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Forged Steel Gate Valve with flanged ends and a black handwheel, designed for industrial pipeline applications.
Close-up detail of a Forged Steel Gate Valve, showing the gland flange secured by eyebolts for high-pressure sealing.
Forged Steel Flanged Gate Valve, DN25 (1 inch) and PN40 pressure rating
Rear view of a Forged Steel Flanged Gate Valve, showing the back of the yoke, handwheel, and flange connection details.

Industrial Forged Steel Flange Gate Valve

Technical Specifications:

  1. Designed and manufactured in accordance with API 602.
  2. End connections per the following standards:
    a) Socket weld dimensions: ANSI B16.11.
    b) NPT Threaded dimensions: ANSI B1.20.1. / BSP.
  3. Face-to-face dimensions in accordance with ASME B16.10-2023.
  4. Testing and inspection performed per API 598.
  5. Structural features: Bolted Bonnet (B.B.), Welded Bonnet (W.B.), Pressure Seal Bonnet (PSB), Outside Screw and Yoke (OS&Y).
  6. Materials conform to ANSI/ASTM standards.
  7. Primary materials include: A105(N), LF2, F304(L), F316(L), F51, F91, F11, F22, F321, etc.
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Product Summary

This Forged Steel Flange Gate Valve is built for longevity and reliability in demanding industrial applications. Its forged construction provides superior strength for high-pressure and high-temperature services, such as steam, oil, and gas pipelines. The flanged design guarantees a robust connection and simplifies maintenance. Engineered for performance, it delivers exceptional value by minimizing downtime and reducing the total cost of ownership for procurement managers.

BrandSFAN VALVE OR "OEM"
Flow boreStandard bore or Full bore
MaterialCarbon steel, Stainless steel, Alloy steel or other
DimensionDN10(1/4") to DN100(4")
Class150~2500
MediumWater, oil &gas.
Temperature-196℃(cryogenic design) to 560℃
Valve test100% quantity tested before delivery
Valve guarantee18 months after shipments and 12 months after installed
PackingPlywood or carton cases
Delivery time7 days to 30 days
Place of OriginZhejiang, China

3D VIDEO

Catalog details:

Technical dimensional drawing of a flanged gate valve, showing cross-sectional views with key measurements labeled L (face-to-face), W (handwheel width), and H_OPEN (height when open). It also illustrates end connection variations for Butt Weld (LBW) and Ring Type Joint (LRTJ).

No.Part nameCarbon SteelCarbon SteelStainless SteelAlloy Steel
1BodyA105NLF2/LF3A182 F304A182 F11/F22
2SeatA182 F6a+STLA182 F6a+STLA182 F304+STLA182 F6a+STL
3WedgeA182 F6a+STLA182 F6a+STLA182 F304+STLA182 F6a+STL
4StemA276-410A276-410A276-304A276-410
5GasketGraphite+304Graphite+304Graphite+304Graphite+304
6Sealing RingGraphiteGraphiteGraphiteGraphite
7YokeA105NLF2/LF3A182 F304A182 F11/F22
8BonnetA105NA350 LF2/LF3A182 F304A182 F11/F22
9BoltA193 B7A320 L7A193 B8A193 B16
10PackingGraphiteGraphiteGraphiteGraphite
11Stem BushingA276-410A276-410A276-304A276-410
12GlandA105NLF2/LF3A182 F304A182 F11/F22
13Eye BoltA193B7A320 L7A193 B8A193 B7
14Stem NutA194 2HA194 2HA194 8A194 2H
15HandwheelA197A197A197A197

OS&Y typemmind(reduced bore)d(full bore)LHWWeight
(kg)
Class150151/2"9121081621003
Class150203/4"12171171621003.5
Class150251"17221272111255.5
Class150321.1/4"23281402381256.8
Class150401.1/2"283516525716010.4
Class150502"364417828218014.4
Class300151/2"9121401621003.6
Class300203/4"12171521621004.9
Class300251"17221652111257
Class300321.1/4"23281782381259.4
Class300401.1/2"283519025716013.3
Class300502"364421628218018
Class600151/2"9121651621004.2
Class600203/4"12171901621005.8
Class600251"17222162111258.8
Class600321.1/4"232822923812512.1
Class600401.1/2"283524125716015.6
Class600502"364429228218019.5
Class900151/2"9122161971257.2
Class900203/4"121522921112511.5
Class900251"152225423816015.6
Class900321.1/4"222627925716016.2
Class900401.1/2"273430527618022.6
Class900502"343836832024028.2
Class1500151/2"9122161971257.2
Class1500203/4"121522921112511.5
Class1500251"152225423816015.6
Class1500321.1/4"222627925716016.2
Class1500401.1/2"273430527618022.6
Class1500502"343836832024028.2
Class2500151/2"91221619712512.3
Class2500203/4"121522921112512.3
Class2500251"152225423816016.2
Class2500321.1/4"222627925716029.3
Class2500401.1/2"273430527618029.3
Class2500502"343836832024055

API598 Pressure Test Table

Test PressureClass 150Class 300Class 600Class 800
(Forge Steel Valve)		Class 900Class 1500Class 2500
Shell Test(MPa)3.07.515.421.022.537.563.0
High Pressure
Seal Test(MPa)		2.25.511.315.416.527.546.2
Low Pressure
Seal Test(MPa)		0.60.60.60.60.60.60.6
Test Temperature: 41℉（5℃)~≤122℉(50℃)

Your questions answered

Common questions

How can you trust SFANVALVE ?

For Sfanvalve’s standard products, we are willing to start production without any  payment in advance. We accept product inspection upon completion, and payment is only due once the inspection is passed. SFAN will then arrange shipment to your designated warehouse as per your requirements.

Yes. After receiving the contract, we will provide technical drawings. Production will commence based on these drawings once they are confirmed by both parties.

After receiving the contract and confirming the drawings, we will provide a production schedule and manufacture strictly according to it. We will provide photos or videos to share and make a record for every stage of the production process. If a serious delay occurs due to management error, we will arrange air shipment and bear all costs by air.”

The warranty period is 18 months from the date of shipment or 12 months from the date of installation, whichever occurs first.