F51DD SS WAFER DOUBLE DOOR CHECK VALVE

PN16/PN25     Fig No.: F51DD16-50 (SS304) / F51DD16-51 (SS316) / F51DD25-50 (SS304) / F51DD25-51 (SS316)

FEATURES & SPECIFICATIONS
Spring loaded double door.
Rubber seat for non-slam effect.
Oil-free processing treatment option available.
Wafer connection to BS 4504 PN16 / EN 1092-2 PN16 / BS 4504 PN25 / EN 1092-2 PN25 / ANSI Class 150 (Specify on order).
Applicable for Building Services, Air-Conditioning, Fire-Protection, Cold Water Plumbing, Hot Water System, General Industries.
Working pressure : 16bar/25bar
Shell test pressure (x1.5) : 24bar/37.5bar
Seat test pressure (x1.1) : 17.6bar/27.5bar
Working temperature : -20°C … 120°C.
Suitable Media : Water, Oil & Gas.

Materials

Body Stainless Steel 304
Stainless Steel 316
Disc Stainless Steel 304
Stainless Steel 316
Stem Stainless Steel 304
Stainless Steel 316
Spring Stainless Steel 304
Stainless Steel 316
Shim PTFE
Gasket PTFE
Spool Stainless Steel 304

Dimensions (mm)

DIMENSIONS FOR PN16

DN (mm)
(inch)
50
2
65
80
3
100
4
125
5
150
6
200
8
250
10
300
12
350
14
400
16
450
18
500
20
600
24
L 43 46 64 64 70 76 89 114 114 127 140 152 152 178
D 107 127 142 160 192 218 273 328 384 444 495 555 615 734

DIMENSIONS FOR PN25

DN (mm)
(inch)
50
2
65
80
3
100
4
125
5
150
6
200
8
250
10
300
12
350
14
400
16
450
18
500
20
600
24
L 60 67 73 73 86 98 127 146 181 184 191 203 219 222
D 108 128 142 168 194 224 284 341 401 458 515 565 622 732

Related products

Submit An Inquiry

As a direct manufacturer, we have dedicated measurement, installation, and production teams to ensure a perfect fit every time.

Our representatives will contact you shortly to confirm your appointment date and time. Thank you for your interest!