Spring Vibration Isolator

Spring Vibration Isolator

PTM-A SERIES (Free Standing Spring Vibration Isolators)

Installation Instruction:

1. Block or lift up the equipment to a level that the equipment leg or base is 5mm higher than isolator’s operating height (see catalogue). If common base & height saving isolator bracket is used, keep 50mm clearance between the base and floor. Maintain this height until piping installation is completed.

2. Locate the spring isolator under the hole in equipment leg or isolator bracket. Connect locking cap screw and washer, but do not tighten.

3. Transfer the equipment weight to the spring by taking two anti-clockwise turns on each leveling bolt around the unit until springs are compressed just enough to remove the blocks.

4. Tighten the locking cap screw to lock the assembly.

PTM-C SERIES (Housed Spring Vibration Isolators)

Installation Instruction:

A. For PTM-C (External level adjusted) spring isolators

1. Take out the leveling bolt and lock nut from the top of the isolator.

2. Lift or block up the equipment leg or isolator bracket to 5mm higher isolator’s operating height (see catalogue) and slide the isolators into position. Put the levelling bolt & lock nut back into position.

3. Transfer the equipment weight to the spring by taking two clockwise turns on each leveling bolt around the unit until springs are compressed just enough to remove blocks.

4. Tighten the lock nut to lock the assembly.

B. For PTM-CH & PTH-CG (Internal level adjusted) spring isolators

1. Check that the internal levelling nut is adjusted up to underside of the top plate.

2. Lift or block up the equipment to 5mm higher than isolator’s operating height (see catalogue) and slide the isolators into position and adjust the levelling nut until the top plate is in contact with equipment base. Insert fastening screws (if used) through the equipment base into top of the mounting and tighten.

3. Transfer the equipment weight to the spring by taking two anti-clockwise turns on each leveling bolt around the unit until springs are compressed just enough to remove blocks.

PTM-D SERIES (Restrained Spring Vibration Isolators)

Installation Instruction:

1. Check that the internal levelling nut is adjusted up to underside of the top plate.

2. Lift or block up the equipment to 5mm higher than isolator’s operating height (see catalogue) and slide the isolators into position and adjust the levelling nut until the top plate is in contact with equipment base. Insert fastening screws (if used) through the equipment base into top of the mounting and tighten.

3. Check alignment of the base so that restraining bolts are central with clearance holes in the restraining bracket.

4. Transfer the equipment weight to the spring by taking two clockwise turns on each leveling bolt around the unit until springs are compressed just enough to remove blocks.

5. Adjust restraining nuts to give 2-3mm clearance between the resilient washer and the underside of the restraining bracket. Check the levelling again after the system is filled with water.

6. Tighten the lock nut to lock the assembly.

PTH-S and SG SERIES (Spring Vibration Isolating Hangers)

Installation Instruction:

1. Consider the height and location of the hanger and prepare the upper and lower hanging rod (bolt) in same proper length.

2. Attach the upper hanging rod (bolt) to the ceiling.

3. Connect the lower hanging rod (bolt) to the hanger. Precom-press the hanger spring element (Approx. 10mm) by tighten a restraint nut and washer at the bottom of the hanger.

4. Attach the hanger to the upper hanging rod (bolt).

5. Attach the haging rod (bolt) to the pipe, duct or equipment bracket.

6. Install all other hangers by repeating instruction 1-5.

7. After the pipe or equipment is filled with water, release the restraint nut. Levelling adjust the hanger by the nut at the top of the-element to obtain even level installation.

8. Final check the spring hanger in a proper deflection and don’t install the hanging rod (bolt) in a inclined position.