CV3000-HLS small bore signle seat control valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
structural features and applied range
CV3000 –HLS small bore signle seat regulator structure is compact, with "S" streamline channel, reducing the pressure drop, large flow, wide adjustable scope, high accuracy of flow characteristic, it conforms with IEC543-1-1976 standard. The leakage of regulator conforms to ANSI B16.104 standard. Regulator euipped with multi-spring diaphragm actuator, its structure is compact, and output is large.
The product conforms to the GB/T4213-92, VDS4006-92 standard.
Technical parameters and performance indicators
Body
body type straight signle seat cast spherical valve
nominal diameter 20、25mm
nominal pressure
ANSI: 125、150、300、600Lb
JIS: 10、16、20、30、40K
PN: 1.6、4.0、6.4MPa
connection
flange connection：FF、RF、RJ、LG
flange standard：JIS B2201-1984、ANSI B16.5-1981、JB/79-59
welding connection：SW
body material
cast steel（ZG230-450）cast stainless steel（ZG1Cr18Ni9Ti、ZG1Cr18Ni12Mo2Ti、ZG316L） Ti, etc
upper bonnet
normal temperature（P）：-17～+230℃
extend I type（EⅠ）：-45～-17℃ +230～+566℃
extend Ⅱ type（EⅡ）：-100～-45℃
extend Ⅲtype（EⅢ）：-196～-100℃
Note: working temperature can not exceed the various materials allowed range
gland type: bolt pressure type
Sealing packing V type PTFE packing, containing PTFE leached asbestos packing, asbestos weave packing, graphite packing
Internal components
valve core type single sleeve plunger core
Material SS（1Cr18Ni9Ti、1Cr18Ni12Mo2Ti、17-4PH、9Cr18、316L）SS bead weld stellite, Ti and anti-corrsive alloy, etc
actuator
type ZHA(B) multi-spring diaphram actuator
diaphragm material: NBR with nylon
spring scope 20～100、80～240KPa
air supply pressure: 140～400kPa
air source interface Rc 1/4
environmental temperature-30～+70℃
valve acting type pneumatic-close or pneumatic-open
Annex locator, air pressure filter, position valve, stroke switches, the transmitter, handwheel mechanism, etc
performance
leakage
metal seat：less than 0.01% of rated volume, in accordance with ANSI B16.104-1976 ClassⅣ
soft seat：less than 10-7 of rated volume, in accordance with ANSI B16.104-1976 ClassⅥ
return difference
with positioner: less than 1% of full stroke
without positioner: less than 3% of full stroke
intrinsic error
with positioner: less than ±1% of full stroke
without positioner: less than ±5% of full stroke
Note: using normal V type PTFE packing
adjustable scope 50：1（0.25≤Cv≤14）or 30：1（Cv≤0.16）
