Non-Return Valve ULTRA 35, Stainless Steel

Ultra-performance protection against gas return: compact, quiet, ideal for low pressure applications. Opening pressure approx. 3 mbar, working pressure up to 16 bar, G 1.1/2 - G 2

safety element: non-return valve [NV]
every non-return valve 100% tested
ultra-low opening pressures (approx. 3 mbar), ultra-low pressure drop
compact and light: 90 X 145 mm, 2.789 g
minimal noise emission
dirt filter (100 μm) on gas inlet
ideal for biogas desulphurisation systems
for applications where low pressures are used
use is possible for applications according to EN 746-2

Information

WITT non-return valves for reliable protection against dangerous reverse gas flow. Every non-return valve 100% tested.

Benefits:

a spring-loaded non-return valve prevents a reverse flow of gases which could lead to unwanted gas mixtures
low pressure drops – using complex valve assembly with low opening pressures
no leaks – using a spring-loaded valve assembly with elastomer sealing
stainless steel filter (100 μm) in the gas inlet protects the non-return valve against dirt contamination, extending the service life
diverse applications – useful for many technical gases

Operation / Usage:

non-return valves are used to protect equipment and pipelines against dangerous reverse gas flow. Use is possible for applications according to EN 746-2
ideal for use with corrosive gases in the chemical industry, process technology or in laboratories
WITT non-return valves may be mounted in any position / orientation the maximum ambient / working temperature is 70 °C / 158 °F

Maintenance:

annual testing of the non-return valve and body leak tightness is recommended
WITT is happy to supply special test equipment
non-return valves are only to be serviced by the manufacturer. The dirt filter may be replaced by competent staff

Approvals
Company certified to ISO 9001 and PED 2014/68/EC Module H
CE-marked in accordance with PED 2014/68/EC
Cleaned for Oxygen Service according to EIGA IGC Doc 13/12/E: Oxygen Pipeline and Piping Systems