KNIFE EDGE GATE VALVES

SERIES 50SF Flanged wafer type
SERIES 50SW Lugged wafer type

     
  Features  
knife edge gate valves
Rugged design
Wafer type, round port single piece construction
Soft or metal seat
Valve length as per MSS SP-81
Drilling to suit Class 150, BS 10 table D or E, and ND 10
Pressure rating: cast iron: PN6 up to size 300 mm,
 
PN3 from size 350 to 600 mm. WCB and CF8M: PN10
     
        Dimensions are in inches and approximate weight in lb
SIZE
A
B
F
X
E
T
WEIGHT
2
1.88
4.75
6.00
3.62
1.9
0.50
25
3
2.00
6.00
7.50
5.00
2.8
0.50
34
4
2.00
7.50
9.00
6.19
3.7
0.50
42
5
2.25
8.50
10.00
7.31
4.6
0.63
53
6
2.25
9.50
11.00
8.50
5.5
0.63
62
8
2.75
11.75
13.50
10.62
7.3
0.63
101
10
2.75
14.25
16.00
12.75
9.1
0.75
143
12
3.00
17.00
19.00
15.00
10.8
0.75
187
14
3.00
18.75
21.00
16.25
11.8
0.81
231
16
3.50
21.25
23.50
18.50
13.5
0.88
334
18
3.50
22.75
25.00
21.00
15.2
0.94
400
20
4.50
25.00
27.50
23.00
18.8
1.00
596
24
4.50
29.50
32.00
27.25
20.4
1.00
810
 
       Materials of construction
Body Cast iron, WCB, CF8M, and other alloys
Gland packing PTFE, Grafoil
Gland WCB, CF8M, and other alloys
Gland stud B7
Gland nut 2H
Gate 304, 316, and other alloys
Connector Carbon Steel
Yoke Carbon Steel
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Knife Edge Gate Valves at Microfinish are designed to MSS SP81 and consists of two types; Series 50SF Flanged Water type and Series 50SW Lugged Water type. They are of Round port single piece construction, Soft/ Metal seated 150 pressure class and sizes ranging from 2 to 30 inches. These valves are generally used in slag flow line, slurry flow lines, ash flow lines, pulp flow lines, raw meal flow line and similar applications. Valve operation options include manual gear, pneumatic and electric actuation.