Qingdao HQ Import & Export Co., Ltd.
Qingdao HQ Import & Export Co., Ltd, the export office of HQ Pipeline, which is a professional manufacturer & exporter of all kinds of pipe fittings, flanges and valves in China: Forged Steel Pipe Fittings, Flanges, Butt Weld Pipe Fittings, Nipples and Coupling, UL/FM Ductile Iron Grooved Pipe Fittings, Pipe hangers and Clamps, Gate Valve, Butterfly Valve, Check Valve, Strainers, Ball Valve...And casting and forging OEM/ODM service, which are widely used in the field of petroleum, natural gas, ship building, metallurgy, electric power, chemical industries, fire protection etc.
HQ Pipeline plants are well equipped with advanced production and inspection equipments: 600T Intermediate frequency push-type forming machine, 3500T Hydraulic-pressure machine, 1/5/8tons forging hammer, air forging hammer, high precision machine tools, electrical heating furnaces, heat treatment furnaces, PMI detection equipment, tensile machines, impact testers, hardness testers, metallographic analyzers, digital UT flaw detectors, etc. And also equipped with skilled workers, several engineers.
Through continuous input of R&D, HQ Pipeline strives to technical innovation, and develops new products constantly, provide OEM/ODM service for non-standard products according to customer′s drawings or samples.
With maintaining the Total Quality Management (TQM) by Quality Control Section, all products are subject to pass strict inspection at each stage of the production process, from starting material handling to finished product shipping. For years, HQ Pipeline plants have been successively qualified to produce pressure pipeline unit, honored with " Nationwide Quality Credit AAA Brand Enterprise" And " Contract abiding company", certified with ISO9001-2008.
Years of professional pipeline production technics and rich experience, strictly quality control and assurance, years of export experience, reputed pre-sale and after-sale service, continuous development and improvement, we believe that HQ will be your premier partner. We welcome your visit, and look forward to committed to meet your any need for the pipeline products.
Product List
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GOST 12820/12821-80, GOST 33259-15, 31803 32750 En1092 Type01, DIN2633 C22.8, Rst37.2 Class150/300/600/900, P250gh, P245gh Forged Wn/Weld/Welding Neck Flanges
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JIS 10K, JIS Ss400 B2220 Sf440 5K/10K/16K/20K/30K, 150lbs/300lbs/600lbs/900lbs/1500lbs/2500lbs, Forged Wn/Weld/Welding Neck Flanges
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DIN2501, 2502, 2503, 2527, 2543, 2573, 2576 DIN2673, DIN2635-DIN2631, 150lbs/300lbs/600lbs/900lbs/1500lbs/2500lbs, Forged Wn/Weld/Welding Neck Flanges
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BS4504 Sani1123 1000/3, 1600/3, 2500/3, T/D, T/E, T/F As2129 Table D / Table H / Table E,SABS 1123,150#/300#/600#/900#/2500# Forged Wn/Weld/Welding Neck Flanges
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En1092-1/2/3 Type1/2/5/2/13 BS4504 Sani1123 1000/3, 1600/3, 2500/3, T/D, T/E, T/F Pn10/Pn16/Pn25/Pn40/Pn64 Forged Wn/Weld/Welding Neck Flanges
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ANSI B16.5 16.47,ASME B16.9 16.48 Stainless Steel ASTM A351 CF8c 347,A403,Super Duplex Alloy Steel/Metal/Aluminum,Titanium Forged Wn/Weld/Welding Neck Flanges
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ASME/ANSI/DIN/GOST/BS/En/as/JIS/API 6A Carbon Steel A105, A105n, A106, Q235, A350 Lf2, A216 Wcb S235jr S275jr Forged Wn/Weld/Welding Neck Flanges
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Stainless Steel SUS 201 304 316, ASTM A182 F321 F304/316L, 904L, F11 F12, F51, A694 F52/F60/F65/F70 F304h F316h F317 Forged Wn/Weld/Welding Neck Flanges
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En1092-1/2/3 Type1/2/5/2/13, BS4504 Sani1123 1000/3, 1600/3, 2500/3, T/D, T/E, T/F Pn10/Pn16/Pn25/Pn40/Pn64, Forged Sw/Socket Weld/Threaded/Thread/Th Flanges
