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Forged stainless steel Ball Valve

Forged Stainless Steel Ball Valve

Size: DN15~DN400

Material: A351 CF8m/CF8/CF3, A216 Wcb, A352 Lcb/Lcc

Connection: Flange

Working Pressure: CLASS 150-900

Working Temperature: -20°C to 120°C

Applicable Medium: Oil, Gas, Water

Compliance/Certifications: API 6D, CE, ISO9001, Eac 010/032, API 607, Sil, Is

Product Overview

Forged Stainless Steel Ball Valves are premium, high-performance valves designed for critical industrial applications. Made from forged stainless steel, these valves offer superior strength, durability, and resistance to corrosion, making them ideal for demanding environments such as chemical processing, oil and gas, water treatment, and power generation.

Product Features

  • Forged or cast steel body construction with floating or trunnion-mounted design options to suit different pressure and service requirements
  • High-precision spherical machining combined with metal valve seats ensures tight shut-off and meets ANSI B16.104 Class VI leakage standards
  • Bi-directional metal-to-metal sealing in trunnion-mounted designs, providing reliable isolation in severe service conditions
  • Low operating torque achieved through an integrated diaphragm spring in the seat design, ensuring stable and smooth opening and closing
  • Fire-safe all-metal structure, maintaining sealing performance and operational safety under fire conditions
  • High-temperature capability up to 550 °C (1022 °F), with ball and seat surfaces treated by aerospace-grade high-speed spray welding for HRC 70–72 hardness
  • Multiple end connection options, including butt weld, socket weld, DIN flange, and ANSI flange, for flexible pipeline integration

Specification Parameters

Metal Seat Ball Valve (Forged) Drawing

Main external dimensions and connection dimensions:

Standard: GB | PN40

DNLDD1D2bfn-Φd
1003052351901622428-18
1253812702201882628-26
1504033002502182828-26
20050237532028534212-30
25056845038534538212-33
30064851545041042216-33
35076258051046546216-36
40083866058553550216-39

Standard: GB | PN63

DNLDD1D2bfn-Φd
1004062502001623028-26
1254322952401883428-30
1504953452802183628-33
20059741534528542212-36
25067347040034546212-36
30076253046041052216-36
35082660052546556216-39
40090267058553560216-42
Standard: GB | PN100
DNLDD1D2bfn-Φd
1004322652101624028-30
1255083152501884028-33
15055935529021844212-33
20066043036028552212-36
25078750543034560212-39
30083858550041068216-42
35088965556046574216-48
40099171562053578216-48

Standard: ANSI | 300LB

DNLDD1D2bfn-Φd
100305255200157.232.228-22
125381280235185.735.428-22
150403320269.9215.937212-22
200502380330.2269.941.7212-26
250568445387.4323.848.1216-30
300648520450.838151.3216-33
350762585514.4412.854.4220-33
400838650571.5469.957.6220-36

Standard: ANSI | 600LB

INDNLDD1D2bfn-Φd
4″100432275215.9157.245.178-25
5″125508330266.7185.751.578-30
6″150559355292.1215.954.7712-29
8″200660420349.2269.962.6712-32
10″250787510431.8323.870.5716-35
12″30083856048938173.7720-35
14″350889605527412.876.9720-38
16″400991685603.2469.983.2720-42

Standard: ANSI | 900LB

INDNLDD1D2bfn-Φd
4″100432290235157.251.578-32
5″125508350279.4185.757.878-36
6″150559380317.5215.962.6712-32
8″200660470393.7269.970.5712-38
10″250787545469.9323.876.9716-38
12″300838610533.438186.4720-38
14″350889640558.8412.892.8720-42
16″400991705616469.995.9720-45

Specification Applications

  • High-pressure and high-temperature service in oil & gas, refining, and petrochemical pipelines
  • Severe service conditions with abrasive media, solids, or dirty fluids where soft seats are unsuitable
  • Critical isolation and emergency shut-off systems requiring reliable metal-to-metal sealing
  • Steam, thermal oil, and hot gas lines in power generation and industrial plants
  • Long-term continuous operation where durability, fire safety, and minimal leakage are essential