Specifications | Butterfly Valves
STANDARD VALVES
MATERIALS OF CONSTRUCTION
(See also Bulletins 1122A [Manual], and 1154A [Resilient Seat Wafer]) 1126A Motorized
Component
Material
Body Shaft
6061-T6 Aluminum 303 Stainless Steel
Disc
Carbon Steel
Standard butterfly valves have female pipe threads in ¾" through 6" pipe sizes. Motorized valves can be ordered with bracket, motor arm, and linkage for standard control motor or actuator. 1122A manual valves have a locking handle and are available in ¾" to 6" sizes. 1126A Valves have a swing-through disc. All standard valves can be used on natural gas. Standard 1122A , and 1126A Valves are suitable for air heated to 200°F.
Shaft Seal
FKM
INSTALLATION
— Use appropriate pipe thread sealant on piping end connections. — Do not over tighten body onto piping (see below diagram). — Can be mounted in any orientation, except horizontal with
See Bulletin 1122A.
motor underneath the valve body. — Allow for flow in either direction. — No regular maintenance required.
SPECIFICATIONS
When installing North American 1126A equipment please follow the diagram below.
Medium
Air, Natural Gas, Propane
Connection Sizes Rotation Angle
NPT threaded ISO 7-1 threaded (M versions)
0-90° Max Temperature 200°F (93°C)
YES
NO
700°F (371°C) (H versions)
Minimum Temp Max Pressure
5°F (-15°C)
25 psi (1.7 bar) (-0 to -4 sizes) 15 psi (1.0 bar) (-5 to -8 sizes)
AIR TEMPERATURE CORRECTION FACTORS FOR ALL VALVES Multiply scfh in table by air temperature factor to get scfh air at that temperature.
F
factor
F
factor
60
1.0
300 400 500 600 700
0.83 0.78 0.74 0.70 0.67
100 150 200 250
0.96 0.92 0.89 0.86
Bulletin 1126A Page 3
Made with FlippingBook flipbook maker