Brochure

Thermoplastic Valves Product Guide & Engineering Specifictions
In-Line Adjustable Spring Check Valves
Made in the U.S.A. Suitable for Oil-Free air handling to 25 psi, not for distribution of compressed air or gas Page 816
Due to Material Cost Variations, Prices Sub
j
ect to Chan
g
e. Check On-line Catalo
g@
www.spearsmf
g
.com
SIZE INLET X OUTLET A ± 1/16 B ± 1/16 C ± 1/16 D ± 1/16 E ± 1/16 FIG.
1/2 FIPT X MIPT 2-5/8 1-3/16 1-3/16 2-3/4 3/4 I
3/4 FIPT X MIPT 2-5/8 1-3/8 1-3/16 2-15/16 3/4 I
1 FIPT X MIPT 3-3/16 1-11/16 1-7/16 3-7/16 7/8 I
1/2 x 3/4 FIPT X MIPT 2-5/8 1-3/8 1-3/16 2-15/16 3/4 I
1/2 MIPT X FIPT 2-7/8 1-3/16 1-7/16 3-1/8 3/4 II
3/4 FIPT X FIPT 2-5/8 1-3/8 1-3/16 2-15/16 3/4 III
Dimensions
Temperature Pressure Rating
System Operating
Temperature °F (°C)
100
( 38 )
110
( 43 )
120
( 49 )
130
( 54 )
140
( 60 )
150
( 66 )
160
( 71 )
170
( 77 )
180
( 82 )
190
( 88 )
200
( 93 )
210
( 99 )
Valve
Pressure
Rating
psi (MPa)
1/2"-1" PVC
200
(1.38)
135
(.93)
120
(.83)
75
(.52)
50
(.34)
-0-
(-0-)
-0-
(-0-)
-0-
(-0-)
-0-
(-0-)
-0-
(-0-)
-0-
(-0-)
-0-
(-0-)
Female Inlet x
Female Outlet Option
FIG. III
C
E
B
A
D
Male Inlet x
Female Outlet Option
FIG. II
C
E
B
A
D
Standard Unit Female Inlet x
Male Outlet
FIG. I
C
E
B
A
D
FLOW
Replacement Parts
No. Component Qty. Material
1 Screw 1 Stainless Steel
2 Nut 1 Stainless Steel
3 Belleville Washer 1 Stainless Steel
4 Spring 1 Stainless Steel
5 Seat 1 EPDM
6 Washer - A 1 Stainless Steel
7 O-ring 1 EPDM
8 Washer - B 1 Stainless Steel
9 Body 1 PVC
5 4 3 2 1 6 7 8 9