4″*3″-1500LB F316L 3-Piece Trunnion Ball Valve

4″*3″-1500LB F316L 3-Piece Trunnion Ball Valve

Nominal Size 4″ x 3″ (End Connections: 4″ / Bore: 3″)
Pressure Rating Class 1500 (PN 250)
Valve Type Trunnion Mounted Ball Valve
Body Construction 3-Piece (End Caps + Center Body)
End Connections Flanged – ASME B16.5 Class 1500 (RF or RTJ)
Seat Type Metal to Metal (Hardfaced)
Temperature Range –29°C ~ +500°C (depending on hardfacing material)
Suitable Media High temperature steam, thermal oil, abrasive slurries, corrosive fluids, high pressure gas/liquid
Fire Safe Design API 607 / ISO 10497 (inherently fire safe)

  • aboutimg3
  • aboutimg4
  • aboutimg5


TECHNICAL DATA SHEET

Product: 3-Piece Trunnion Mounted Ball Valve – Metal Seated
Kích cỡ: 4″ x 3″ (Reducer Bore / Reduced Port)
Cấp áp suất: Class 1500
Vật liệu thân máy: F316L (ASTM A182 F316L)
Seat Type: Metal‑to‑Metal Seated
Design: 3-Piece Body, Trunnion Ball

  1. Basic Specifications

Tham số

Value

Kích thước danh nghĩa

4″ x 3″ (End Connections: 4″ / Bore: 3″)

Xếp hạng áp suất

Class 1500 (PN 250)

Loại van

Van bi gắn trục

Cấu trúc thân máy

3-Piece (End Caps + Center Body)

End Connections

Flanged – ASME B16.5 Class 1500 (RF or RTJ)

Seat Type

Metal‑to‑Metal (Hardfaced)

Phạm vi nhiệt độ

–29°C ~ +500°C (depending on hardfacing material)

Suitable Media

High‑temperature steam, thermal oil, abrasive slurries, corrosive fluids, high‑pressure gas/liquid

Fire Safe Design

API 607 / ISO 10497 (inherently fire‑safe)

  1. Main Features
  • Trunnion Mounted Ball: Ball is supported by upper and lower trunnion bearings, reducing operating torque and ensuring smooth operation under high differential pressure. Ideal for large sizes and high‑pressure applications.
  • Reduced Bore (4″ x 3″): 4″ flanged connections with a 3″ internal bore reduces weight and cost while maintaining adequate flow capacity.
  • 3-Piece Body Construction: Center body with bolted end caps allows easy in‑line maintenance – seats, ball, and seals can be accessed without removing the entire valve from the pipeline.
  • Metal‑to‑Metal Seating: Ball and seats are hardfaced with wear‑resistant alloys (e.g., tungsten carbide, chromium carbide, or Stellite). Provides exceptional durability in high‑temperature, abrasive, and erosive services.
  • Spring‑Loaded Seats: Metal seats are typically pre‑loaded with Inconel springs to maintain continuous contact with the ball, ensuring tight shut‑off even under low pressure or thermal cycling.
  • Double Block & Bleed Capability: With two independent metal seats, the cavity between seats can be vented or monitored.
  • Anti‑Static Device: Ensures electrical continuity between ball, stem, and body.
  • Blowout‑Proof Stem: Stem is designed to prevent ejection under pressure.
  1. Material List (Metal Seated Configuration)

Item

Part

Vật liệu

1

Body (Center)

F316L (ASTM A182 F316L)

2

End Caps (2 pcs)

F316L (ASTM A182 F316L)

3

Quả bóng

F316L + Tungsten Carbide (WC) Coating / Chromium Carbide (CrC) Coating

4

Seat Rings (2 pcs)

F316L + Stellite 21 Hardfacing

5

Thân cây

F316 / 17-4PH / Inconel 718

6

Trunnion Bearings

Reinforced PTFE / Carbon Graphite / Metal‑lined

7

Stem Packing

Flexible Graphite + Braided Graphite

8

Body Gaskets

Spiral Wound, F316L + Graphite

9

Bolting

A193 B8M / A194 B8M (316 stainless steel)

10

Seat Springs

Inconel X‑750 / Inconel 718

Note: Hardfacing materials can be customized based on media and temperature (e.g., Stellite 6, Stellite 21, tungsten carbide).

  1. Hardfacing Options for Metal Seats

Hardfacing Material

Hardness (HRC)

Max Temperature

Typical Application

Tungsten Carbide (WC)

65 – 72

~400°C

Severe abrasive service, slurry, sand

Chromium Carbide (CrC)

58 – 65

~800°C

High‑temperature, moderate abrasion

Stellite 21

35 – 45

~650°C

General high‑temperature, corrosion, galling resistance

Stellite 6

38 – 48

~800°C

High‑temperature steam, thermal oil

  1. Dimensions & Structural Data (Flanged Ends)

Tham số

Value

Face‑to‑Face Length (L)

~483 mm (per ASME B16.10 for Class 1500, 4″ valve)

Flange Standard

ASME B16.5 Class 1500

Flange Facing

Raised Face (RF) or Ring Type Joint (RTJ)

Bore Diameter (Reduced)

3″ (DN80) – approximately 76 mm

End Connection Size

4″ (DN100) flanged

Approx. Weight

~190 – 260 kg (depending on configuration)

Operating Torque

~600 – 1200 N·m (metal seated, trunnion type)

Note: Final dimensions to be confirmed by manufacturing drawings.