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ANSI B16.5 16.47,ASME B16.9 16.48 Stainless Steel ASTM A351 CF8c 347 ASTM A403 Super Duplex Alloy/Metal/Aluminum,Titanium,Forged Sw/Socket Weld/Thread/Th Flange
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ASME/ANSI/DIN/GOST/BS/En/as/JIS/API 6A, Carbon Steel A105, A105n, A106, Q235, A350 Lf2, A216 Wcb S235jr S275jr Forged Sw/Socket Weld/Threaded/Thread/Th Flanges
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Stainless Steel SUS 201 304 316,ASTM A182 F321 F304/316L,904L,F11 F12,F51,A694 F52/F60/F65/F70 F304h F316h F317 Forged Sw/Socket Weld/Threaded/Thread/Th Flanges
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JIS 10K, JIS Ss400 B2220 Sf440 5K/10K/16K/20K/30K GOST 12820-80/12821-80, GOST 33259-15, 31803 32750, Forged Flat Face FF/Raise Face RF Rtj Plate Flanges
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BS4504 Sani1123 1000,1600,2500/3,T/D,T/E,T/F As2129 Table D/Table H/ Table E,SABS 1123,150/300/600/900/2500#Forged Flat Face FF/Raise Face RF Rtj Plate Flanges
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DIN2501, 2502, 2503, 2527, 2543, 2573, 2576 DIN2673, DIN2635-DIN2631, Pn10/Pn16/Pn25/Pn40/Pn64, Forged Flat Face FF/Raise Face RF Rtj Plate Flanges
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En1092 Type01, DIN2633 C22.8, Rst37.2 or C22.8 150lbs/300lbs/600lbs/900lbs/1500lbs/2500lbs, Forged Flat Face FF/Raise Face RF Rtj Plate Flanges
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Stainless Steel ASTM A351 CF8c 347, ASTM A403, Super Duplex Alloy Steel/Metal/Aluminum, Titanium, Forged Flat Face FF/Raise Face RF Rtj Plate Flanges
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ANSI B16.5 B16.47,ASME B16.9, B16.48 En1092-1/2/3 Type1/2/5/2/13 Class150/300/600/900,P250gh, C22.8, P245gh,Forged Flat Face FF/Raise Face RF Rtj Plate Flanges
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ASME/ANSI/DIN/GOST/BS/En/as/JIS/API 6A,Carbon Steel A105,A105n,A106,Q235,A350 Lf2,A216 Wcb S235jr S275jr,Forged Flat Face FF/Raise Face RF Rtj Plate Flanges
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Stainless Steel SUS 201 304 316, ASTM A182 F321 F304/316L, 904L, F11 F12, F51, A694 F52/F60/F65/F70 F317 Forged Flat Face FF/Raise Face RF Rtj Plate Flanges
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En1092 Type01, DIN2633 C22.8, Rst37.2 or C22.8 Class150/300/600/900, P250gh, P245gh, Forged Sw/Socket Weld/Threaded/Thread/Th Flanges
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GOST 12820-80/12821-80, GOST 33259-15, 31803 32750, 150lbs/300lbs/600lbs/900lbs/1500lbs/2500lbs, Forged Sw/Socket Weld/Threaded/Thread/Th Flanges
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JIS 10K, JIS Ss400 B2220 Sf440 5K/10K/16K/20K/30K, , 150#/300#/600#/900#/2500# Forged Sw/Socket Weld/Threaded/Thread/Th Flanges
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As2129 Table D / Table H / Table E,SABS 1123, DIN2501,2502,2503,2527,2543,2573,2576 DIN2673,DIN2635-DIN2631 Forged Sw/Socket Weld/Threaded/Thread/Th Flanges
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Forging Valve Flanges Inox Flange Stainless Steel Forged Backing Ring Flat Flange Pn10/Pn16
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Stainless Steel Carbon Steel Manufacturer Price Forged Mild Steel Flange, Sorf Hub Flange, Galvanized Flange
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Factory Price Hot Selling Professional Wholesale Forged Lap Joint/Slip on/Welding Neck/Socket Weld/Threaded/Plate/Flat/Blind Flange for Oil Gas Pipeline
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Manufacturer Price, Precision CNC Machining, DN15-DN3000 Forged Lap Joint/Slip on/Welding/Weld Neck/Socket Weld/Threaded/Plate/Flat/Blind Flange
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Hot DIP Galvanized Machining Parts Sch40 Sch80 Tube Pipe Ring Forged Lap Joint/Slip on/Welding Neck/Socket Weld/Threaded/Plate/Flat/Blind Flange
