7
EN
7. Replacement kits
7.1 Seal kits
7.2 Spring kits
PN16, PN25 and PN40 seal kits
DN
Watts code
mm
“
50
2”
166922
65
2 ½’’
202174
80
3”
162935
100
4’’
167069
125
5’’
166929
150
6’’
162947
200
8’’
166930
DN 50-100 Item N°
140,150,160,170,180,185,190,195
DN 125-200 Item N°
160,170,180,190,200,210,220,260
Composition
1 kit with 1 piece of each item
Spring kits (2 to 8 bar)
DN
Watts code
mm
“
50
2”
166921
65
2 ½’’
166923
80
3”
162928
100
4’’
162931
125
5’’
202166
150
6’’
0599075
200
8’’
202167
Spring kits (4 to 12 bar)
DN
Watts code
mm
“
50
2”
167028
65
2 ½’’
166924
80
3”
166926
100
4’’
166927
125
5’’
166928
150
6’’
167092
200
8’’
167103
6.3 Modifying the adjustment range by changing the spring kit
Maintenance and assembly instructions:
1- De-pressurise the system and then isolate the device from it (remove from system if necessary),
2- Fully release the spring (150) (turn the adjuster screw (110) anti-clockwise),
3- Remove the valve head fixing screws (270) and then the valve head (20),
4- Remove the spring and washers (150-50),
5- Fit the new spring, with new washers if necessary,
6- Refit in reverse order to removal,
7- Re-fill with water and adjust as per the instructions provided above.
When ordering the kits, quote the information shown on the metal identification plate on the valve housing.
Summary of Contents for DN100
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