ONLINE INQUIRY

Please be sure to fillin the information accurately, and keep the communication unblocked, we will get in touch with you as soon as possible

+
  • 3(1780649113935).webp
  • 8(1780649113964).webp
  • 1(1780649113972).webp
  • 2(1780649113954).webp
  • 6(1780649114045).webp

2-150# Full-bore hard-sealed swing check valve for long-distance pipelines

Classification:

Swing type hard seal check valve

keywords: 2-150# Full-bore hard-sealed swing check valve for long-distance pipelines

Details

The swing-type hard-sealed check valve features a rocker‑arm swing‑open design, with the disc pivoting around a pin to open and close. Its sealing surfaces are overlay‑welded with hard alloy, providing excellent resistance to high temperatures, high pressures, and erosive media. When the fluid flows in the forward direction, the disc lifts smoothly to allow unobstructed passage; under reverse flow, the disc closes tightly under the combined action of its own weight and back pressure, ensuring a secure metal‑to‑metal seal. The valve body is designed with a full‑bore configuration, minimizing flow resistance and delivering high throughput, making it suitable for service conditions such as high‑temperature steam, oils, and hot flue gases. It is widely used in power plants, petrochemical facilities, and metallurgical applications where high‑temperature, high‑pressure piping demands reliable protection against backflow, and can be installed on both horizontal and vertical pipelines.

For more product parameters, please click to download the PDF file.

Video display

Company Introduction

R&D Department

QA Department

Logistics Department

Valve Division

Sales Department

Main products

pouring processes

Lost-foam Shell Casting Processes

Technological Process

Process Design

Mold Making

Shell Making

Foam Lost

Calcination

Flask Filling

Smelting

Pouring

Sand Removal

Riser Cutting

Surface Finishing

Shot Blasting

Heat Treatment

Inspection

MT

Packing & Delivery

Production Equipment

In-House Inspections

Chemical laboratory
Cryogenic impacting tester
Hardness testing
Physical Analysis
Projective test
Spectral Analysis
Performance Test
MT Inspection
PT Inspection
UT Inspection

Qualification certificate

1
6
5
Z5
4

Why Choose Us

Quality to create excellence, innovation with people

Haisheng

Technical consulting

Full-time technician to support from technical solution to installation and use

Haisheng

Product Type

Specializing in the manufacturing and sales of various valve bodies and precision castings

Haisheng

Quality Certification

The company took the lead in passing the 1509001 2015 International Mass Star System Certification and CE Certification.

FAQ

undefined

undefined

RELATED PRODUCTS

LEAVE US A MESSAGE

If you have any need, please feel free to contact us