SISTAG knife gate valves for difficult environments and corrosive media.

• Pressure: PN10-PN100
• Valves leakge class is A, zero leakage for bi-directional flow
• Unique WEY sealing system allows bubble-tight shut-off due to the joint action of various factors during the closing stage
• Manual versions available and with all types of actuators

Special solutions for high fibre concentration mass, dry abrasive medias and thick slurries.

Wey valve types:

For more standard solutions and lower pressures 1-10bar:

VN:

• Cast iron, stainless steel
• Body semi-lug type, for pipe end service
• Size: DN50-1400
• Pressure: PN10-PN6
• Broad sealing selection
• Available with quick action lever to lower pressure solutions

MF/MG:

• MF cast iron, MG ductile Iron, stainless steel
• Monoflange, for pipe end service
• MF sizes: DN50 1600 mm, MG: DN100-600
• Pressure MF: PN10, MG: PN16
• Broad sealing selection
• Options for dry, abrasive medias

MH:

• MH ductile iron, stainless steel
• Monoflange / Lug, for pipe end service
• Double transverse seal with scraper
• Size: DN 80 400 mm
• Pressure PN25
• Gate guided for full length of stroke, with 60° arc geometry which prevents jamming, refer to illustration
• Flush ports in corners
• Broad sealing selection
• Options for special solutions

Also available for ATEX locations and special materials for example duplex, titanium etc. if requested.

Locations:

• Bio gas
• Cement Industry
• Chemical Industry
• Coal Fired Power Station
• Waste Handling
• Mining Industry
• Petrochemical Industry
• Off-shore
• Slurry
• Power
• Pulp & Paper
• Sand & Gravel
• Steel
• Waste Utility

Special versions:

HD: DN50-400 PN100, mining, chemical, oil industry
HSI: DN100-400, PN10-16, explosion protection

Sistag Wey knife gate valves