Page 53 - RACI

AIR VALVES AIR VALVES 5

COMBINATION TYPE FROM
DUCTILE IRON AND PA

MOD. 5371 PN 16 DN 50-250
MOD. 5372 PN 25 DN 50-250

Flanged connection, stainless steel fasteners.

SPECIAL FEATURES

• Double orifice type, fully automatic triple function for
releasing air during pipe filling and bringing air
in (anti-vacuum) during pipe emptying, releasing air
under pressure.

• Kinetic function carried out by ductile iron unit, air
releasing under pressure executed by PA unit.

• Performances according to the requirements of
EN 1074.

• Body and cover high quality polyamide (Rilsan – PA11)
powder coated (fusion bonded), coating thickness
DFT min. 250 micron, zero porosity (tested with
3000V), high impact resistance and cross-linkage
according to DIN 30677-2 and DIN 3476.

• Floats from non-corrosive material.

• Body provided with threaded drilling for discharging
ball valve connection (available on request).

• Flanged connection with multi-size universal drilling to
reduce stock variances (DN 50-65 PN 16-25; DN 80
PN 16-25 and DN 100 PN 16-25).

• From DN150 slip-on flange version: versatility and
orientation changing on field option.

• Inner basket (up to DN80) or special guides into body
casting (from DN150) to keep float in optimal position
during operation.

• Minimum operating pressure for watertight: 0,5 bar.

>> PERFORMANCES:
FUNCTIONAL DIAGRAMs
at page 5.11
and at pag. 5.12

All metal, rubber, and coatings used have been designed for contact with water for human consumption, pursuant to the terms of Italian Health Ministry decree
n° 174, dated 6/4/2004.

info@raci.it - www.raci.it - Tel. +39 02 262.351 5.7 © RACI srl - ISO 9001 - Catalog Ed 10/2016