Bellows Seal Cage Type Control Valve
Bellows Seal Cage Type Control Valve
Brief Description

Type 5626W bellows sleeve control valve is a pressure balanced valve. It has a high flow and wide adjustable range. Upper bonnet adopts bellows pipe and packing as a double seal to eliminate the leakage of medium, it is very safe and reliable. Stem and up

Details

Valve body:

Type: straight cage ball type

Nominal size: 40 - 200mm

Working pressure: ANSI150, 300, 600； PN1.6, 4.0, 6.4MPa

End connection: Flange, BW, SW (applicative for DN15-DN50)

Material: WCB，WC6，WC9，C5，LCB，LC2，LC3，CF8，CF8Metc.

Valve bonnet : Standard type (P)  : -17 ~ +230℃

                        Extended I type（E1）：-45 ~17℃、+230~566℃
                        Extended II type（E2）： -100~45℃

        Extended III type (E3）： -196~100℃

        Cooling fin type：+230~600℃

Packing gland : Bolted compressed-type

Packing : V-type PFTE, PTFE asbestos and flexible graphite


Trim

Valve disc : Pressure balanced cage type disc

Adjustable feature : equal percentage, line type

Trim material:304,304 overlay STL, 316,316 overlay STL, 316L, etc.
Bellows material : 304L, 316L, Hastelloy-C etc.



Actuator

  1. Pneumatic-actuator

Type 6100 Pneumatic Diaphragm Actuators

Membrane material: Ethylene propylene rubber filled with nylon

Spring range: 20-100KPa、40-200KPa、80-240KPa

Air supply pressure: 140KPa、160KPa、280KPa、400KPa

Air supply connection:Rc1/4、Rc3/8

Environment Temp: -30-+70℃

Acting type: air open ( reverse acting), air close (positive acting)

 

Note: (1) The type of large diameter or high pressure difference control valve can also be equipped with 6400 series straight stroke piston actuator.
(2) if the environment temperature below 30 ℃, please contact with Cepai engineers.
 


（2）Electric actuators

Type: 6200 series electric actuators

Voltage: 220V、380V

Environment Temp: -30-+70℃

Control Signal: 4-20mADC(supply 4-20mA signal feedback as per customer requirement)

Performance
Leakage rate: Metal seat：accordance with ANSI B16.104IV level which is less than 0.01% of rating CV.    

           Nonmetal seat: accordance with ANSI B16.104IV level which is less than 10-7 of rating CV.

Adjustable: 50:1

Variation:±1%( with positioner) ±3% (no positioner)

Linear: ±2%( with positioner) ±5% (no positioner)

Accessories ( As per requirements)

Positioner, Filter Regulator, hand wheel, limit switch, solenoid valve, valve position transmitter, pneumatic valve, speed increaser, lock up valve etc.