VR And VH Series Butterfly Valve Replacement Actuator

The VH Series High Performance Butterfly Valve features a double offset (or, double eccentric) shaftdesign to minimize seat abrasion and lower torque. This double offset design allows the disc to lift offand “cam” away.
Overview

The VH Series High Performance Butterfl y Valve features a double offset (or, double eccentric) shaft design to minimize seat abrasion andlower torque. This double offset design allows the disc to lift off and “cam” away from the seat as it rotates open. The VH series valve alwaysrotates clockwise to close (when viewed from above) and counter clockwise to open. The valve body has an Over travel Stop which preventsthe disc from over rotating into the wrong quadrant. This stop is not to be used as a disc position stop; if the disc contacts the Over travelStop, this means it has rotated beyond the seat.
The VH series valve must be installed with the seat in the upstream position (SUS). Note the arrow on the metal tag attached to the valvebody.
Every VH series valve has a metal identifi cation tag attached to the valve body. Information includes the Figure Number, the Size andPressure Class, the Materials of Construction, and the Operating Pressures and Temperatures.
Features & Benefi ts:
Bi-directional fl ow
304 stainless steel disks
Ductile iron valve body for increased strength and durability
Stainless steel valve stem
EPDM resilient valve seat doubles as fl ange gasket
Bubble-tight seat leakage at rated close-off
Close-off rating of 200 psid in sizes 2 to 12in
Close-off rating of 150 psid in sizes 14 to 24in
ISO 5211 actuator mounting fl ange
Available with factory-installed electric actuation interfaces in 2-position, Floating (“tri-state”), or Modulating (2 to 10V DC) Control
Manual override on all models
Fail-safe actuators available on valves up to 12in
For use with hot, chilled or condensing water with up to 60% glycol in HVAC systems
Certifi cations:
Actuators on 6in and smaller two-way valves and 4in and smaller 3-way valves: cULus, CE
Actuators on 8in and larger 2-way valves and 5in and larger 3-way valves: cCSAus, CE