Pressure equipment directive 97/23/EC Category III Module H – Fig ...

FIG. 185 GG25 CAST IRON STRAINER PN 16
INSTALLATION AND ASSEMBLY
• Make sure that the PN indicated on the body valve (PN16) complies with the operating condition of the plant;
• Make sure that the body and sreen materials comply with the operating conditions of the plant (type of fluid);
• Before installation clean the strainer inside to remove any foregn matter;
• Install strainer according to the flow arrow casted on the body;
• Install strainer avoiding strenghts and stresses which could cause breakage.
USE RECOMMENDATIONS
• Avoid water hammering and sharp temperature and pressure changes;
• Use suitable protections in presence of explosive, inflammable, toxic or corrosive fluids or if high or low operating
temperature are present.
OPERATING INSTRUCTIONS
Following to the direction of the flow indicated on the body with the flow arrow, this strainer acts automatically the function to
filter the fluid. No manual action is required.
WARNINGS
The pressure equipments, due to their characteristics and to the fluids which they are in contact with, may represent
an hazard to people and environment. To prevent and limit the risks deriving from the pressure equipment operation and to
avoid personal injuries, the final user/maintenance technician must be sufficiently trained and expert.
This operating and maintenance instructions are useful but not sufficient to prevent the risks deriving from the non correct use
of pressure equipments; the installer will find indications to minimize the effects deriving from intrinsic risks which cannot be
eliminated.
Pressure equipment directive 97/23/EC Category III Module H –
Fig. 185 Operating and maintenance instructions
Date 15/01/2002 rev. 1 Approved by:
PAGE 1/2

FIG. 185 GG25 CAST IRON STRAINER PN 16
MAINTENANCE INSTRUCTIONS
DUE TO PARTICULAR HEAVY USE IN LONG PERIOD, THE CLEANING/SUBSTITUTION OF THE STAINLESS STEEL
SCREEN CAN BE OBTAINED AS FOLLOWS:
1. STOP THE FLUID INSIDE THE PLANT;
2. CHECK PRESSURE= 0 INSIDE THE PLANT;
3. UNSCREW THE BONNET BOLTS NR 6;
4. REMOVE THE BONNET NR 4;
5. REMOVE THE SCREEN NR 2;
6. CLEAN OR SUBSTITUTE THE SCREEN NR 2 (AVAILABLE AS SPARE PART);
7. PLACE THE GASKET NR 3 IN THE BODY SEAT;
8. PLACE THE BONNET NR 4;
9. SCREW THE BOLTS NR 6;
10. FILL THE PRESSURE OF THE FLUID INSIDE THE PLANT SLOWLY TO PREVENT ACCIDENT.
Pressure equipment directive 97/23/EC Category III Module H –
Fig. 185 Operating and maintenance instructions
Date 15/01/2002 rev. 1 Approved by:
PAGE 2/2