Flanged & Bw Ends Forged Globe Valve 150LBS - 2500LBS

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 FORGED GATE VALVE

 FORGED GLOBE VALVE

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 Y TYPE STRAINER

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Flanged and BW Ends Forged Globe Valve - API602, Class 150 to 2500, 1/2 inch to 2 inch

China Industrial Flanged and BW Ends Forged Globe Valve Supplier, Exporter, Manufacturer. The API 602 flanged and butt weld forged globe valve covers the full pressure range Class 150Lb to 2500Lb, with integral flanged, welded flanged (RF, RTJ) and Butt Weld (BW) ends. OS&Y rising stem, bolted bonnet, welded bonnet or pressure seal bonnet (PSB) construction. Plug disc and needle disc supplied. Flanged ends allow easy installation and removal without welding, while BW ends provide permanent leak-tight connection for high-pressure service.

Sizes: 1/2″, 3/4″, 1″, 1-1/4″, 1-1/2″, 2″ (DN15 to DN50). Body materials include carbon steel (A105, LF2), alloy steel (F5, F11, F22), stainless steel (F304, F316) and duplex steel (F51). NACE MR 0175 on request.

Specifications for Flanged and BW Ends Forged Globe Valve 150LBS – 2500LBS

• Design and Manufacture: API 602, BS 5352, ASME B16.34

• Pressure Ratings: ANSI Class 150#, 300#, 600#, 900#, 1500# and 2500# (full range)

• Constructions: OS&Y, Bolted Bonnet (B.B.), Welded Bonnet (W.B.) and Pressure Sealed Bonnet (PSB)

• Bore Type: Full Bore / Reduced Bore

• Disc Type: Plug Disc, Needle Disc

• Size Range: 1/2 inch to 2 inch (DN15 to DN50)

• Flanged Ends: Integral Flanged, Welded Flanged, RF and RTJ facing per ANSI B16.5

• Butt Weld Ends: Per ANSI B16.25, permanent leak-tight connection for high-pressure service

• Body Materials: A105, LF2, F5, F11, F22, F304, F316, F51 or Equivalent

• Trim Materials: 13Cr, Stellite, Stainless Steel and various trim options available

• Sour Service: NACE MR 0175 on Request

• Inspection and Test: API 598

• Temperature Range: -29°C to 425°C (-20°F to 800°F)

✓ Flanged ends eliminate welding at site; BW ends provide permanent leak-tight connection, covering Class 150 to 2500 in one page

Flanged and BW Globe Valve Material and End Connection Selection

Body Material	Grade	Recommended Pressure Class	Best End Connection
Carbon Steel	A105, A105N, LF2	Class 150 to 2500	Flanged RF for low to medium, BW for high pressure
Alloy Steel	F5, F11, F22	Class 600 to 2500	Flanged RTJ or BW for high-temperature service
Stainless Steel	F304, F304L, F316, F316L	Class 150 to 2500	Flanged RF or BW for corrosive service
Duplex Stainless Steel	F51, F53	Class 900 to 2500	Flanged RTJ or BW for high-chloride and sour service

Reference: API 602, ASME B16.34. Material and end connection selection depends on pressure class, temperature and fluid corrosiveness. Contact us for confirmed material certificate.

Pressure Class and End Connection Comparison

Pressure Class	Design Pressure (bar)	Design Pressure (psi)	Recommended End
Class 150	19.6	285	Flanged RF
Class 300	51	740	Flanged RF
Class 600	102	1,480	Flanged RF or RTJ
Class 900	153	2,220	Flanged RTJ or BW
Class 1500	260	3,750	Flanged RTJ or BW
Class 2500	430	6,250	BW or RTJ

Reference: ASME B16.34. Design pressure values are for reference only and vary with material and temperature. End connection recommendation is a general guide; final selection depends on project specification.

Flanged and BW Ends Forged Globe Valve Dimensions

NPS (inch)	DN (mm)	L (mm) - Class 150	L (mm) - Class 300	L (mm) - Class 600
1/2″	15	108	140	165
3/4″	20	117	152	190
1″	25	127	165	216
1-1/4″	32	140	178	229
1-1/2″	40	165	190	241
2″	50	178	216	292

Reference: ASME B16.10 short pattern for flanged globe valves. RF and RTJ facing share the same FTF dimensions. BW ends dimensions may differ. Contact us for confirmed drawing and quotation.

Flanged and BW Ends Forged Globe Valve Applications

• Oil and Gas Industry: Wellhead equipment, manifold and flowline throttling and isolation requiring flanged or BW ends.

• Power Generation: High-pressure steam throttling, boiler drains, turbine bypass lines with flanged or BW connections.

• Petrochemical: Hydrocarbon processing, catalytic cracking, reformer units requiring full class coverage.

• Chemical Processing: Corrosive fluid throttling and isolation with flanged RTJ or BW ends.

• Pipeline Systems: Flanged ends for easy maintenance access; BW ends for permanent high-pressure piping.

• Water Treatment: High-pressure pump isolation, desalination, boiler feed water.

FAQ - Flanged and BW Ends Forged Globe Valve 150LBS – 2500LBS

Q1: What is the difference between flanged and butt weld (BW) ends?

A: Flanged ends allow easy installation and removal without welding, making them ideal for pipeline systems requiring frequent maintenance. Butt weld (BW) ends provide a permanent, leak-tight connection preferred for high-pressure and high-temperature applications. Both are available in sizes 1/2 inch to 2 inch with Class 150 to 2500 coverage.

Q2: What is the difference between RF and RTJ flange facing?

A: RF (Raised Face) is the most common flange facing, suitable for low to medium pressure services up to Class 600. RTJ (Ring Type Joint) is a metal-to-metal seal design used for high-pressure and high-temperature services, typically Class 900 and above. RTJ provides superior sealing performance under extreme conditions.

Q3: What is the difference between integral flange and welded flange?

A: Integral flange is forged together with the valve body, providing higher strength and better leak-tightness for high-pressure applications. Welded flange is welded onto the valve body, offering more flexibility in flange facing and material combinations. Both are available for choice.

Q4: How do I choose the pressure class for my application?

A: Class 150 to 300 suits low to medium pressure utility and process lines. Class 600 to 900 fits general high-pressure process, refinery and power plant service. Class 1500 to 2500 is for high-pressure steam, gas injection, wellhead equipment and natural gas compressor lines. Final selection depends on design pressure, temperature and material derating.

Q5: What materials are available for flanged and BW globe valves?

A: Standard body materials include carbon steel (A105, A105N, LF2), alloy steel (F5, F11, F22), stainless steel (F304, F304L, F316, F316L) and duplex stainless steel (F51, F53). Trim options include 13Cr, Stellite, SS304, SS316 and F6a. Material selection depends on operating temperature, pressure and fluid corrosiveness.

Q6: Is NACE MR 0175 available for flanged and BW globe valves?

A: Yes, NACE MR 0175 compliance is available on request for sour oil and gas applications. This includes material selection, hardness control and testing requirements to ensure resistance to sulfide stress cracking. Please specify NACE MR 0175 in your inquiry.