  1. Design & Testing Standards

Item

Tiêu chuẩn

Design & Manufacture

API 6D, API 608, ASME B16.34

Flanged End Connections

ASME B16.5 Class 1500

Pressure‑Temperature Rating

ASME B16.34

Fire Safe Test

API 607 or API 6FA (metal seated inherently fire‑safe)

NACE Compliance

NACE MR0175 / ISO 15156 (optional)

Pressure Testing

API 598 or ISO 5208

Low‑Pressure Air Test

0.6 MPa (6 bar) – metal seated: acceptable leakage per API 598 (typically ≤ 10‑20 ml/minute/inch of seat diameter)

High‑Pressure Hydrostatic Test

1.5 × rated pressure (body), 1.1 × rated pressure (seat)

  1. Metal Seated vs. Soft Seated Comparison

Feature

Metal Seated

Soft Seated (PTFE/PEEK)

Phạm vi nhiệt độ

–29°C ~ +500°C

–196°C ~ +260°C

Leakage Rate

API 598 Class V / VI (low but not bubble‑tight)

Bubble‑tight (zero leakage)

Abrasion Resistance

Excellent

Poor

Fire Safety

Inherently fire‑safe

Requires fire‑safe design (API 607)

Torque

Higher

Lower

Suitable Media

Abrasive, high‑temp, steam, slurry

Clean fluids, cryogenic, chemicals

  1. Operating Torque & Actuator Sizing
  • Higher Torque Requirement: Metal seated valves require significantly higher torque than soft seated valves due to metal‑to‑metal contact and spring preload.
  • Trunnion Advantage: Despite higher torque, the trunnion design reduces torque compared to a floating ball of the same size.
  • Safety Factor: Actuator output torque should be at least 1.3 – 1.5 times the maximum measured valve torque.
  • Breakaway Torque: Especially critical after prolonged closure; may be higher than running torque.
  1. Typical Applications
  • High‑Temperature Processes: Refinery thermal cracking units, FCCU slurry, steam systems up to 500°C.
  • Abrasive Media: Catalyst lines, mining slurries, sand handling.
  • Sour Service: With NACE MR0175 materials, suitable for high‑pressure sour gas.
  • Offshore & Subsea: Corrosion‑resistant F316L with metal seats for reliability in demanding environments.
  • Chemical Processing: Handling corrosive fluids at elevated temperatures.
  1. Ordering Information

When ordering, please specify:

  • Size: 4″ x 3″ (Reduced Bore)
  • Pressure Class: Class 1500
  • Body Material: F316L
  • Seat Type: Metal Seated (specify hardfacing: WC / CrC / Stellite)
  • End Connections: Flanged – ASME B16.5 Class 1500 (RF or RTJ)
  • Optional Features: NACE MR0175, cryogenic trim (if required), spring‑loaded seats, actuator mounting

This data sheet reflects the metal seated configuration for the 4″ x 3″ – 1500LB F316L 3-Piece Trunnion Ball Valve. For full bore versions, soft seated options, or additional customizations, please contact us with your specific requirements.

CAM KẾT:

SAVVY VALVES cam kết cung cấp chất lượng sản phẩm vượt trội và dịch vụ sau bán hàng không phải lo lắng. Van của chúng tôi được đảm bảo cung cấp tuổi thọ tối thiểu là 12 tháng, trong thời gian đó chúng tôi sẽ cung cấp tất cả các phụ tùng thay thế cần thiết và hướng dẫn bảo trì chi tiết miễn phí. Trong thời gian bảo hành, nếu xảy ra bất kỳ hư hỏng nào không phải do con người gây ra, chúng tôi sẽ thay thế các thành phần miễn phí và cung cấp hỗ trợ kỹ thuật chuyên nghiệp. Sau khi hết hạn bảo hành, khách hàng chỉ cần trả chi phí cho các phụ tùng thay thế, trong khi vẫn được hưởng lợi từ các dịch vụ bảo trì giảm giá. Mục tiêu của chúng tôi là giúp khách hàng giảm chi phí vận hành và nâng cao hiệu quả sản xuất thông qua chất lượng đáng tin cậy và hỗ trợ sau bán hàng toàn diện. Cho dù là yêu cầu kỹ thuật hay nhu cầu bảo trì, nhóm chuyên gia của chúng tôi sẽ phản hồi nhanh chóng để đảm bảo hệ thống van của bạn luôn duy trì hiệu suất tối ưu.

Nếu bạn quan tâm đến sản phẩm của chúng tôi, bạn có thể để lại thông tin tại đây và chúng tôi sẽ sớm liên hệ với bạn.