tekmar 711 3-Way Mixing Valve - Manual

1 of 2 © 2011 D 711 - 09/11
D 711
09/11
- Data Brochure
3-Way Mixing Valve 711
The 3-Way Brass Mixing Valve 711 is used to mix supply water from a heat source with water
returning from a system. It is designed for use in either closed loop or open loop hydronic systems.
It connects to pipe using standard female NPT threads. The valve provides a maximum leak
through rate of 1% to allow for water expansion during temperature changes. The valve position
can be manually set using the handle. An Actuating Motor 741 can be used to automatically
operate the valve.
Sequence of Operation
Installation
Check the contents of the package. If any of the items listed below are missing or damaged, please refer to the Limited Warranty
and Product Return Procedure on the back of this brochure and contact your wholesaler or local tekmar representative.
• One Mixing Valve & One Data Brochure D 711
IMPORTANT: When mounting the valve, leave a minimum of 4” (10 cm) clearance between the bottom cover and surroundings.
This will ensure that all valve components can be easily serviced.
When the flap is in the fully closed position, 100% of the heating system return water is supplied to the system. When the
valve flap is in the fully open position, 100% of the boiler supply water enters the heating system. Mixing of the water takes
place when the valve flap is in an intermediate position.
supply
supply supply
supply
return
from
boiler
• Factory position
• No changes required • Rotate handle 1/4 turn
• Flip face plate over • Rotate handle 1/4 turn • Rotate handle 1/2 turn
• Flip face plate over
return
from
boiler
return
from
boiler
return
from
boiler
Replacement Parts
The Mixing Valve Handle Kit M3047 contains a replacement
manual valve handle, a brass screw, a “C” clip, and a position
indicator plate.
The Replacement O-Ring kit contains a small, a medium and
a large o-ring. Use M3056 kit for valves 3/4” to 1-1/4”.
brass
screw
handle
“C” clip
indicator plate