Van bướm BWP-SE DN65

TYPE BWP SE (nc-na)
WAFER – cast iron body PN 10 / 16
TYPE BLP SE (nc-na)
LUG – cast iron body PN 16
Simple effect – air opens (Norm. closed)
Simple effect – air closes (Norm. open)
DESCRIPTION
BWP SE – BLP SE pneumatic valves are with wafer and lug
butterfly body.
The AISI 316 disc guarantees a perfect tightness in class VI° EPDM
(BUNA or PTFE on request) packing ring.
Compact construction assembled with a pneumatic piston actuator
simple effect rotation 90 ° normally open or closed without air.
The pneumatic actuator is powered by the following signals:
 4 … 10 bar for ON – OFF valves
 3-15 psi with pneumatic pilot positioner on modulating valves
 4-20 mA with electropneumaticpilot positioner on
modulating valves
NOMINAL DIAMETERS : from DN 40 to DN 300    PNEUMATIC ACTUATOR CHARACTERISTICS:
BODY CONNECTIONS : Flanged PN 10 / 16 WAFER
FlangedPN 16 LUG
LIMIT WORKING CONDITIONS :
 Max inlet pressure and temperature : 16 bar 130 °C
Actuator  : simple effect piston
rotation 90 °
ISO 5211 – DIN 3337
NAMUR VDI / VDE 3845
BODY MATERIALS :    Input signal  : from 4 to 10 bar
depending on model
 Cast Iron EN GJL-250 PN 10 / 16     Max air applicable  : 10 bar
Ambient temperature
Actuator box
 Right and left piston
Yoke
Pneumatic connections
: -20 ... +70 °C
: Alluminium ASTM B210
: die cast alluminium UNI 5076
: galvanized carbon steel
: ISO 7 Rp – ¼”
ON REQUEST :
SG Iron EN-JIS400-15 (on request)
 Carbon steel ASTM A316 WCB (on request)
 Stainless streel 1.4408 (on request)
Disc AISI 316
Stem AISI 416
Elastomer EPDM (on request BUNA o PTFE) 
Pneumatic Pilot Positioner 3-15 psi … 3-9 psi … 9-15 psi
BODY TYPE : Full bore     Electro-pneumatic pilot positioner 4-20mA…4-12 mA…12-20 mA
 Proximity limit switches
PLUG : disc    Feedback signal on positioners 4-20 mA
 Rotary switches with position monitoring by “Dome”
STEM PACKING :    Solenoid valve
EPDM ≤130 °C    Air filter regulator
Maximum perm