4 Inch Duct Flange

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  • 100% Original Factory Steel Pipe Flanges And Flanged Fittings - Welding-neck Flange – Puyang

    100% Original Factory Steel Pipe Flanges And Flanged Fittings - Welding-neck Flange – Puyang

    Size 1/2″-60″(DN12-DN1500) Rating 150#, 300#, 400#, 600#, 900#, 1500#, 2500# Standard ANSI/ASMEB16.5, B16.47, B16.36, B16.48.BS4504, BS3293, MSSSP44, AWWA, EN1092-1, DIN, JIS2220, GB T9112-9124, GB/T 20592-2009, SH406, JB/T, GB/T 20615-2009, GB/T 2506-2005, JB/T 4703-2000 Certificate ABS; TUV; TS; CCS Introduction Welding neck flange have two forms (shapes), one with reducing neck as we called reducing weld neck flange; One with a even diameter of typical long neck named as long...
  • PriceList for 2.5 Flange - Threaded Flange – Puyang

    PriceList for 2.5 Flange - Threaded Flange – Puyang

    Size 1/2″-60″(DN12-DN1500) Rating 150#, 300#, 400#, 600#, 900#, 1500#, 2500# Standard ANSI/ASMEB16.5, B16.47, B16.36, B16.48.BS4504, BS3293, MSSSP44, AWWA, EN1092-1, DIN, JIS2220, GB T9112-9124, GB/T 20592-2009, SH406, JB/T, GB/T 20615-2009, GB/T 2506-2005, JB/T 4703-2000 Certificate ABS; TUV; TS; CCS Manufacturing Process ★ The forging, heat treatment after forging as the key working procedure, Heat treatment after forging and nondestructive inspection for special process. Int...
  • Factory directly supply Square Tube With Flange - Socket weleing Flange – Puyang

    Factory directly supply Square Tube With Flange - Socket weleing Flange – Puyang

    Size 1/2″-60″(DN12-DN1500) Rating 150#, 300#, 400#, 600#, 900#, 1500#, 2500# Standard ANSI/ASMEB16.5, B16.47, B16.36, B16.48.BS4504, BS3293, MSSSP44, AWWA, EN1092-1, DIN, JIS2220, GB T9112-9124, GB/T 20592-2009, SH406, JB/T, GB/T 20615-2009, GB/T 2506-2005, JB/T 4703-2000 Certificate ABS; TUV; TS; CCS Advantages Socket weld flange could replace threaded flange, to minimize the risky of leakage. No need to beveling before welding. Welding work outside of the pipe, will not penetr...
  • Wholesale Pe Flange - Slip-on Flange – Puyang

    Wholesale Pe Flange - Slip-on Flange – Puyang

    Size 1/2″-60″(DN12-DN1500) Rating 150#, 300#, 400#, 600#, 900#, 1500#, 2500# Standard ANSI/ASMEB16.5, B16.47, B16.36, B16.48.BS4504, BS3293, MSSSP44, AWWA, EN1092-1, DIN, JIS2220, GB T9112-9124, GB/T 20592-2009, SH406, JB/T, GB/T 20615-2009, GB/T 2506-2005, JB/T 4703-2000 Certificate ABS; TUV; TS; CCS Introduction: Slip on flange, also called SO flange. It’s a kind of flange slides over the pipe with internal design is slightly larger than the pipe. Since the inner diamete...
  • Wholesale Pe Flange - Blind Flange – Puyang

    Wholesale Pe Flange - Blind Flange – Puyang

    Size 1/2″-60″(DN12-DN1500) Rating 150#,300#,400#,600#,900#,1500#,2500# Standard ANSI/ASMEB16.5, B16.47, B16.36, B16.48.BS4504, BS3293, MSSSP44, AWWA, EN1092-1, DIN, JIS2220, GB T9112-9124, GB/T 20592-2009, SH406, JB/T, GB/T 20615-2009, GB/T 2506-2005, JB/T 4703-2000 Certificate ABS; TUV; TS; CCS Application The blind flange’s major function is totally to separate the production medium. Which preventing the shut-off valve close not tightly, then affecting production, and ev...
  • China wholesale Copper Nickel Flange Price List - Socket weleing Flange – Puyang

    China wholesale Copper Nickel Flange Price List - Socket weleing Flange – Puyang

    Size 1/2″-60″(DN12-DN1500) Rating 150#, 300#, 400#, 600#, 900#, 1500#, 2500# Standard ANSI/ASMEB16.5, B16.47, B16.36, B16.48.BS4504, BS3293, MSSSP44, AWWA, EN1092-1, DIN, JIS2220, GB T9112-9124, GB/T 20592-2009, SH406, JB/T, GB/T 20615-2009, GB/T 2506-2005, JB/T 4703-2000 Certificate ABS; TUV; TS; CCS Advantages Socket weld flange could replace threaded flange, to minimize the risky of leakage. No need to beveling before welding. Welding work outside of the pipe, will not penetr...
  • Chinese Professional Alloy 20 Flanges - Socket weleing Flange – Puyang

    Chinese Professional Alloy 20 Flanges - Socket weleing Flange – Puyang

    Size 1/2″-60″(DN12-DN1500) Rating 150#, 300#, 400#, 600#, 900#, 1500#, 2500# Standard ANSI/ASMEB16.5, B16.47, B16.36, B16.48.BS4504, BS3293, MSSSP44, AWWA, EN1092-1, DIN, JIS2220, GB T9112-9124, GB/T 20592-2009, SH406, JB/T, GB/T 20615-2009, GB/T 2506-2005, JB/T 4703-2000 Certificate ABS; TUV; TS; CCS Advantages Socket weld flange could replace threaded flange, to minimize the risky of leakage. No need to beveling before welding. Welding work outside of the pipe, will not penetr...
  • PriceList for Ferrule Flange - Plate Flange – Puyang

    PriceList for Ferrule Flange - Plate Flange – Puyang

    Size 1/2″-60″(DN12-DN1500) Rating 150#, 300#, 400#, 600#, 900#, 1500#, 2500# Standard ANSI/ASMEB16.5, B16.47, B16.36, B16.48.BS4504, BS3293, MSSSP44, AWWA, EN1092-1, DIN, JIS2220, GB T9112-9124, GB/T 20592-2009, SH406, JB/T, GB/T 20615-2009, GB/T 2506-2005, JB/T 4703-2000 Certificate ABS; TUV; TS; CCS Product Specification ASME B16.5 .B16.47. B16.36.BS.MSS.AWWA Type Weld Neck flange , Lap Joint Flange , Threaded flange, Socket Welding Flange,   Blind Flange,  Slip on F...
  • China Gold Supplier for Ductile Iron Flanged Fittings - Figure 8 Blank Flange – Puyang

    China Gold Supplier for Ductile Iron Flanged Fittings - Figure 8 Blank Flange – Puyang

    Size 1/2″-60″(DN12-DN1500) Rating 150#, 300#, 400#, 600#, 900#, 1500#, 2500# Standard ANSI/ASMEB16.5, B16.47, B16.36, B16.48.BS4504, BS3293, MSSSP44, AWWA, EN1092-1, DIN, JIS2220, GB T9112-9124, GB/T 20592-2009, SH406, JB/T, GB/T 20615-2009, GB/T 2506-2005, JB/T 4703-2000 Certificate ABS; TUV; TS; CCS Application Flanges are integral parts of many engineering and plumbing projects. Used in many, different fields, such as the transport (pipelines, ships) of petroleum, gas, water...