12 Installation in piping
12.3 Installation with union ends
Fig. 2: Union end with insert
▶ The solvent cement is not included in the scope of deliv-
ery.
Only use suitable solvent cement!
●
1. Keep solvent cement ready.
2. Carry out preparations for installation (see chapter "Pre-
paring for installation").
3. Adhere to good welding practices!
4. Screw the threaded connections into the piping in accord-
ance with valid standards.
5. Unscrew the union nut from the GEMÜ R677 body.
6. Reinsert the O-ring if necessary.
7. Push the union nut over the piping.
8. Connect the insert with the piping by solvent cementing/
welding.
9. Screw the union nut back onto the GEMÜ R677 body.
10. Connect the GEMÜ R677 body to the piping on the other
side in a like manner.
11. Re-attach or reactivate all safety and protective devices.
12.4 Installation with flanged connection
Fig. 3: Flanged connection
Sealing material!
▶ The sealing material is not included in the scope of deliv-
ery.
Only use appropriate sealing material.
●
GEMÜ R677
NOTICE
NOTICE
Connector elements!
▶ The connector elements are not included in the scope of
delivery.
Only use connector elements made of approved materi-
●
als.
Observe permissible tightening torque of the bolts.
●
1. Keep sealing material ready.
2. Carry out preparations for installation (see chapter "Pre-
paring for installation").
3. Ensure clean, undamaged sealing surfaces on the connec-
tion flanges.
4. Align flanges carefully before installing them.
5. Clamp the product centrally between the piping with
flanges.
6. Centre the gaskets.
7. Connect the valve flange and the piping flange using ap-
propriate sealing materials and matching bolting.
8. Use all flange holes.
9. Tighten the bolts diagonally.
10. Re-attach or reactivate all safety and protective devices.
12.5 Installation with solvent cement spigots
Fig. 4: Solvent cement spigot
▶ The solvent cement is not included in the scope of deliv-
ery.
Only use suitable solvent cement!
●
1. Carry out preparations for installation (see chapter "Pre-
parations for installation").
2. Apply solvent cement on the outside of the valve body
spigots and on the inside of the piping as specified by the
solvent cement manufacturer.
3. Connect the body of the product with the piping.
4. Reactivate all safety and protective devices.
56 / 64
NOTICE
NOTICE
www.gemu-group.com