Valves



Application:
• Wherever reliable separation of media is required and where the increased switching leakage compared to double seat mixproof valves and double seat valves can be com-pensated by the more economical price of the leakage butterfly valve.
 
Features:
• In the basic version, two butterfly valves and one leakage valve are always switched si-multaneously. As an extra option, leakage butterfly valves are available with rinsing valve.
• When both butterfly flaps are closed, the leakage valve is open. If leakage occurs in one of the butterfly valves, e.g. because a foreign body got stuck, the leakage can flow out under atmospheric pressure.
• Besides the mechanical restricted guid-ance, a restricted guidance can also be ob-tained by the control unit. This reduces the switching losses at comparable investment costs.
• Hygienic
• Extremely sturdy, reliable in operation
• Available in nominal sizes from DN 25 to DN 125
• Always produced of forged or hot-rolled material
Design:
• Manually actuated
• Pneumatically actuated :
o spring opening
o spring closing
o air/air
• For welding on
• As intermediate flange version
• With pipe connections from the Nocado lines
• End position feedback with:
o proximity initiators (also Namur)
o mechanical limit switches
• Control head also with bus
• Sealing materials according to FDA directive:
o Silicone (also transparent version)
o HNBR
o EPDM
o Viton
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