Pneumatic Butterfly Valves Series 520 pages
$ SF&2£££ Butterfly Valves DATA SHEET
BF
Butterfly Valve
Description
The BF Series 52 pneumatic low pressure spring return
assemblies are available in 2-way and 3-way configurations
2M4". Two way assemblies are complete with full lugged
bodies, 304 stainless disc, EPDM seat, and mounted with a
mounting kit to a pneumatic actuator. Three way assemblies
are complete with (2) lugged valves mounted on a cast iron
tee with linkage kit to a pneumatic actuator for use in either
mixing or diverting applications. These two and three way
assemblies are suitable for indoor or outdoor applications.
Operation
Valve assemblies with pneumatic low pressure actuators
are energized with 20-30 psi air. On loss of air pressure
actuator spring returns to the default position. Each actuator
is controlled by either on/off or modulating commands.
Factory mounted, tested, and calibrated, these assemblies
provide accurate and automatic valve positioning for
temperature control.
Actuator Performance
• Housing is fabricated from rugged aluminum, for
resistance to small amounts of falling dirt and water
• Supply pressure minimum 20 psi, maximum 30 psi
•4" Stroke for smooth operation and precise positioning
• Stem 416 stainless steel
• Replaceable diaphragm made of ozone resistant rubber
♦ Steel spring with bronze bearing
•4" Stroke for smooth operation and precise positioning
• Stem 416 stainless steel
• Replaceable diaphragm made of ozone resistant rubber
• Steel spring with bronze bearing
• Nominal spring range 8-13psi
• Operating temperature -20°Fto 160°F(-29° to +71 °C)
•Air connection 1/8" NPT female
• Loss of air, spring returns to predetermined set point
•Available with optional positioning relay and limit switch
with feedback
•2 year warranty
Assembly Configurations
Series 52
Pneumatic - Spring Return 20-30 psi
Valve Performance
• 2-way and 3-way assemblies 2" through 14"
•Valves comply with MSS SP-67 specifications,
for industry standard face to face requirements
• Lug bodies compatible with ANSI 125/150# flanges
• Extended 2" neck for insulation clearance
• 304 stainless steel disc for corrosion resistance
•Phenolic backed cartridge style seat which is non-
• Lug bodies compatible with ANSI 125/150# flanges
• Extended 2" neck for insulation clearance
• 304 stainless steel disc for corrosion resistance
• Phenolic backed cartridge style seat which is non-
collapsible, stretch resistant and blow out proof
• Maximum seat temperature EPDM -30°F to +275°F
• Maximum valve rating is 200 psi
• Bi-directional, bubble tight close off
•Maximum steam rating 15 psi (EPDM only)
• Valve seat does not require gaskets
•Valve rated for dead end service
Standard Valve Construction
cujsH) Reducing Tees Available RO.A.
Item | Description | Materials |
1 | BODY | DUCTILE IRON |
2 | DISC | 304 SS |
3 | SEAT | EPDM |
4 | SHAFT | 416 SS |
5 | TAPER PINS | 316SS |
6 | KEY | 416 SS |
7 | O-RING | BUNA-N |
8 | BUSHING | PTFE |
9 | BUSHING | PTFE |
10 | BUSHING | PTFE |
1C
Spartan Peripheral Devices telephone: (450) 424-6067 • fax: (450) 424-6071 • email: info@spartan-pd.com • website: www.spartan-pd.com
Butterfly Valves BF Series 52
21 March 201
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