購(gòu)買必點(diǎn)burkert 2012氣動(dòng)操作直座閥 The externally piloted globe valve consists of a pneumatically operated piston actuator and a 2/2-way valve body. The actuator is made of PA or, for special operating conditions, PPS. 購(gòu)買必點(diǎn)burkert 2012氣動(dòng)操作直座閥 The reliable self-adjusting packing gland provides high sealing integrity.  These maintenancefree and robust valves can be retro-fi tted with a comprehensive range of accessories for position indication, stroke limitation or manual override.

參數(shù)：

Orifi ce DN 10-100
Body material Cast stainless steel 316L
burkert 2012 Actuator material PA, PPS
Seal material PTFE (NBR, FKM and EPDM on request)
burkert 2012 Medium Water, alcohol, oils, fuel, salt solution, alkali solutions,
organic solvents, steam

Viscosity Max. 600 mm2/s
burkert 2012 Packing gland (with silicone grease) PTFE
Nominal pressure PN 25 (body)
burkert 2012 Medium temperature 2) -10 to +180 °C with PTFE seal
Ambient temperature
burkert 2012 PA actuator 1)
 Actuator sizes up to Ø 125
 Actuator sizes Ø 175-225
PPS actuator

 Actuator sizes Ø 40-80
burkert 2012 Actuator sizes Ø 100-125
-10 to +60 °C
-10 to +50 °C
+5 to +140 °C
+5 to +90 °C
burkert 2012 Installation As required, preferably with actuator in upright position
Control medium Neutral gases, air