Instruction Manual

Instruction Manual

D102137X012

KALREZ System - Rotary-Shaft Valves

May 2011

Installing a KALREZ Packing System

Refer to figure 1.

Note

When installing a KALREZ packing system into an insulated valve, do not cover the Belleville packing springs with insulation.

CAUTION

Use caution when removing existing internal packing parts. Do not scratch, nick, or dent the valve shaft.

Note

The valve shaft surface condition is critical in obtaining a good seal. If the valve shaft surface is scratched, nicked, or worn, replace

the valve shaft before installing the KALREZ Packing System.

1. Remove old packing parts from the packing box by using the valve instruction manual procedures. Refer to the

appropriate valve instruction manual to replace the valve shaft and valve parts.

2. If the piping and valve are insulated, do not allow the insulation to cover the KALREZ Belleville springs.

3. If you are converting an existing valve to this packing, remove existing packing box studs from the valve body, and

replace them with longer studs (as required).

Note

KVSP packing systems should be installed as a complete set, NOT AS INDIVIDUAL PIECES OR COMPONENTS.

Note

Ensure that the Belleville springs are stacked properly (see figure 2) and packing box parts are assembled in the correct order (see

figure 1). Packing parts cannot function properly if the Belleville springs or other packing parts are not stacked correctly.

4. All kits include a single use packet of KRYTOXr GPL 206 high performance fluorinated grease to maximize service

life and ease of assembly. KRYTOX lubricants are chemically inert to the chemicals regulated under the U.S. Clean

Air Act, non‐reactive to gaseous and liquid oxygen and chlorine services, with chemical compatibility consistent

with KALREZ and the KVSP Systems.

5. Apply the KRYTOX lubricant liberally to both the I.D. (inner diameter) and O.D. (outer diameter) surfaces of each

KVSP component before installing. All exposed surfaces of the packing assembly should be fully covered.

6. With the shaft in place in the valve, install the packing parts into the valve packing box. Carefully slide the packing

down the shaft while being careful not to force the packing and damage it on the shaft spline. Use figures 1 and 2 to

ensure that the packing parts and spring pack are assembled in the correct order.

7. Be careful NOT to position the KVSP packing system adjacent to any lubrication holes in the packing box which

could compromise its sealing performance.