Series SAE Butterfly Valves are designed to meet the
demanding needs of the fluid control industry. Unique fea-
tures include a Buna-N O-ring flange face seal complying
with S.A.E. J518 dimensional requirements. This design
greatly reduces hydraulic fluid connection leaks often asso-
ciated with tapered thread and gasket type seals. The com-
pact envelope dimensions reduce space limitations. The
unit allows for blind adjustments, incorporating open/close
detent position locks which can be infinitely positioned to
achieve a required flow rate.
INSTALLATION
Series SAE Butterfly Valves are designed for use with mat-
ing S.A.E fluid-power mounting flanges. Before installing,
apply a small amount of grease to the flange O-ring to lubri-
cate and aid in positioning during the installation. Inspect all
flange faces for foreign material and remove if necessary.
With the valve in the closed position, carefully insert unit
between flanges, making sure O-ring remains in position.
Hand-tighten flange bolts evenly. Slowly open and close the
valve to confirm proper operation of valve disc. With the
valve in full-open position, cross-tighten the flange bolts to
proper torque. The valve is now ready for service.
Series SAE Butterfly Valves
Specifications - Installation & Operating Instructions
Bulletin F-42-IBSAE
©Copyright 2010 Dwyer Instruments, Inc. Printed in U.S.A. 2/10 FR# V1-440860-00 Rev. 3
STANDARD MODELS
W.E. ANDERSON DIV., DWYER INSTRUMENTS, INC.
P.O. BOX 358 • MICHIGAN CITY, INDIANA 46361 U.S.A.
Phone: 219/879-8000 www.dwyer-inst.com
Fax: 219/872-9057 e-mail: info@dwyer-inst.com
LETTER
A
B
C
D
E
F
G
H
J
K
L
I.D. x WD
2
(50.80)
2
(50.80)
3-1/16
(77.79)
1-11/16
(42.86)
1/2
(12.70)
1-3/4
(44.45)
2-13/16
(71.44)
5-1/8
(130.18)
13/16
(20.64)
5
(127.00)
2-1/2
(63.50)
2
(50.80)
3-1/2
(88.90)
2
(50.80)
1/2
(12.70)
2-1/16
(52.39)
3-1/8
(79.38)
5-1/8
(130.18)
13/16
(20.64)
5
(127.00)
3
(76.20)
2-1/2
(63.50)
4-3/16
(106.36)
2-7/16
(61.91)
5/8
(15.88)
2-5/16
(58.74)
3-3/8
(85.73)
5-1/8
(130.18)
1-1/16
(26.99)
5
(127.00)
2″
2-1/2″
3″
Valve Size
Dimensions in Inches (mm)
4
(101.60)
3-1/4
(82.55)
5-1/8
(103.18)
3-1/16
(77.79)
5/8
(15.88)
2-3/4
(69.85)
4
(101.60)
5-5/8
(142.88)
1-1/4
(31.75)
5
(127.00)
5
(127.00)
4
(101.60)
6
(152.40)
3-5/8
(92.08)
5/8
(15.88)
3-5/16
(84.14)
4-3/8
(111.13)
6
(152.40)
1-1/2
(38.10)
5
(127.00)
4″
5″
1/8
(3.18)
1/8
(3.18)
1/8
(3.18)
1/8
(3.18)
1/8
(3.18)
H
F
J
B
L- O-RING
I.D. x WIDTH
K
D
E- 4 PLACES
C
G
SPECIFICATIONS
Line Size: 2˝, 2-1/2˝, 3˝, 4˝, 5˝.
End Connection: O-ring flange face seal (S.A.E. J518).
Pressure Limits:
Body Shell: 500 psi (34.5 bar).
Shut-Off: 25 psi bubble tight (1.72 bar).
Wetted Materials:
Body and Disc: Cast Iron.
O-Ring Seals: Buna-N, Fluoroelastomer (optional).
Stem: Steel.
Temperature Limits: 180°F (82.2°C) with Buna-N; 300°F (149°C)
with Fluoroelastomer.
Model No.
SAE-20
SAE-25
SAE-30
SAE-40
SAE-50
S.A.E. Flange Size
2˝
2-1/2˝
3˝
4˝
5˝
2-1/4
(57.15)
2-3/4
(69.85)
3-3/8
(85.73)
4-3/8
(111.13)
5-3/8
(136.53)
Fluoroelastomer O-ring seals. Add suffix, VIT (SAE-30-VIT).
Locking handle. Add suffix, LHR (SAE-30-LHR).
OPTIONS
F-42-IBSAE:Bulletin F-42 2/4/10 8:12 AM Page 1
(1 pages)
(24 pages)
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