Specification :

Nominal diameter: 20— 300mm
Nominal pressure: 1.6 Mpa, 4 Mpa, 6.4Mpa
Valve body material: cast steel,
cast stainless steel
Connection way:
flange connection according to JB79-59
Operating temperature range:
normal type: -20 — + 230
heat dissipation type: -60 — + 450
Function form: electric on-off
Flow characteristic:
equal percentage
linear
Leakage:
single-seat valve 0.01% × rated Kv
double-seat valve 0.5% × rated Kv
sleeve valve 0.5% × rated Kv
Power supply: 220V; 380V
or according to the customer’ s demands
Input signal: 4-20mA or switching value,
Feedback : 4-20mA
Control accuracy: 1% , 2.5%