4"-600LB-RF F316L Metal Seated Trunnion Ball Valve
4"-600LB-RF F316L Metal Seated Trunnion Ball Valve - Image 2
4"-600LB-RF F316L Metal Seated Trunnion Ball Valve - Image 3
4"-600LB-RF F316L Metal Seated Trunnion Ball Valve - Image 4

4″-600LB-RF F316L Metal Seated Trunnion Ball Valve

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Description

Product Technical Data Sheet

Product Name: Flanged Trunnion Ball Valve – Metal Seated
Model / Size: 4″ – 600LB – RF / F316L Body / Trunnion Type / Metal Seat

1. General

This product is a split‑body, trunnion‑mounted ball valve with metal‑to‑metal seating and flanged ends. Designed for high‑pressure, high‑temperature, and abrasive or erosive service conditions. Suitable for applications in oil & gas, refining, petrochemical, power generation, and critical process industries where soft‑seated valves are not applicable.

The metal seat construction provides excellent wear resistance, extended cycle life, and reliable shut‑off under severe operating conditions.

2. Basic Parameters

Parameter Value
Nominal Size (NPS) 4 inch (DN100)
Pressure Class 600LB (Class 600)
Type Trunnion Mounted
Seating Type Metal‑to‑Metal (Hardfaced)
End Connection Flanged, Raised Face (RF)
Applicable Media High‑temperature steam, hydrocarbon, corrosive media, abrasive slurries, high‑pressure gas/liquid
Temperature Range -29°C ~ 450°C (depending on trim material and hardfacing)

3. Design & Manufacturing Standards

Item Standard
Design & Manufacture API 6D / ASME B16.34 / ISO 14313
Flange Dimensions ASME B16.5 Class 600
Face‑to‑Face Dimension ASME B16.10 (typically 432 mm)
Pressure‑Temperature Rating ASME B16.34
Inspection & Testing API 598 / API 6D (high‑pressure gas test optional)
Fire Safety API 607 / API 6FA (optional)

4. Main Component Materials

No. Part Material (Typical Configuration)
1 Body F316L (Austenitic Stainless Steel, Low Carbon)
2 End Cap / Side Body F316L
3 Ball F316L / F304 + Hardfacing (Stellite / Tungsten Carbide)
4 Seat Ring F316L + Hardfacing (Stellite 6 / 21)
5 Seat Spring Inconel X‑750 / Hastelloy
6 Stem F316L / F51 (Duplex) / Inconel
7 Stem Bearing Reinforced PTFE / Metal‑backed Graphite / Stellite
8 Packing Flexible Graphite (with anti‑extrusion rings)
9 Gland & Bolting Stainless Steel (A193 B8M / A194 8M)
10 Grease Fitting Stainless Steel (for emergency sealant injection)
11 Bleed / Drain Valve Stainless Steel
Note: Hardfacing options include Stellite 6, Stellite 21, Tungsten Carbide, or Chromium Carbide depending on service conditions.

5. Dimensions & Weight

Dimension Value
Face‑to‑Face (L) 432 mm (ASME B16.10 long pattern)
Flange OD (D) Approx. 327.2 mm (ASME B16.5 4″ Class 600)
Height (H) (handwheel) Approx. 600 – 750 mm
Weight Approx. 100 – 130 kg (depending on gear operator and trim)

6. Operating Data

Parameter Value
Operation Worm gear (handwheel) / Optional: Pneumatic / Electric actuator
Pressure Rating Class 600 (PN100 / 10.0 MPa / 100 bar)
Shell Test Pressure 15.0 MPa (150 bar)
High‑Pressure Seat Test (Water) 11.0 MPa (110 bar)
Low‑Pressure Seat Test (Air) 0.6 MPa (6 bar)
Leakage Rate (Metal Seat) Class V / Class VI (per FCI 70‑2 / API 598 optional)
Max. Operating Torque Refer to actuator sizing chart

7. Features

  1. Trunnion Mounted Ball
    The ball is supported by upper and lower stem bearings, reducing operating torque and ensuring stable, smooth operation under high differential pressure.

  2. Metal‑to‑Metal Seating
    Ball and seat rings are hardfaced with wear‑resistant alloys (e.g., Stellite, Tungsten Carbide). Suitable for high‑temperature, abrasive, and erosive media, with extended cycle life.

  3. Spring‑Energized Seat Design
    Seat rings are spring‑loaded to maintain continuous contact with the ball surface, compensating for thermal expansion and providing consistent sealing across a wide temperature range.

  4. Double Piston Effect (DPE) or Single Piston Effect (SPE)
    Seat design options allow for bidirectional sealing or Double Block & Bleed (DBB) functionality, depending on application requirements.

  5. Blow‑out Proof Stem
    Stem is designed with integral backseat and anti‑blowout construction to ensure safety under all operating conditions.

  6. Fire‑Safe Design (Optional)
    Secondary graphite seal in case of fire, meeting API 607 / API 6FA requirements.

  7. Anti‑static Device
    Continuous electrical path between ball, stem, and body to prevent static charge accumulation.

  8. Emergency Grease Injection
    Grease fittings on body and stem allow injection of sealant for temporary emergency sealing.

  9. Cavity Relief
    Body cavity pressure relief prevents over‑pressurization due to thermal expansion.

8. Optional Features

Option Description
NACE MR0175 / MR0103 Material compliance for sour service (H₂S)
High‑Pressure Gas Test Seat test with nitrogen or helium for critical service
Low‑Temperature Service Impact‑tested materials for cryogenic applications
Extended Stem / Jacket For insulated pipelines or cryogenic applications
Actuation Pneumatic, electric, or hydraulic actuators with accessories
Special Hardfacing Tungsten Carbide, Chromium Carbide for extreme abrasive conditions

9. Ordering Information

Please confirm the following when placing an order:

  1. Size (4″) and pressure class (600LB);

  2. Body material (F316L);

  3. Flange standard (ASME B16.5 / HG/T 20615, etc.);

  4. Seat hardfacing material (Stellite / Tungsten Carbide / Chromium Carbide);

  5. Seat design (SPE / DPE) and leakage rate requirement (Class V / Class VI);

  6. Fire‑safe certification (API 607 / API 6FA);

  7. NACE compliance (MR0175 / MR0103) for sour service;

  8. Actuation type (worm gear, pneumatic, electric);

  9. Test requirements (hydrostatic, high‑pressure gas);

  10. Special coatings or insulation.

Version: V1.0
Date: 2026

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