check valve Art. 604
----------------- 		  B.R.V.bonetti rubinetterie valduggia
Loc. Molino Rastelli, 2 I-13018 VALDUGGIA (VC) ITALY
Tel. +39 0163 48062 - Fax +39 0163 48188
http://www.brv.it - email: info@brv.it

604

Check valve with external adjustment control and coupling flange for 1" circulating pumps.
Brass nut of 1"1/2 and gasket available on demand.
1" female threaded end.
PN 16. Max. 95°C.
End threaded to ISO 228 (DIN 259 BSP 2779).
Sizes: 1"

WORKING PRESSURE
for water, oil and non aggressive fluids (+25°C) 16 bar
minimum pressure for check valve opening 20 mbar
max. backflow direction pressure 3.5 bar

WORKING TEMPERATURE
Min. -20°C Max. +95°C

TEST PRESSURE
seal pneumatic test 6.5 bar

Dimensions
Dimensions
Rightflow direction
COMPONENTS MATERIAL-TREATMENT Q.
Body
External control stem
Stem-seal O-ring
Check valve
 		Brass P-CuZn40Pb2; Nickel plated
Brass P-CuZn40Pb2
E.P.D.M. Peroxid
Acetalic resin
 1
1
1
1

Size 1/4" 3/8" 1/2" 3/4" 1" 1"¼ 1"½ 2"
A
B
CH
DN
Gr.
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-
-
-
-
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-
-
-
-
 		-
-
-
-
-
 		-
-
-
-
-
 		48.6
12
37
25
139
 		-
-
-
-
-
 		-
-
-
-
-
 		-
-
-
-
-
M.Carton                
604
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 		180
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DOC. 04.02 10/11/03