Views: 0 Author: J-VALVES Publish Time: 2026-09-26 Origin: Site
These original photos are captured inside J‑VALVES manufacturing workshop, displaying finished batches of 10‑inch Class 1500 A105 forged steel lift check valves ready for inspection and delivery.
As critical safety equipment for high‑pressure industrial pipelines, lift check valves automatically open and close driven by medium pressure differential. Its core function is to prevent fluid backflow, safeguarding pumps, compressors and downstream process equipment from reverse‑flow damage. It is widely deployed in oil‑gas production, refineries, power plants and heavy‑duty process piping systems.
The valve body is fully forged from ASTM A105 carbon steel, a globally‑recognized forging material for high‑temperature & high‑pressure service. A105 delivers outstanding mechanical strength and impact resistance, operating safely from ‑29℃ up to 425℃. For Class 1500 high‑pressure rating, forged construction eliminates casting defects like porosity, which makes it a preferred body material for global high‑pressure pipeline projects.
Our 10" Class1500 A105 lift check valves are engineered and produced following well‑known international specifications:
1. Design & Manufacturing: API 6D, ASME B16.34 pipeline valve standards
2. Flange End Dimension: ASME B16.5 high‑pressure RF raised‑face flanged connection
3. Pressure Test & Inspection: API 598, every unit undergoes 100% shell and seat pressure test
4. Stellite hard‑faced seating surface for anti‑erosion, high‑temperature wear‑resistance and extended service life
The lift‑type disc moves vertically along seat axis with precise guiding structure. Even under violent high‑pressure flow fluctuation, stable tight shut‑off can be guaranteed. Heavy‑duty bolted bonnet construction matches Class 1500 severe service, resisting leakage risk caused by pressure surges and thermal cycling.
1. Oil & gas transmission trunk lines and gathering station high‑pressure process loops
2. Petrochemical & refinery high‑pressure process units, hydro‑processing circuits
3. Thermal power plant high‑pressure steam & feed‑water piping
4. Anti‑backflow protection for high‑pressure pump and compressor outlets
5. Coal‑chemical and heavy‑energy industrial projects
Suitable media: crude oil, natural gas, steam, process oil, water and other common industrial fluids.
The picture shows finished‑goods area after machining, hard‑facing, non‑destructive testing and hydro‑pneumatic tests. Founded in 2009, J‑VALVES specializes in full‑range heavy‑duty industrial valves including forged check valves, ball valves, gate valves and globe valves. We offer third‑party witness test, material traceability documents and relevant certifications to satisfy overseas EPC and domestic large‑scale chemical project procurement requirements.
Essential parameters: NPS 10 size, Class 1500 pressure rating, A105 forged steel body, RF flanged ends. Please also confirm operating temperature, fluid corrosiveness, installation orientation (horizontal or optional spring‑assisted vertical installation), NDT requirement and API 6D certification before ordering.
Contact J‑VALVES team if you need quotation, complete technical datasheet or more factory reference photos for 10" Class1500 A105 lift check valve, we provide tailored industrial valve solutions for your project.