Comeval - Diaphragm valve weir - DIAVAL® Fig. W
Isolating or Shut Off Valves are those which are devised to interrupt the flow in a System by means of a mechanically guided closure element. Linear Isolating valves are featured by the movement of the stem guiding the closure element downwards to get the valve closed and upwards to get it open.
The closing and opening actions are featured by a slow movement and usually governed by a multi turn hand wheel. They mean the right choice on compressible fluids such as steam to avoid those quick turning movements that might damage the valve and / or the System because of hydraulic phenomena.
Diaphragm valves weir type fluoropolymer lined DIAVAL® Fig. W
Diaphragm valves weir type fluoropolymer lined Fig. W
Fig. WWeir type diaphragm valves, bidirectional, for stopping or regulating the flow of the service fluid in HVAC, water treatment plants or process industry. Valves are bolted bonnet, seatless design, with a diaphragm as closure element, with rising handwheel. Easy and inexpensive maintenance, by change of diaphragm. Operated by handwheel or actuator.
Specification of the range: Diverse design combinations by materials of construction of bodies, linings and diaphragms, nominal size range (up to DN300), design pressure range (up to PN16), as well as operation style and accessories.
Other typical denominations: Diaphragm valves weir type
Applications: Water, HVAC, lubrication, process, etc.
Certifications: Diaphragm valves weir type straight through typedeclaration of conformity atex, Diaphragm valves weir type straight through type declaration of conformity, Eac declaration 010, Eac declaration 032
