Install Instructions

ManualsBrandsTaco ManualsFlow Control Valves2-1/2" Threaded Plus Two Multi Purpose Valve (122 Cv)

INTRODUCTION/APPLICATION

The Taco Plus Two Multi-Purpose Valve incorporates all of

the functions required on the discharge side of a pump in a

Hydronic System into one valve. It is a spring loaded non

slam check valve, a shut off valve, a flow control valve and

a flow metering valve.

Each valve has a calibrated nameplate for system balancing

(approximate). All valves are equipped with metering ports for

taking differential pressure readings that can be used with

corresponding flow charts for more accurate system balance.

OPERATING LIMITATIONS

INSTALLATION

1. It is critical that the Taco Plus Two Multi-Purpose Valve

is always installed with the shaft facing upwards as indi-

cated in the diagrams.

2. The Taco Plus Two Multi-Purpose Valve should be mount-

ed to a spool piece on the discharge side of the pump. It

is recommended that a spool piece of 12" be used on

pumps with a discharge size of 1.5" through 6" and a 24"

spool piece be used for discharge sizes 8" through 12".

3. In order to prevent any objectionable system noise,

mounting of the valve directly to the pump is not rec-

ommended.

4. Provide sufficient clearance around the valve to facilitate

removal or repair.

5. Valve should be installed in the direction of the flow

arrows on the valve body.

6. The valve body is not designed to support the weight of

the system piping. Pipe hangers must be used and

properly installed in accordance with accepted industry

standards/practice. Pipe supports should be provided

under the valve bodies.

FIELD CONVERSION

(straight to angle pattern)

1. Open valve a minimum of one complete turn.

2. Remove the body bolts.

1.5" through 2.5" size valves require a

⁄

" allen key.

3" valve requires a

⁄

" allen key.

4" valve requires a

⁄

" allen key.

5" and 6" valves require

⁄

" allen key.

8" through 12" valves are

⁄

" hex cap bolts.

3. Rotate one half of valve body 180º while ensuring that

WARNING: Valve components can be very

heavy, employ proper lifting equipment when

working on valves. Failure to follow these

instructions can result in serious personal injury or

death and property damage.

Instruction Sheet

Plus Two Multi-Purpose Valve (MPV)

302-040

SUPERSEDES: June 1, 2005 EFFECTIVE: April 1, 2010

Plant ID No. 001-3881

CAUTION: THIS VALVE IS A CHECK VALVE. DEPRESSURIZE BOTH SIDES OF VALVE BEFORE

SERVICING THIS PRODUCT OR ATTACHED PIPING.

WARNING: FAILURE TO COMPLY WITH THESE INSTRUCTIONS REGARDING THIS VALVE CAN

RESULT IN SERIOUS PERSONAL INJURY OR DEATH AND/OR SEVERE PROPERTY DAMAGE.

SUCTION

DIFFUSER

PLUS TWO

MULTI PURPOSE

VALVE

BASE MOUNTED SINGLE SUCTION PUMP

SUCTION

DIFFUSER

PLUS TWO

MULTI PURPOSE

VALVE

VERTICAL IN – LINE PUMP

Summary of content (2 pages)

PAGE 1
Instruction Sheet 302-040 Plus Two Multi-Purpose Valve (MPV) SUPERSEDES: June 1, 2005 EFFECTIVE: April 1, 2010 Plant ID No. 001-3881 CAUTION: THIS VALVE IS A CHECK VALVE. DEPRESSURIZE BOTH SIDES OF VALVE BEFORE SERVICING THIS PRODUCT OR ATTACHED PIPING. WARNING: FAILURE TO COMPLY WITH THESE INSTRUCTIONS REGARDING THIS VALVE CAN RESULT IN SERIOUS PERSONAL INJURY OR DEATH AND/OR SEVERE PROPERTY DAMAGE.
PAGE 2
the body “O” ring and the “soft seat” remain in position (inspect the body “O” ring and the “soft seat” for any nicks or cuts and replace as necessary). 4. Reinstall the body bolts and torque to 50 ft lbs. REPLACING STEM PACKING WARNING: Hot system fluid leaking from valves can cause burns. Avoid contact with leaking system fluid when servicing any valve. Failure to follow this instruction can result in serious personal injury or death and property damage. CAUTION: Safety glasses should be worn.