ZDRW type electric regulating butterfly valve is composed of electric actuator and butterfly valve body parts. It has the characteristics of simple structure, compact, convenient operation, light weight, small flow resistance, large rated flow coefficient, easy to manufacture large diameter and low price. It is especially suitable for large diameter, large flow and low pressure, and can also be used for medium adjustment of thick and turbid slurry and suspended particulate matter.
Connection method of the electric actuator and butterfly valve: DN is no more than 250 in direct connection mode, and DN > 250 caliber can be installed in horizontal, horizontal, or separate mode.
specifications
Main technical parameters
A. the valve body
Shape: flat cast valve body
Nominal diameter: DN50 ~ 1200mm
Nominal pressure: pn0.6mpa (products of PN1.0 and 1.6mpa can also be provided according to user requirements)
Connection type: non-flange clamp, FF, RF (DN50 ~ 500);
Flange connection FF, RF (DN600 ~ 1200)
Flange standard JB/T79.1 ~ 2-94
Internal assembly
Valve plate type: flat cast
Flow characteristics: approximately equal percentage
Material and working temperature
Executive mechanism
Type: DKJ series electric actuator; 3610R series electric actuator; SHQ series electric actuator
NUCOM series electric actuator; PSQ series electric actuator
Input signal: DKJ Ⅱ actuator type 0 ~ 10 ma. DC (200 Ω input resistance); Ⅲ type 4 ~ 20 ma. DC (250 Ω input resistance)
3610R, SHQ, NUCOM, PSQ executive organization 4-20ma.dc
Power supply voltage: 220v. AC/50HZ
Manual operation: DKJ, SHQ, PSQ: handwheel
3610SR, NUCOM: portable handle
Note: detailed information of actuator is shown in the pamphlet
Ambient temperature: - 20 ~ + 60 ℃
Type of valve action: electric - closed and electric - open
Main technical performance
Leakage: less than 2 x 10-2 x rated capacity
Basic error: DKJ actuator is + / -2.5%; The actuator is + / - 1%
The operating agencies of SHQ and NUCOM were + / - 1.5%. The PSQ executive mechanism is + / - 1%
Note: standard V type ptfe packing is used
Back difference: DKJ, 3610R actuator is 1%; The executive agencies of SHQ and NUCOM are 1.5%. The PSQ actuator is 1%
· dead zone: 0.5%
· adjustable range: 20:1
Rated stroke: 70 ° (according to user requirements can provide 90 ° trip rating products)
Rated flow coefficient Kv value
Adjust actuator configuration to allow pressure differential pressure adjustable P
Note: 1, the delta P determine on the basis of: 70 ° valve opening; 2. NUCOM electric actuator is adjustable, and the two types are UNIC
External dimensions, weight
Shape and size (1)
· appearance and size (2)
· appearance and size (3)
