Butterfly Valve

DENZ B10 Double Eccentric Butterfly Valves Series 14 are most often used in water supply applications below ground as an alternative to gate valves. In comparison to gate valves, Double Eccentric butterfly valves require a lower bury depth and, in general, they are more costeffective, especially for larger diameters. The construction in double eccentric allows its operation with very low operating torques and at the same time shutoff element wear is minimal, and the useful life of the valve is thus prolonged. They are designed to provide high tightness and are the ideal solution for processes where there is little space. DENZ B10 is a basic component in any hydraulic installation where the highest reliability, control and performance of the system are required. 

• ENGJS500-7 Ductile iron body and bonnet for high

strength and impact resistance.

• This valve is designed as a resilient seated type. There

is an option to order the metal seated type for specific

orders.

• As a default, the sealing ring on the disc is EPDM. Various

options are available, including NBR and VITON.

• Double eccentric / double offset disc design prolongs

the life cycle of the sealing and the valve.

• A welding seat made of SS308 LSI grade stainless steel

is manufactured on the body using automatic welding

machines and microfinished precision milling. The disc

sealing ring applies equal pressure to all points of the

welding seat once the disc is fully closed.

• Coatings that meet WRAS hygienic standards are

available upon request.

• Due to the double shaft design, pressure loss is minimized and energy efficiency is increased.

• During the installation process, it is important to consider the direction arrow on the body.

• Disc sealing ring can easily be replaced by removing the retaining ring through its bolts without

dismantling the valve from the pipeline. Replacing the disc sealing ring doesn’t require any additional

tools.

• The disc sealing ring applies equal pressure to all points on the welding seat when the disc is fully closed.

Drop-tight closure.

• Double O-ring feature on both shafts ensures high sealing.

• The shafts are equipped with corrosion-resistant bronze bushings.

• DENZ B10 Double Eccentric Butterfly Valve has been designed to operate bi-directionally in accordance

with EN1074-2. A direction arrow on the body should be considered for proper installation.

• A balanced position of lifting holes on the body makes transportation and installation easier.

• During the installation process, it is important to consider the direction arrow on the body.

• AISI420 stainless steel spindle for high strength and corrosion resistance

• 100% of the valves are subjected to Hydrostatic tests according to EN 12266-1. Pressure for seat: PN x 1.1 ,

for shell: PN x 1.5