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Check valve is designed to prevent fluid from flowing back and ensure the flow to one way direction.
It can be used to reduce the loss of fluid back suction,avoid pipe is shock by liquid
It is used in the food-processing, beverages, winery, oil, cosmetics,pharmaceuticals and chemicals industries.
The valve is open when pressure of the fluid exceeds the spring pressure and it is closed when the two pressures are close equal.And stronger counter-pressure also makes the valve closed.
Specifications: DN15 ~ DN100, 1/2' ~ 4'
Boby/shaft: AISI 316L/304
Spring: AISI 304
Seal: EPDM according to FDA177.2600
Surface Treatment: Ra ≤0.8 μm
Seal:NBR, FPM (Viton) or PTFE. FDA 177.2600(optional)
Connections: weld, thread, clamp, DIN, SMS, RJT, IDF, ISO,3A
Max. pressure：10 bar
Opening pressure：0.3bar(DN-25)0.2bar(DN-32/40)0.1bar(DN-50/100)
Working temperature ： -10℃ to 130℃(EPDM)
Clamp
DIN
|
3A
|
L
|
||||||
Size
|
Dn
|
D1
|
D
|
Size
|
Dn
|
D1
|
D
|
|
|
DN15 |
15 |
18 |
34 |
1/2' |
9.4 |
12.7 |
25.2 |
97 |
|
DN20 |
19 |
22 |
34 |
3/4' |
15.8 |
19.1 |
25.2 |
85 |
|
DN25 |
25 |
28 |
50.5 |
1' |
22.1 |
25.4 |
50.5 |
102.5 |
|
DN40 |
37 |
40 |
50.5 |
1 1/2' |
34.8 |
38.1 |
50.5 |
101 |
|
DN50 |
49 |
52 |
64 |
2' |
47.5 |
50.8 |
64 |
112 |
|
DN65 |
66 |
70 |
91 |
2 1/2' |
60.2 |
63.5 |
77.5 |
125 |
|
DN80 |
81 |
85 |
106 |
3' |
72.9 |
76.2 |
91 |
125 |
|
DN100 |
100 |
104 |
119 |
4' |
97.4 |
101.6 |
119 |
132 |
Weld
DIN
|
3A
|
L
|
||||
Size
|
Dn
|
D
|
Size
|
Dn
|
D
|
|
|
DN15 |
15 |
18 |
1/2' |
9.4 |
12.7 |
97 |
|
DN20 |
19 |
22 |
3/4' |
15.8 |
19.1 |
85 |
|
DN25 |
25 |
28 |
1' |
22.1 |
25.4 |
102.5 |
|
DN40 |
37 |
40 |
1 1/2' |
34.8 |
38.1 |
101 |
|
DN50 |
49 |
52 |
2' |
47.5 |
50.8 |
112 |
|
DN65 |
66 |
70 |
2 1/2' |
60.2 |
63.5 |
125 |
|
DN80 |
81 |
85 |
3' |
72.9 |
76.2 |
125 |
|
DN100 |
100 |
104 |
4' |
97.4 |
101.6 |
132 |
Thread
DIN
|
SMS
|
||||||
Size
|
Dn
|
Rd
|
L
|
Size
|
Dn
|
Rd
|
L
|
|
DN15 |
15 |
Rd34 * 1/8 |
114 |
12.7 |
9.4 |
Rd34 * 1/8 |
113 |
|
DN20 |
19 |
Rd44 * 1/6 |
103 |
19 |
15.8 |
Rd34 * 1/8 |
100 |
|
DN25 |
25 |
Rd52 * 1/6 |
102 |
25 |
22.4 |
Rd40 * 1/6 |
98 |
|
DN40 |
37 |
Rd65 * 1/6 |
104 |
38 |
35.1 |
Rd60 * 1/6 |
102 |
|
DN50 |
49 |
Rd78 * 1/6 |
110 |
51 |
47.8 |
Rd70 * 1/6 |
107 |
|
DN65 |
66 |
Rd95 * 1/6 |
124 |
63 |
60.2 |
Rd85 * 1/6 |
123 |
|
DN80 |
81 |
Rd110 * 1/4 |
126 |
76 |
73.2 |
Rd98 * 1/6 |
123 |
|
DN100 |
100 |
Rd130 * 1/4 |
130 |
106 |
97.6 |
Rd125 * 1/4 Rd132 * 1/6 |
127 130 |
Contact: Mask
Phone: +86 15801773163
Tel: +86 21-66168818
Email: sales@f-fluid.com
Add: Xuhui District, Shanghai, China