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Hebei Zuoguan Pipeline Equipment Co., Ltd. is an export-focused one-stop supplier specializing in pipeline accessories and industrial piping solutions. We own independent brands and serve clients worldwide in oil & gas, petrochemical, power, water supply and industrial construction sectors.
Based in Cangzhou, Hebei — China’s key pipeline equipment manufacturing hub, we cooperate with qualified certified factories with ISO9001, CE, API certifications. We supply flanges, pipe fittings, valves, steel pipes and related pipeline parts with cost-effective prices, stable quality and fast delivery.
We conduct full-process quality control and provide complete test reports and export documents. With rich export experience, we have built long-term partnerships with clients from over 60 countries, offering reliable products and professional all-round trade services.
This Alloy Steel Cap to EN standard is made of high-grade alloy steel with excellent high-temperature stability and reliable mechanical strength. It features uniform wall thickness and accurate dimensions, which ensure reliable sealing at the pipe end, and it has good weldability for convenient butt-weld connection. As an essential pipe fitting for sealing pipeline terminals, it is widely used in petroleum, chemical, power, metallurgy and other industrial fields for high-temperature and high-pressure pipeline systems
Specifications
| Material | 12Cr1MoVG、15CrMo、ASTM A234、 etc |
| Size | 1/2"~ 48"（DN15 ~ DN1200） |
| Thickness | SCH10、SCH20、SCH40、SCH80、SCH160、XXS（Double Extra Strong） |
| Pressure | Class150、Class300、Class600、Class900、Class1500、Class2500 |
We support standard, special-shaped & drawing customization. Send us your requirements, we can provide professional drawings accordingly.
our product overview：
•Flanges: Weld Neck (WN), Slip On (SO), Plate (PL), Blind (BL), Socket Weld (SW), Threaded, Lap Joint, Ring Type Joint (RTJ) Flange
•Pipe Fittings: 90°/45° Elbow (LR/SR), Equal/Reducing Tee, Concentric/Eccentric Reducer, Cap, Stub End
Materials & Standards：
•Materials: Carbon Steel (A105, A234 WPB), Stainless Steel (304, 316L), Alloy Steel, Duplex & Super Duplex (F51, F53)
•Standards: ANSI/ASME B16.5, ASME B16.9, EN 1092-1, JIS B2220, DIN 2501, GOST 12820, GB/T 9119
•Pressure & Wall Thickness: Class 150-2500, PN20-PN420, SCH40/SCH80/SCH120/SCH160/XXS
Our Advantages：
•✅ Factory direct price, no middleman, competitive quotation
•✅ Strict quality control, full NDT test (UT/RT/MT/PT) and Mill Test Certificate (MTC) available
•✅ Fast delivery: 15-25 working days after deposit
•✅ Customized size, material and standard according to customer requirements
•✅ Rich export experience, serving 60+ countries worldwide
We adhere to the principle of "quality first, customer foremost" and look forward to establishing long-term and stable cooperative relationships with customers around the world. Contact us now for the best quotation!
If you have any inquiry about pipe flanges or pipe fittings, please contact us directly — we will reply within 24 hours with our best offer!
📱 WhatsApp/WeChat: +8615832782018
📩 Email: sales@flangepipefittings.com
Send Inquiry to This Supplier
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