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Double Seat Valves - Mrt Process

Double Seat Valves

Double Seat Valves

They are used for safe separation against the mixing of inappropriate products in automatic process installations. Closed valves prevent mixing through pressureless discharge by two independent valve discs. In case of damaged sealing, the process medium leaks through the pressureless valve. The leakage area can be cleaned by lifting the upper valve disc or lowering the lower valve disc. KIESELMANN double seat valves have low investment, maintenance, and repair costs, and are the basis of an economical process.

  •  ► Pressure-resistant
  •  ► Tight sealing
  •  ► Safe product separation
  •  ► Optimal cleaning functions
  •  ► Long sealing lifespan
  •  ► Service-friendly

Technical Data

Sizes DN 25-150, 1"-4"
Materials  
With product contact 1.4404 / AISI 316L
No product contact 1.4301 / AISI 304
Seals  
EPDM (SIP 140°C, 30 min.) FDA conform
HNBR (SIP 110°C, 30 min.) FDA conform
k-flex (SIP 150°C) FDS conform
Surfaces with product
contact		 Ra < 0,8 μm e-poliert
Operating pressure  
DN 25-100 10 bar
DN 125 / 150   6 bar
Vacuum 1,5 - 10-6 >(mbar × l/s)
Pressure shock resistance bis 40 bar
  (closed valve position)
Control air pressure 4,5-8 bar
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