• Special gate valve to connect directly with socket ductile iron pipes.
• Manufactured according to the requirements of EN 1074 and EN 1171 (min. torque strength Class2).
• Body and bonnet high quality ePOXY powder coated (fusion bonded), coating thickness (DFt min. 250 microns), zero porosity (tested with 3000v), high impact resistance and cross-linkage according to DIN 30677-2 and DIN 3476.
• Multiple O-Ring spindle sealing system embedded in non-corrosive material to DIN 3547-1 and additional back lip-seal for double security.
• O-Rings changeable under pressure to IsO 7259.
• Non-rising stainless steel spindle (single forged round bar with rolled threading).
• Wedge inside and outside fully rubber vulcanised, with drain hole and special guiding rails to minimize friction.
• Solid flexible wedge nut from corrosion free material.
• Gliding disc on the spindle neck to reduce friction when operating the spindle. from DN 250 and bigger with additional axial roller bearing.
• Bolts protected against corrosion by special resin.
• Protection ring between body and bonnet to reduce risk of damages on the coating due to mechanical impacts during transport, handling and installation.
• Markings following EN 19.
• Manual operation by handwheel, operating cup, extension spindle (underground installation).

MATERIALS:

Body and bonnet:
Ductile iron EN-GJS-400-15/EN 1563 (former to DIN ggg40)

Spindle:
stainless steel 1.4021/EN ISO 10088 (equivalent to UNI X20Cr13 or AISI 420)

Wedge:
Ductile iron EN-GJS-400-15/eN 1563 (former to DIN ggg40), ePDM rubber vulcanised, potable water approved

Wedge nut:
Brass CuZn40Pb2

O-ring bush:
Brass CuZn40Pb2

Gliding disc:
POM

Back lip seal and bonnet seal:
EPDM rubber, potable water approved

Bonnet allen screws:
Steel class 8.8 to EN ISO 898, corrosion protected by special seal

Protection ring:
Reinforced plastic material

All metal, rubber, and coatings used have been designed for contact with water for human consumption, pursuant to the terms of Italian Health Ministry decree n° 174, dated 6/4/2004.