316 Stainless Steel Inline Wafer Single Disc Check Valve. Wafer design to suit ANSI 150/300, DIN PN16/25/40 & Table H (will also fit Table D & E in some sizes, see dimensions tab for flange compatibility). Face to face in accordance with DIN3202-K4. Spring loading allows this check valve to be installed on any angle.

Model Size (mm) Media Pressure Media Temperature Cracking Pressure (mBar) Cv
SDC-15 15 0 to 40 BAR -20°C to 220°C 23 5.1
SDC-20 20 0 to 40 BAR -20°C to 220°C 23 7.9
SDC-25 25 0 to 40 BAR -20°C to 220°C 23 11.7
SDC-32 32 0 to 40 BAR -20°C to 220°C 24 19.8
SDC-40 40 0 to 40 BAR -20°C to 220°C 25 30.3
SDC-50 50 0 to 40 BAR -20°C to 220°C 25 50.2
SDC-65 65 0 to 40 BAR -20°C to 220°C 26 87.5
SDC-80 80 0 to 40 BAR -20°C to 220°C 26 130.7
SDC-100 100 0 to 40 BAR -20°C to 220°C 27 200.7
SDC-125 125 0 to 40 BAR -20°C to 220°C 36 295.3
SDC-150 150 0 to 40 BAR -20°C to 220°C 36 421.3
SDC-200 200 0 to 40 BAR -20°C to 220°C 40 597.5

 

Stainless Steel In Line Check Valve Temperature vs Pressure 

Stainless Steel Single Disc Wafer Check Valve

DN Size d D D1 D2 L H kgs
15 1/2" 15 39 28.5 32 16 3 0.10
20 3/4" 20 46 36.2 40 19 3 0.14
25 1" 25 54 43.3 46 21 3 0.20
32 1-1/4" 32 70 56 60 27 3.5 0.36
40 1-1/2" 40 83 68.5 72 31 3.5 0.51
50 2" 49 96 80.5 84 40 4 0.78
65 2-1/2" 62 115 99 103 46 5 1.24
80 3" 75 135 117 123 50 5 1.92
100 4" 85 153 135 140 60 6 2.62

Stainless Steel Single Disc Check Valve 

DN Size d D D1 D2 L H W kgs
125 5" 118 187 160 177 90 18 6.8 5.5
150 6" 140 217 187 205 106 23 7.2 8.3
200 8" 185 267 240 261 140 32 8 16.1

All dimensions in mm unless shown otherwise. 

Suitable Flanges (Black will fit, Red will not), showing innner diameter of bolt hole

SDC Outer Diameter DIN ANSI AU
PN10 PN16 PN25 PN40 150Lb 300Lb Table D Table E
DN15 39 51 51 51 51 45.5 51.5 53 53
DN20 46 61 61 61 61 55 63.5 59 59
DN25 54 71 71 71 71 64.5 70 69 69
DN32 70 82 82 82 82 74 79.5 73 73
DN40 83 92 92 92 92 83.5 92.5 84 84
DN50 96 107 107 107 107 101.5 108 96 96
DN65 115 127 127 127 127 120.5 127 109 109
DN80 135 142 142 142 142 133.5* 146.5 128 128
DN100 153 162 162 168 168 171.5 178 160 160
DN125 187 192 192 194 194 194 213 192 192
DN150 217 218 218 224 224 219.5 248 217 213
DN200 274 273 273 284 290 276.5 305 274 270

*Bolts will fit on DN80 ANSI 150. Bolt hole size is 19mm and bolt size is 16mm

Stainless Steel Inline Single Disc Check Valve

Item Part Material QTY
1 Body CF8M 1
2 Spring Cover SS316 1
3 Spring SS316 1
4 Disc CF8M 1

Size 15mm to 200mm
Body 316 Stainless Steel
Seat Stainless Steel
Pressure Range 0 to 40 BAR
Temperature -20°Cto 220°C

Product History