CE / ANSI
American standards compliance
1 / 7
HDPE Fittings
HDPE Flanges
HDPE flange solutions: flange ends, flange rings, ductile iron and steel backing rings, PP plastic-wrapped flanges. Compatible with DIN, ANSI and GB/T pressure classes.
- Ductile Iron Flange
- Flange End
- Flange Fittings (2)
- Flange Fittings
- Flange Ring
- PP Plastic-wrapped Flange
- Steel Backing Ring
- Raw Materials
- PE100 / PE4710 from Borealis, SABIC
- Diameter Range
- DN40 – DN800 mm (1 1/2" – 32", customised on request)
- Pressure Rating
- PN6 / PN8 / PN10 / PN16 / PN20 / PN25; ANSI 150 / 300; BS10 Tables D / E / F
- Standards
- EN 1092-1 / ISO 7005-1 / ANSI B16.5 / BS 10 / DIN 2501 / DIN 2576 / GB/T 9119
- Certificates
- WRAS, CE, ISO 9001 / 14001 / 45001
- Applications
- Connection to steel valves, pumps, ductile-iron hydrants; demountable transitions
Product Description
HDPE Flanges are the bolted transition between HDPE pipelines and pumps, valves, vessels and metallic piping. The system uses a PE100 stub-end welded to the pipe and a separate ductile-iron, steel or stainless backing ring that takes the bolt load.
Advantages and Characteristics
1. PE100 wetted face: matches pipe in WRAS / NSF / CE potable certification.
2. Backing-ring metallurgy is decoupled from process — choose galvanised, SS304, SS316 or PP-coated steel for the corrosion environment.
3. Compatible with EN 1092-1, ISO 7005-1, ANSI B16.5 and BS 10 drilling tables.
4. Easy gasket replacement and re-bolting — no need to recut or fuse the pipe.
5. Pressure ratings PN6 / 8 / 10 / 16 / 20 / 25 and ANSI 150 / 300.
Typical Applications
1. Pump and valve connections in water treatment and pump stations.
2. Spool-piece transitions to existing iron, steel or stainless mains.
3. Tank, manifold and instrument-take-off connections.
4. Hydrant and air-valve outlets on buried mains.
5. Removable spool sections for inspection and maintenance.
International Certifications & Compliance
Our HDPE, PVC and PPR products are independently tested and certified to international standards for drinking water safety, quality management and product compliance.
CE / ISO 9001
ISO 9001 quality management system
WRAS
UK drinking water approval
NSF 61
NSF/ANSI 61 drinking water safety (USA)
Global Projects Powered by Primepoly
From municipal water mains and mining slurry lines to fire protection risers and agricultural drip irrigation — Primepoly HDPE, PVC and PPR piping systems keep fluids flowing safely across more than 40 countries.
Municipal Potable Water Trunk Main
DN1200 HDPE PE100 · 18 km
High-Rise Fire Protection Riser
DN150 HDPE · 42 floors
Open-Pit Mine Dewatering Line
DN800 SRTP · 6 km
Urban Gas Distribution Network
DN110 / DN225 HDPE SDR11
Drip Irrigation Backbone
DN63 - DN315 HDPE · 1,200 ha
Industrial Park Chilled Water
DN400 PE100 · PN10
Primepoly Large Diameter HDPE Pipe Flange Stub Ends | Machined Factory Show
HDPE Flanges — used in these projects
HDPE Flanges — recommended applications
Frequently Asked Questions
What is the minimum order quantity (MOQ) for HDPE / PVC pipe?
Standard MOQ varies by product — generally 1 ton for HDPE pipe, 500 kg for PVC pipe, and one full container for export orders. Custom MOQ is available for sample / pilot projects — contact our sales team for confirmation.
What is the typical lead time?
For stocked sizes, 7–10 days from order confirmation; for custom OD / SDR / colour, 25–35 days. Production capacity exceeds 2,000 t/month — large project orders are scheduled in batches.
Which certifications does Primepoly hold?
ISO 9001, ISO 4427, AS/NZS 4130, ASTM F714, AWWA C906, WRAS and NSF 61. Documentation accompanies every shipment, and third-party inspection (SGS / BV) is welcome at the buyer's request.
Do you offer OEM and private-label manufacturing?
Yes — we manufacture pipes and fittings to customer-specified OD, SDR, length, colour, marking and packaging. MOQ for OEM orders typically starts at 5 tons or one full container.
How are pipes packaged for export shipping?
Pipes are bundled with PE film / steel strap and stowed by length: short pipes (≤6 m) ship in 20'/40' containers; long pipes (>12 m) ship by break-bulk vessel or flat rack. Coil rolls are shrink-wrapped and palletised. Free OBL with shipping documents.
Contact Us
Our friendly customer service team is here to help with quotations, technical consulting and custom manufacturing enquiries. We reply within 24 hours.
- Tel+852 9562 2873
- Emailsales@primepolypipes.com
- AddressRoom 1313, 13/F, Meisheng Center (Office Tower), No. 33 Jinshui East Road, Zhengzhou Area (Zhengdong), Henan Pilot Free Trade Zone, Zhengzhou, Henan 450000, China
Leave a Message
Our friendly customer service team is here to help with quotations, technical consulting and custom manufacturing enquiries. We reply within 24 hours.