Flow Systems, Inc. - Valves
LINED CHECK VALVE -TYPE 'A' • LINED CHECK VALVE -TYPE 'B' • LINED CHECK VALVE DIMENSIONS • LINED SIGHT GLASS

Innovative, Vertical and Horizontal type Check Valves for Slurry, Solvent, Pure Chemicals, Highly Corrosive Acids etc.
LINED CHECK VALVE DIMENSIONS

ce="Arial, Helvetica, sans-serif">CLASS
BRITISH UNITS
ALL DIMENSIONS IN INCHES
SIZE
F-F
FØ
F.T.
RFØ
RFT
P.C.D.
NOH
SOH
C-H
CLASS
CLASS
CLASS
 tica, sans-serif">
CLASS
CLASS
CLASS
150# 300# 150# 300# 150# 300# 150# 300# 150# 300# 150# 300# 150# 300#
1
5.00
6.50
4.25
4.88
0.63
0.69
2.00
.12
3.13
3.50
4
4
0.63
0.75
3.25
3.25
1½
6.50
7.50
5.00
6.13
0.75
0.81
2.88
0.12
3.88
4.50
4
4
0.63
0.88
3.75
3.75
2
7.00
8.50
6.00
6.50
0.82
0.88
3.63
0.12
4.75
5.00
4
8
0.75
0.75
4.50
4.50
3
8.00
11.13
7.50
8.25
0.97
1.13
4.75
0.12
6.00
6.63
4
8
0.75
0.88
5.00
5.00
4
9.00
12.00
9.00
10.00
1.16
1.25
6.19
0.12
7.50
7.88
8
8
0.75
0.88
6.10
6.10
METRIC UNITS
ALL DIMENSIONS IN MILLIMETER
SIZE
F-F
FØ
F.T.
RFØ
RFT
P.C.D.
NOH
SOH
C-H
CLASS
CLASS
CLASS
CLASS
CLASS
CLASS
CLASS
150# 300# 150# 300# 150# 300# 150# 300# 150# 300# 150# 300# 150# 300#
25
127
165
108
124
16
17.5
51
3
79
89
4
4
16
19
82
82
40
165
190
127
155
19
20.5
73
3
98
114
4
4
16
22
95
95
50
178
215
152
165
21
22.3
92
3
120
127
4
8
19
19
114
114
80
203
282
190
209
24
28.7
120
3
152
168
4
8
19
22
127
127
100
228
305
229
254
29
31.7
157
3
190
200
8
8
19
22
155
155
LEGEND
F-F FACE TO FACE RFT RAISED FACE THICKNESS
FØ FLANGE DIAMETER P.C.D. PITCH CIRCLE DIAMETER
F-T FLANGE THICKNESS NOH NUMBER OF HOLES
RFØ RAISED FACE DIAMETER SOH SIZE OF HOLE
SIZE
ALLOWABLE LEAKAGE RATE @ 60 PSI
APPROXIMATE PRESSURE (PSI) TO SEAT (P)
HORIZ. PIPE
VERT. PIPE
1"
30 BUBBLES / MIN
0
LESS THAN 1 PSI
1½"
30 BUBBLES / MIN
0
2"
60 BUBBLES / MIN
0
4"
60 BUBBLES / MIN
0
CV FACTORS
SIZE
1"
1½"
2"
3"
4"
26
55
88
220
510

 
LINED CHECK VALVE -TYPE 'A' • LINED CHECK VALVE -TYPE 'B' • LINED CHECK VALVE DIMENSIONS • LINED SIGHT GLASS
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FLOW SYSTEMS
13650 T.I. Boulevard, Suite 106 • Dallas, TX 75243 • U.S.A. • Phone: 972-644-4395, 800-956-8447 • Fax: 972-644-4616

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