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High-Strength 8 Hole Customized Drawing Forged Lap Joint/Slip on/Welding Neck/Socket Weld/Threaded/Plate/Flat/Blind Pipe Flanges
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High Precision Steel, Investment Casting Flange Forged So/Wn/Sw/Th/FF/RF/Bl/Pl Flanges for Oil Gas Pipeline,
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Hot Dipped Galvanized Surface, DN150 6 Inch, Flange Connector for Water & Gas Forged So/Wn/Sw/Th/FF/RF/Bl/Pl Flanges
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Hot DIP Galvanized Machining Parts Sch40 Sch80 Tube Pipe Ring Flanges Forged So/Wn/Sw/Th/FF/RF/Bl/Pl Flanges
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Factory Price Hot Selling Professional Wholesale Flange Forged So/Wn/Sw/Th/FF/RF/Bl/Pl Flanges for Oil Gas Pipeline,
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Professional Wholesale OEM Standard/Special Stamping Flange Forged Lap Joint/Slip on/Weld/Welding Neck/Socket Weld/Threaded/Plate/Flat/Blind Flange
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High Precision Steel, Investment Casting&Forged Lap Joint/Slip on/Welding Neck/Socket Weld/Threaded/Plate/Flat/Blind Flange Flange for Oil Gas Pipeline
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Agriculture Machine/Pump/Flange, DN25 DN40 DN80 DN100 Forged Lap Joint/Slip on/Weld/Welding Neck/Socket Weld/Threaded/Plate/Flat/Blind Flange
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Hot Dipped Galvanized Surface DN150 6 Inch, Forged Lap Joint/Slip on/Weld/Welding Neck/Socket Weld/Threaded/Plate/Flat/Blind Flange Connector for Water & Gas,
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150/300/600/900/1500/2500lbs, Class150/300/600/900, P250gh, C22.8, P245gh, Pn10/Pn16/Pn25/Pn40/Pn64, Wn/Weld/Welding Neck Flanges
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150lbs/300lbs/600lbs/900lbs/1500lbs/2500lbs, Class150/300/600/900, P250gh, C22.8, P245gh, Sw/Socket Weld/Threaded/Thread/Th Flanges
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150#/300#/600#/900#/2500# 150/300/600/900/1500/2500lbs, Class150/300/600/900, P250gh, C22.8, P245gh, Pn10/Pn16/Pn25/Pn40/Pn64 Blind/Bl Flanges
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ASME/ANSI/DIN/GOST/BS/En/as/JIS/API 6A, 150#/300#/600#/900#/2500# Wn/Weld/Welding Neck Flanges
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150#/300#/600#/900#/2500# 150lbs/300lbs/600lbs/900lbs/1500lbs/2500lbs, Lap Joint / So Slip on Flanges (1/2" - 24")
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Stainless Steel Camlock Quick Coupling Type C Hose Shank Coupler
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Carbon Steel Stainless Steel Flanges for Chemical Industry
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Forged Carbon Steel Stainless Steel Flanges
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Forged Weld Neck Carbon Steel Stainless Steel Pipe Steel Flange
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Carbon Steel Stainless Steel Flange Are Used in Oil Pipeline
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Agriculture Machine/Pump/Flange, DN25 DN40 DN80 DN100 Forged So/Wn/Sw/Th/FF/RF/Bl/Pl Flanges
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High-Strength 8 Hole Customized Drawing Flange Forged So/Wn/Sw/Th/FF/RF/Bl/Pl Flanges
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Manufacturer Price, Precision CNC Machining, DN15-DN3000 Forged So/Wn/Sw/Th/FF/RF/Bl/Pl Flanges
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Professional Wholesale OEM Standard/Special Stamping Flange Forged So/Wn/Sw/Th/FF/RF/Bl/Pl Flange
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Grade4.8/8.8/10.9/12.9 DIN931/DIN933 Stainless/Carbon Steel Black/Zinc Full/Half Thread Hex Head Nut and Bolt
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ANSI/DIN/En1092-1 Forged Carbon/Stainless Steel Pn10/16 Welding Neck/Blind/Slip on/Lap Joint/Flat Plate/Socket RF/FF Pipe Flanges