Haihao Group Supplies Pipeline Products Including WN Flanges, Bolts, and Spiral Wound Gaskets
Haihao Group has successfully completed the shipment of a full set of pipeline products for a valued customer. The delivery included weld neck flanges, bolt sets, and spiral wound gaskets, ensuring a complete piping connection solution that meets international standards.
GOST 33259 WN flange DN400 PN40 ready for shipment
Shipment Details
The order consisted of:
- Weld Neck Flange (WN Flange, Raised Face): DN400 PN40, 20# steel, manufactured to GOST 33259
- Bolt Set: М36 × 220, including bolt + 2 nuts + 2 flat washers, material ST35/ST25
- Spiral Wound Gasket: DN400 PN40, with 304 stainless steel inner ring + graphite filler, designed for use with raised face flanges
This combination of products provides customers with reliable sealing and connection performance for high-pressure and high-temperature piping systems.
Spiral wound gasket with 304 inner ring and graphite filler
Product Advantages
- GOST 33259 WN Flanges: Provide strong strength, precise alignment, and excellent pressure resistance, suitable for demanding pipeline applications.
- High-Strength Bolts and Nuts: Ensure secure fastening and long-term durability under dynamic conditions.
- Spiral Wound Gaskets: Designed for raised face flanges, offering superior sealing capability against thermal cycling, vibration, and pressure fluctuations.
Applications
These pipeline components are widely used in industries such as:
- Oil and gas transmission pipelines
- Petrochemical plants
- Power generation facilities
- Water supply and treatment projects
With the integration of flanges, bolts, and gaskets, Haihao Group delivers a one-stop solution for reliable and efficient pipeline assembly.
Bolt set with nuts and flat washers for pipeline flanges
Why Choose Haihao Group
With over 40 years of manufacturing experience, Haihao Group is a trusted supplier of flanges, fittings, pipes, and gaskets. Our products are produced under strict quality control and comply with international standards such as ASME, EN, DIN, and GOST. We aim to provide customers with durable pipeline solutions that meet diverse project requirements.