- Cover: polyamide based (PA) technopolymer, black colour, matte finish. Graphic symbol "double valve".
- Threaded connector: acetal based technopolymer (POM), black colour, matte finish.
NBR synthetic rubber.
Technopolymer with NBR synthetic rubber O-ring and stainless steel spring.Set at around 0.350 bar (on request 0.700 bar).
Technopolymer sealing disk with NBR synthetic rubber O-ring and stainless steel spring.Set at around 0.030 bar.
Ring-shaped air filter
"Tech-foam" polyurethane foam mesh (polyester base), air filtration 40 µ.
Acetal resin-based (POM) technopolymer, red colour, with stainless steel anti-intrusion-profile insert. Folding. On request it can be supplied in black colour too.
Maximum continuous working temperature
"Vandal-proof" safety device (ELESA patent)
It is especially designed to prevent the cap from being unscrewed without permission. It is provided with a "controlled-torque" mechanism which guarantees the best seal of the packing ring.