Bellows seal valves
Bellows seal valves
Bellows seal valves play an important role in the safe handling of liquids and gases in industrial systems, preventing leaks and system damage.
Two outstanding types from Crane CPE are the WTA protected bellows valve type 11.35 and the WTA manually operated chlorine valve type EC11.35.
These valves provide reliable protection in various industrial applications, ensuring smooth system operation and long service life.
WTA® protected bellows valves type 11.35
The WTA® protected bellows valves, type 11.35, are designed to prevent wear and water hammer.
Features:
- Sealed bellows globe valves for various applications containing flammable, explosive, volatile, toxic, or aggressive substances, ensuring the highest level of emission protection
- Complete safety sealing system with multi-wall bellows, gland packing, metal back seat, and position indicator
- Two-piece rising stem design separates the upper and lower stem parts, preventing bellows torsion
WTA® manually operated chlorine valves, type EC11.35
The WTA® bellows-sealed globe valve complies with Chlorine Institute Pamphlet 6 and Euro Chlor specifications for liquid chlorine and dry chlorine gas applications.
Features:
- Bellows torque protection device with integrated position indicator for open and closed positions
- Protected multi-wall bellows made of 2.4819 / Hastelloy C276, designed for 10,000 cycles, installed outside the main flow area
- Bridge and column design separates the yoke from the bonnet; columns fixed with bolts and nuts
- Tongue-and-groove bonnet flange; bolts made of grade 1.7225 / A 320 L7M with grade 1.7218 / A 194 Grade 7M nuts at both ends; PTFE-coated bonnet gasket
- Replaceable conical disc; sealing surface hardened with Stellite® 6; body seat hardened with Stellite® 21
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