DeZurik PEC 4200 매뉴얼 - 페이지 8

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DeZURIK

3650-7200 PEC Eccentric Valves

Installation (continued)

Suspended Solids

If the pipeline carries suspended solids such as paper stock of 2 percent or higher consistency, mining

slurry, or raw sewage:

1. Before installation, remove foreign material such as weld spatter, oil, grease, and dirt from the

valve and pipeline.

2. Install the valve as shown in Figure 3.

a. In H

ORIZONTAL

upward as the valve opens.

b. For V

ERTICAL

NOTE: In the case of limited space where both the

recommended seat orientation shown and the

recommended plug orientation described in 2a above, are

not possible, the recommended plug position shall

always take precedence.

For Pump Isolation Service, install the discharge valve

with the seat toward the pump and with the plug rotating to

the top of the pipeline in the open position. On the suction

side, install the valve with the seat toward the pump.

3. Tighten the flange bolts or studs in a crisscross pattern.

4. Ensure the valve and flanges are concentric to ensure proper flange sealing.

D10019

pipelines, install the valve so that the plug is horizontal and rotates

pipelines, install the valve with the end marked "S

Figure 3 — Liquids with Suspended Solids

Page 8

" at top of valve.

EAT

April 2015