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Specifications
Three port mixing control valves for:hot water ,chilled water,Domestic Hot Water,in Heating, Ventilating, Air ConditioningApplication
Three port mixing control valves for:hot water ,chilled water,Domestic Hot Water,in Heating, Ventilating, Air Conditioning Systems,Open Circuits.
Features
Bronze body with BSPT-threaded connections.
. Stainless steel stem and brass plug.
. Low seat leakage rate (.0.05 percent of Kvs).
. Spring-loaded, self-adjusting packing.
. Accurate positioning to ensure state of the art
temperature control.
. Sizes range from 1-1/4 in. to 2 in.
Specifications
Action: Stem up to close port A-AB
Nominal pressure rating: 20 bar (300 psi)
Flow characteristic: See Fig. 2
Equal percentage port A-AB
Linear port B-AB
Rangeability: 50:1
Leakage rate: ≤0.05% of kvs
Stroke: 20 mm
Valve body:
Pipe connections: Internal BSPT-threaded
Material: Bronze
Dimensions: See Fig. 1
Trim:
Seat: Integral brass (upper)
Replaceable brass (lower)
Plug: Brass
Stem: Stainless steel
Packing: Spring loaded carbon fiber
reinforced PTFE V-rings
Medium temperature and
pressure: Water 2 to 120 °C max. 20 bar
120 to 170 °C max. 12.8 bar
To be operated by
?electric linear actuators as PRVAR5
Installation
Water should meet VDI2035 requirements.
Do not install valve with stem below the horizontal.
Fluid flow must correspond with the arrow direction on the
valve body.
The installation of a strainer is strongly recommended.
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