Wenzhou Wofer Valve Co., Ltd. presents our robust DIN Cast Steel Bellows Seal Gate Valve, engineered for complete zero stem leakage and reliable on/off isolation in critical and hazardous applications. This high-performance bellows sealed gate valve utilizes a dual-seal system (hermetic metal bellows + secondary packing) with welded bellows to the stem and bonnet, creating an impermeable barrier that prevents leaks of toxic, flammable, corrosive, or high-temperature media.
Designed and manufactured to DIN 3352 standards, with face-to-face dimensions per DIN 3202, flanged ends compliant with EN 1092-1 / DIN 2543-2545, and tested rigorously according to EN 12266 / ISO 5208 / DIN 3230, it ensures superior sealing, durability, and compliance with international environmental and safety requirements.
Key Specifications:
Nominal Pressure Ratings: PN16, PN25, PN40 (1.6–4.0 MPa)
Temperature Range: -29°C to 350°C (or higher with special materials)
Suitable Media: Steam, thermal oil, water, oil, gas, toxic fluids, corrosive chemicals, and hazardous media
Size Range: DN50 to DN400 (2" to 16")
Body Material: Cast steel (GS-C25 or equivalents like 1.7363)
Disc & Stem: ASTM A182 series (F6a, F304, F316, etc.) for enhanced strength and corrosion resistance
Bellows Material: Stainless steel (304, 316, 321, or Inconel/Hastelloy options for special applications)
Packing: Flexible graphite or PTFE for added secondary sealing
Operation: Manual handwheel (standard); gear, electric, or pneumatic actuation available
This DIN bellows seal gate valve is ideal for demanding industries including petrochemical processing, oil & gas, power generation, chemical plants, pharmaceuticals, heat transfer systems, and municipal utilities. Manufactured in Wenzhou, China—the renowned "hometown of pumps and valves"—Wofer Valve combines advanced welding technology, precise machining, and strict quality control to deliver ISO-compliant valves with long cycle life (up to 2000+ cycles for bellows) and exceptional reliability.
Choose Wenzhou Wofer Valve Co., Ltd. for competitive pricing, fast worldwide delivery, and customized solutions on DIN bellows seal gate valves. Contact us today for quotations, technical specifications, or OEM partnerships—ensure maximum safety and zero leakage with proven bellows technology!
Keywords: DIN bellows seal gate valve, cast steel bellows sealed gate valve, zero leakage gate valve, DIN 3352 bellows gate valve, PN16 PN40 bellows seal gate valve manufacturer, industrial bellows gate valve supplier Wenzhou China, toxic media bellows seal valve, thermal oil bellows gate valve.
