – can be customized)

Thành phần

Standard Material (Carbon Steel)

Optional Material (Low Temp / SS)

Body / Bonnet

Forged Steel ASTM A105N

ASTM A350 LF2 (low temp) / A182 F316 (SS)

Quả bóng

A105 + ENP (Electroless Nickel Plating)

A182 F316 (SS) / F51 (Duplex)

Stem / Trunnion

A182 F6a (13Cr) or 17-4PH

A182 F316 / Inconel / Monel

Seat Support Ring

A105 + ENP

A182 F316 / F51

Seat Sealing Material

Reinforced PTFE (RPTFE)

PEEK, Nylon, Metal hardfacing (Stellite)

Seat Spring

Inconel X-750

17-7PH Stainless Steel

Stem Bearing

PTFE + Stainless Steel

Self-lubricating composite

Packing

Flexible graphite / PTFE

Low emission packing (ISO 15848)

Gaskets

Flexible graphite + SS spiral wound

Metal ring gasket

Fasteners

Alloy Steel A193 B7 (zinc plated)

Stainless Steel A193 B8

Note: A105 and A105N are the same material; A105N is normalized.

  1. Outline Dimensions & Weight

Dimension Parameter

Value (Typical, API 6D)

Face-to-Face Length L

Approx. 1194 mm (47.0 inches)

Full Bore Diameter

Approx. 489 mm

Flange Outer Diameter D

Approx. 813 mm (32.0 inches)

Bolt Circle Diameter K

Approx. 724 mm

Flange Thickness C

Approx. 89 mm

Number / Diameter of Bolt Holes

24 × 45 mm (1-5/8 inches)

Raised Face Diameter

Approx. 584 mm

Overall Height (with gear operator) H

Approx. 810 mm

Valve Weight (excluding actuator)

Approx. 3650 kg

Gear Operator Weight (reference)

Approx. 250 – 350 kg (depending on model)

 Dimensions above are typical references. Final dimensions to be confirmed with manufacturer’s drawing.

  1. Pressure-Temperature Rating (ASME B16.34 – Carbon Steel Group 1.1)

Temperature (°C)

Max. Working Pressure (bar)

Max. Working Pressure (psig)

-29 ~ 38

102.0

1480

100

97.9

1420

150

92.4

1340

200

86.9

1260

250

82.7

1200

300

71.7

1040

350

62.1

900

400

51.7

750

425

45.9

665

Data based on ASME B16.34 Material Group 1.1 (A105 / A216 WCB / A350 LF2). Maximum allowable working pressure decreases with increasing temperature. For stainless steel bodies (Group 2.1), pressure-temperature ratings differ.

  1. Performance Data

Tham số

Value

Xếp hạng áp suất

Class 600 (102 bar @ 38°C)

Shell Test Pressure (water)

154 bar (approx. 2230 psig)

High-Pressure Seat Test (water)

113 bar (approx. 1635 psig)

Low-Pressure Air Seat Test

6 bar (approx. 87 psig)

Allowable Differential Pressure

Full rated pressure, bi-directional

Leakage Rate (soft seat)

Zero leakage (ISO 5208 Rate A / API 598 Rate A)

Leakage Rate (metal seat)

Class IV – V (API 598)

Temperature Range (RPTFE seat)

-29°C ~ +260°C

Temperature Range (PEEK seat)

-50°C ~ +315°C

Suitable Media

Water, oil, natural gas, chemical media, steam, etc.

Loại van

3-piece trunnion ball valve, full bore, bi-directional sealing, double block & bleed (DBB)

Automatic Cavity Pressure Relief

Standard (seat retraction relieves cavity pressure)

Blow-out Proof Stem

Tiêu chuẩn

Thiết bị chống tĩnh điện

Tiêu chuẩn

  1. Key Design Features
  • Trunnion mounted ball – Ball is supported by upper and lower stem bearings; line pressure forces are absorbed by the trunnion bearings, ensuring low operating torque and stable sealing performance, especially for large bore and high pressure applications.
  • 3-piece side entry body – Bolted 3-piece construction allows inline maintenance without removing the valve from the pipeline.
  • Double block & bleed (DBB) – Upstream and downstream independent seat sealing provides bi-directional shut-off with zero leakage; installation is non-directional.
  • Spring-energized seats – Pre-loaded springs maintain seat-to-ball contact even at low pressure, ensuring reliable sealing.
  • Automatic cavity pressure relief – When the valve is in the fully open or fully closed position, excess pressure trapped in the body cavity can be relieved by seat retraction, protecting the valve.
  • Fire safe design (optional) – If the non-metallic seat is softened or destroyed by fire, the metal sealing surface of the seat support ring contacts the ball to provide secondary metal-to-metal sealing, compliant with API 607 or API 6FA. (API 607 6th Edition now covers the scope formerly addressed by API 6FA.)
  • Blow-out proof stem – Stem is designed with anti-blowout retention, ensuring it cannot be accidentally ejected under pressure.
  • Anti-static device – A spring-loaded anti-static device provides electrical continuity between the ball, stem, and body, preventing static charge accumulation.
  • Emergency sealant injection – Sealant injection fittings are provided on the stem and seat areas; sealant can be injected to temporarily stop leakage in an emergency.
  • Full bore design – The valve bore matches the pipeline internal diameter, allowing pipeline pigging with minimal flow resistance.
  1. Actuation Options

Actuation Type

Nhận xét

Manual gear operator

Standard configuration, with position indicator and mechanical stop

Electric actuator

On-off or modulating (4-20mA); direct mounting on ISO 5211 top flange

Pneumatic actuator

Double-acting or spring-return; with solenoid valve and limit switches

Hydraulic / Gas-over-oil actuator

For emergency shut-down on long-distance pipelines

  1. Ordering Information

Please provide the following when ordering:

  1. Valve size (20″), pressure rating (Class 600)
  2. Body material (A105 / A350 LF2 / F316) and NACE MR0175 requirement
  3. Seat material (RPTFE / PEEK / metal seated)
  4. Flange standard and facing (RF / RTJ)
  5. Media name, temperature, and pressure
  6. Actuation type (gear operator / electric / pneumatic)
  7. Special requirements (fire-safe API 607, anti-static, low emission packing ISO 15848, etc.)
  8. Third-party inspection requirement (BV, DNV, TÜV, etc.)

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