Surge anticipating valve – Series K1 41

Surge anticipating valve series K1 41, is a control valve allowing the relief of excessive upstream pressure in the event of rapid changes in flow in the network. It is involved in the event of a power failure and/or untimely shutdown of a pumping station, the excess pressure resulting from the transient mode can be dangerous for the valves at the pump outlet.
- Closes gradually when water arrives.
- Discharges excess pressure to atmosphere.

Applications :

• The device is installed as a bypass to the discharge pipe and discharges to atmosphere.
• To prevent untimely stoppage of a pumping operation.

Product benefits :

HYDROBLOC^® PREMIUM valves give you :

• Exceptional sensitivity and control accuracy
• A wider operating range, in complete safety, thanks to the standard SPD device.
• Longer service life thanks to the extensive use of 316 stainless steel.
• Easy installation and maintenance, thanks to the position indicator, the included pressure gauges and the tap with ergonomic lever.

Range :

• DN65 to 150 HYDROBLOC^® PREMIUM range
• PFA  25

Technical data :

• ISO PN drilled flanges according to PFA (EN 1092-2 et ISO 7005-2 standards)
• Working temperature : +0°C to +65°C.
• Face-to-face dimensions to EN 558-1.
• Sealing : Class A to standard ISO 5208-2.
• Watertight at zero flow.
• Supplied with position indicator.
• Opening/Closing speed controller
• NF EN 1074-5.
• Setting on site.
• Setting range HYDROBLOC^® PREMIUM : 1 – 16 bar

Norms and certifications :

• ACS
• WRAS on components 
• DVGW on components

Alternatives and options :

• Other DN and PFA
• Setting range : 10-25 bar
• Anti cavitation device ACD040 with slotted cylinders (possible up to DN 200).
• Remote position indicator
• Limit switch indicator
• Spare parts booklet

Guarantee :

• 5 years

Download technical datasheet

Dowload installation and maintenance manual