Rself-operated temperature control valve (cooling type) is composed of the control valve and a temperature controller provided with fixed point control. It is suitable for controlling temperature of non-corrosive liquids, gases and steams
in various cooling systems. When the temperature of the controlled medium rises, the control valve is opened.
The main features are as follows:
1.It has the pressure balancing function with high sensitivity.
2.Low noise, reliable performance, free of maintenance
3.The standard modular design is adopted.
4.The flow is adjusted according to the standard figure by the throttle valve, which is convenient and fast.
5.It adopts the imported fixed point controller, which has the over temperature protection function with reliable quality.
6.Various combined controls can be carried out through the assemblies.
Technical parameters and performances
Body
DN | DN15,20,25,32,40,50,65,80,100,125,150,200,250mm | |
PN | PN1.6,4 .0MPa | |
Flange standard | ANSI,JIS,DIN GB JB(special standards can be offered according to user requirements) | |
Body material | Cast iron (HT200), cast steel (ZG230-450), cast stainless steel (ZG1Cr18Ni9Ti, ZG1Cr18Ni12Mo2T i) | |
Plug material | Hard seal | Stainless steel (1Cr18Ni9Ti, 1Cr18Ni12Mo2Ti) |
Soft seal | Stainless steel embedded with rubber ring | |
Pressure balancing | Stainless steel bellows (DN15~125), balanced diaphragm (DN150~250) | |
D05 Actuator
Effective area (cm2) | 250 | 630 |
Differential pressure of throttle | 0.02;0.05 | |
Allowable maximum differential pressure between the upper and lower diaphragm chambers | 0.4 | 0.15 |
Material | galvanized steel sheet; diaphragm:EPDM or FKM with fiber | |
Control pipeline connection | Copper pipe o r steel pipe Φ10X 1(mm) ferrule connect ion: R1/4" | |
Actuator
Effective area (cm2) | 250 |
Pressure setting range | 0.01~0.12 0.08~0.25 0.2~0.5 0.45~1 0.6~2.0 |
Minimum differential pressure that ensures normal work of the pressure valve | DN15~125is 0.08 DN150~250is 0.1 |
Allowable maximum differential pressure between the upper and lower diaphragm chambers | 0.4 |
Material | galvanized steel sheet; diaphragm:EPDM or FKM with fiber |
Control pipeline connection | Copper pipe o r steel pipe Φ10X 1(mm) ferrule connect ion: R1/4" |
Performance
Set value error | 30 L01Y | 30T01Y 30T0 1R | |||
±5℃ | ±1.5℃ | ||||
Allowable leakage (under stipulated testing conditions) | Soft seal | 4×0.01% valve rated capacity | |||
Hard seal | DN15~50 | DN65-DN125 | DN150~250 | ||
10 bubbles/min | 20 bubbles/min | 40 bubbles/min | |||
Allowable working temperature
DN | 15~125mm | 150~250mm | |
seal type | Hard seal | ≤150℃ | ≤140℃ |
Cooling tank≤200℃ | Cooling tank and extension ≤200℃ | ||
Soft seal | ≤150℃ | ||
Rated flow coefficient, noise measuring coefficient, allowable differential pressure
DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | |
Rated flow coefficient | 4 | 6.3 | 8 | 16 | 20 | 32 | 50 | 80 | 125 | 160 | 280 | |
Throttle pressure differential | 0.02MPa | 0.1-2 | 0.2-3 | 0.2-4 | 0.4-7 | 0.6- 11 | 0.8- 16 | 3- 28 | 4- 40 | 6- 63 | 8- 80 | 12- 125 |
0.05MPa | 0.2-3 | 0.3- 4.5 | 0.3-6 | 0.5- 10 | 0.8- 16 | 1.1- 24 | 4 - 40 | 6-58 | 9- 90 | 12- 120 | 18- 180 | |
Noise measuring coefficient Z value | 0.6 | 0.6 | 0.6 | 0.55 | 0.55 | 0.5 | 0.5 | 0.45 | 0.4 | 0.35 | 0.3 | |
Allowable differential | PN16 | 1.6 | 1.5 | 1.2 | ||||||||
pressure (Mpa) | PN40 | 2 | ||||||||||
Working principle
According to different combinations, refer to the working principle of the self-operated flow control valve and self-operated temperature control valve (cooling type/heating type). (Working according to the priority action principle)
