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寶德2702氣動(dòng)調(diào)節(jié)閥 burkert氣動(dòng)調(diào)節(jié)閥2702 burkert 2702 寶德氣動(dòng)調(diào)節(jié)閥2702 2702調(diào)節(jié)閥
寶德2702氣動(dòng)調(diào)節(jié)閥技術(shù)參數(shù):
Material
Body Actuator:Cast stainless steel (conform to 1.4409) PA polyamide (PPS on request)
Seat sealing :St.st./St.st. (stainless steel/stainless steel),
PTFE/St.st.: (PTFE/stainless steel)
Seat leakage: according to IEC 534-4/EN 1349
Shut-off: class IV for St.st./St.st.
Shut-off: class VI for PTFE/St.st.
Process media:(vacuum version on request)For neutral gases, water, alcohols, oils, fuels, hydraulic liquids, salt solutions, lyes, organic solvents, steam
(10 bar(abs)/+180°C)
Viscosity: max. 600 mm2/s
Spindle packing: PTFE-Seal (with silicone grease) with spring compensation
Nominal pressure :PN 25 (body)
Temperatures:medium Ambient
-10 °C to +180 °C1)(max. +130 °C for PTFE/St.st. sealing recommended)
-10 °C to +60 °C1)
Control medium :Instrument air
Control pressure :5.5 to 7 bar
Pilot air ports: G 1/4 stainless steel (St. st.)
Flow direction: Below seat
Flow characteristics :Modifi ed equal percentage
Control ratio (Kvs/KvO) More than 50:1