Three port mixing control valves for:hot water ,chilled water,Domestic Hot Water,in Heating, Ventilating, Air Conditioning

Application

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.