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Series 200 Positive Displacement Rotary Pumps

Instruction Manual

 

BYPASS HEAD MODEL 200AX, 220TX

This TriRotor pump model has an intergral dashpot relief valve-in-head. The standard spring can be set up to 50 PSI at which setting it will bypass full volume; the heavy duty spring can be set up to 100 PSI.

TO ADJUST BYPASS RELIEF PRESSURE

Remove hexagonal cap (A) and loosen locknut. Turn adjusting screw (B) in to increase pressure and out to decrease pressure. Tighten locknut and replace hexagonal cap, making sure copper gasket is in place.

TO REVERSE DIRECTION OF ROTATION 200AX, 220TX
(5 STEPS)

CAUTION: After reversing rotation, bypass relief valve no longer functions. A relief valve should be installed in the discharge line. For automatic operation, order from the factory a complete head of opposite rotation.

STEP 1: Unbolt bypass head and remove with bypass head gasket as one unit, making sure gasket is not damaged.

STEP 2: Unbolt shaft housing and remove together with rotor group and gasket as one unit. LEAVE HEAD IN THREE UNITS AS PICTURED.

STEP 3: Turn body "about face" and switch dowel pins.

STEP 4: Bolt the three sections back together, making sure the shuttle pin enters the bore of the shuttle.

STEP 5: Reverse wiring to run motor in opposite direction.

NOTE: Bypass relief valve will not function. Refer to caution above.

SOLID HEAD MODEL 200A, 220T

The model 200A, 220T has a solid head with the shuttle pin set in a fixed position to give constant volume for simple transfer service. A relief valve should be installed in the discharge line for protection.

TO REVERSE DIRECTION OF ROTATION 200A, 220T
(5 STEPS)


STEP 1: Unbolt solid head and remove with head gasket as one unit, making sure gasket is not damaged.

STEP 2: Unbolt shaft housing and remove together with rotor group and gasket as one unit. THIS LEAVES PUMP IN THREE SECTIONS AS PICTURED.

STEP 3: Turn body "about face" and switch dowel pins.

STEP 4: Bolt the three sections back together, making sure the shuttle pin enters the bore of the shuttle.

STEP 5: Reverse wiring to run motor in opposite direction.