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Zhejiang Zhongguan Valve Manufacture Co., Ltd. operates advanced production bases in Tianjin and Wenzhou, bringing over 19 years of specialized fluid control engineering experience. Rooted in Oubei, Zhejiang—widely recognized as the hometown of pumps and valves—the company integrates robust northern cast iron supply chains and southern cast steel manufacturing capabilities.
Manufactured strictly in compliance with DIN standards to guarantee dimensional accuracy and operational safety in critical industrial loops.
Equipped with complete internal production lines, pressure-testing machines, precision seat installation tools, and shaft sleeve assembly stations.
Supplying engineering project contractors, stockists, and industrial plants across Southeast Asia (including Vietnam, Malaysia, and Singapore) and worldwide.
When deploying a High Temperature Bellows Sealed Globe Valve, material composition directly determines structural survival under extreme thermal expansion and mechanical stress. Zhongguan utilizes certified metallurgy to match diverse chemical and temperature demands.
Available in GG25 (EN-GJL-250) and GGG40 for standard thermal duties, cast steel 1.0619+N (GS-C25) for high-pressure industrial lines, and austenitic stainless steels 1.4308 (CF8) and 1.4408 (CF8M) for corrosive environments.
The core stem seal consists of a multi-ply metallic bellows fabricated from SS304, SS316, SS316L, SS310S, or Hastelloy C, eliminating packing friction and preventing fugitive emissions.
Discs feature precision-machined conical profiles with optional Stellite hardfacing on stainless steel seats to resist high-velocity fluid erosion and cavitation.
The following operational parameter matrix outlines standard technical data for every High Temperature Bellows Sealed Globe Valve produced for project procurement.
Industrial plant operators select the High Temperature Bellows Sealed Globe Valve for installations where media containment failure poses severe safety and environmental liabilities.
Prevents volatile organic fluid leakage under continuous thermal cycling and high-viscosity flow conditions.
Withstands extreme thermal stress up to 600°C in power generation plants, district heating grids, and industrial boiler systems.
Isolates toxic or hazardous process gases securely, fulfilling strict environmental regulations against fugitive emissions.
The primary metallic bellows seal is backed by a secondary PTFE or graphite packing ring, ensuring instant backup containment in the unlikely event of bellows wear.
An integrated grease fitting enables direct lubrication of the stem, stem nut, and sleeve assembly, lowering operating torque and preventing galling.
Non-slip rigid handwheels reduce operator fatigue while delivering smooth, precise linear flow regulation.
Thermal limits dictate valve selection in heavy industrial processing and power generation infrastructure.
No MOQ is enforced; single-piece production is fully supported for emergency maintenance and pilot installations.
Standard DIN dimensional drawings and P&ID schematics are provided upon request. Allow adequate project lead time for non-standard or large-diameter (DN400) configurations.
Standard inquiries receive formal quotations within 24 hours. Special alloy requests require up to 48 hours.
Export units are packed in sealed wooden cases with moisture barriers. Units above DN200 are secured on pallets with stretch film to prevent transit corrosion.
Includes a standard one-year warranty backed by free replacement policies for verified manufacturing defects.
Related products in the same DIN Standard Industrial Valve family include the DIN Standard Bellows Sealed Globe Valve, the straight-pattern DIN Standard Globe Valve, the DIN Standard Check Valve, and the DIN Standard Gate Valve.
Address
No. 838, Oubei Avenue, Yongjia County, Wenzhou City, Zhejiang Province, China
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