Overground ductile iron hydrant breakable DN80 double or single closing

APPLICATION

Waterworks and fire-fighting installations.

DESIGN FEATURES

• hydrant body- monolith made of ductile iron EN GJS-500-7
• rolled stem made of stainless steel (2H13, AISI 420, 1.4021)
• protection against breaking
• stem seal – o-ring
• self – draining when fully closed
• rod- constructional steel with anti-corrosive coathing or stainless steel
• special A2 bolt at the breaking point
• double or single piston closing system
• closing pistons – ductile iron, fully vulcanised with EPDM
• rotating flange – for easier installation rotates 0° to 360°
• internal elements may be replaced under pressure (with the gate valve fully open)
• corrosion protection:
  – external- polyester RAL3000, min. 250 μm, UV resistant
  – internal – epoxy coating approved for contact with drinking water
• optionally – brass bushing at piston working location

TECHNICAL DATA/ STANDARDS

• design, requirements, test methods, application acc. PN-EN 14339, PN-EN 1074-6
• material acc. PN-EN 1563
• flange PN16 acc. PN-EN 1092-2
• base B75 acc. PN-M-51038
• operating wrench acc. PN-63/M-74085, DIN 3223