NVD 812 Danfoss
Check valve wafer

NVD 812 Danfoss Check valve wafer
calculation and selection
98 % - model rating
Drawing NVD 812 Danfoss Check valve wafer Design NVD 812 Danfoss Check valve wafer Scheme NVD 812 Danfoss Check valve wafer
Data sheet
EU Declaration of conformity
Installation and operating instructions

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Model
NVD 812
Manufacturer
Country
Denmark
Allowable working fluids
Water
Connection type
flange joint
Mechanism
disc
Execution
spring-loaded
Tmax (for water)
350 °C
Tmin (for water)
-10 °C
Body material
stainless steel
Kvs m³/h
dP= 0.0 kPa

technical
specifications
price

DN
mm 		Kvs
m³/h 		l
mm 		m
kg 		PN
bar 		price
15 4.3 16 0.10 40 add your price
20 7.8 19 0.14 40 add your price
25 12 22 0.23 40 add your price
32 18 28 0.35 40 add your price
40 28 32 0.52 40 add your price
50 40 40 0.73 40 add your price
65 73 46 1.52 40 add your price
80 111 50 2.17 40 add your price
100 182 60 3.35 40 add your price
125 302 90 8.55 40 add your price
150 370 106 13 40 add your price
200 546 140 30 40 add your price

DN - nominal diameter, mm.

m - mass, kg.

L - length along pipeline axis, mm.

PN - nominal pressure, bar.

Kvs - flow coefficient, corresponds to water flow rate in m³/h at which pressure loss on pipeline fittings equals 1 bar.

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DN
Nominal diameter DN
mm
PN
Nominal pressure PN
bar
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