Page 69 - RACI

NON RETURN VALVES NON RETURN VALVES 7

DOUBLE PLATE
WAFER CHECK VALVE

MOD. 7401 PN 10/16/25 DN 40 - 1200
Wafer valve short body to be installed between PN 10/16/25
and ANSI 150# flanges.

special features

• Non return valve central axis double plate with good
hydraulic performance against flow inversion.

• Short face to face connection, compactness and low
weight: easy handling and installation.

• Body high quality epoxy powder coated (fusion
bonded), minimum thickness 250 micron.

• Reliability and durability thanks to high quality
materials.

• Seal vulcanized on the seat of the body: seating class
A according to standard ISO 5208.

• Stainless steel springs to ensure immediate closure.

• Working temperature: from -10° C to +120°C.

• Minimum differential pressure of closing for a perfect
sealing: 0,5 bar.

• Face to face dimensions according to EN 558-1 series 16.

Materials

DN PN 10 1. Body PN 25 2. Plates 3. Stem 4. Key 5. Spring 6. Washer 7. Plug 8. O-Ring 9. Seat
PN 16 PN 10 PN 16 PN 25
Steel NBR BUNA-N
40 A216 WCB

50

65

80 EN GJS 400-15 Steel Steel Steel Steel
100 AISI-316 CF-8M AISI-316 AISI-302

125 T.T.

150

200

250 EN GJL EN GJS
300 250 400-15

350 EN GJL EN GJS
250 400-15
400 EN GJL EN GJS
450 250 400-15 EN GJS
500 EN GJS 400-15
400-15 A216
600 WCB Steel Steel Steel Steel
AISI-304 AISI-304 AISI-302 AISI-304
700
T.T.
800 EN GJS A216
900 400-15 WCB

1000 A216 A216
WCB WCB
1200 A216 A216
WCB WCB

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 7.3 © RACI srl - ISO 9001 - Catalog Ed 10/2016