Metal Elastic Hand Sealed Butterfly Valve
The Metal Elastic Hard Sealed Butterfly Valve combines triple eccentric design with elastic metal sealing technology for superior performance in critical applications. Key features:
Triple Eccentric DesignThree-dimensional offset eliminates friction during operation
Elastic Metal SealStainless steel seal with elastic compensation for zero leakage
Extreme Temperature-40°C to 600°C operation with stainless steel construction
Available Series:
- D1373H: Wafer type, elastic seal
- D1343H: Flanged type, elastic seal
- D6373H: Wafer type, multi-layer seal
- D6343H: Flanged type, multi-layer seal
Technical Specifications
Size RangeDN50 – DN1200 (2″ – 48″)
Pressure RatingPN0.6 to PN4.0 (6.4MPa)
Stainless Steel: -40°C~600°C
Seat MaterialsStainless Steel • Multi-layer • Polyester Lactone
Leakage ClassZero (Gas Test Certified)
StandardsGB/T 12238 • GB/T 13927 • JB/T 9092
Functions
Zero-Friction OperationTriple eccentric design eliminates sliding friction between disc and seat
Bubble-Tight SealingElastic metal seal maintains contact under pressure fluctuations
Low Torque Operation60% less operating torque than conventional butterfly valves
High Temperature PerformanceSpecial alloy seats maintain integrity at 600°C
Applicated Environment
Power Generation
- Boiler feedwater systems
- Cooling water circuits
- Flue gas desulfurization
- Temperature: Up to 425°C
Chemical Processing
- Acid transfer lines
- Solvent distribution
- Reactor feed systems
- pH Range: 1-14
Water Treatment
- Municipal water supply
- Wastewater treatment
- Seawater desalination
- Size: Up to DN1200