Bellows Seal Gate Valve

Bellows-Sealed Gate Valves are shut-off valves designed for reliable isolation in pipeline systems and to prevent stem leakage. It is intended for fully open or fully closed operation, not for throttling. With its durable sealing structure, it helps improve safety, reduce maintenance, and meet environmental requirements.
Specific Applications
Bellows-Sealed Gate Valves are commonly used in oil transportation, natural gas distribution, refinery processing, petrochemical and chemical plants, fertilizer and pharmaceutical facilities, thermal power stations, and industrial utility systems.
Key Features
Zero Stem Leakage – Metal bellows welded to stem and connection plate creates a fully enclosed barrier. This Bellows Seal Gate Valve eliminates packing leaks – ideal for chlorine gas, toxic, flammable, or high‑purity media.
Stainless Steel & High‑Temp Ready – Body in stainless steel, carbon steel, or alloy. Handles high temperatures and corrosive chemicals. As a high-temperature Bellows Seal Gate Valve, it is designed for refineries, petrochemical, fertilizer, pharmaceutical, and thermal power stations.
Chemical & Chlorine Gas Special Design – The chemical bellows-sealed gate valve and chlorine gas special corrugated pipe gate valve feature dual sealing (bellows + secondary packing) and a heat‑treated / nitrided stem for maximum reliability in aggressive service.
Zero Leakage Performance – Meets stringent environmental and safety standards. Reduces maintenance, prevents fugitive emissions. For fully open or fully closed operation only – no throttling.
OEM & ODM Customization – Body marking, logo, nameplate, packaging, special dimensions, and connection standards. Our team assists with valve selection based on pressure, temperature, media, and project specifications.
Quality Certification
We hold ISO 9001, ISO 14001, and ISO 45001 certifications, plus a special equipment production license (TS). Our products are made to API, ANSI, JIS, ISO, BS, JB, and GB standards. This covers material checks, non‑destructive testing, precise measurements, and valve strength/sealing performance.
Custom Manufacturing Services
You send us a drawing or sample, and we review the requirements. Then we confirm the drawing and give you a quote — faster if you provide a 3D model. After order confirmation, we schedule batch production.