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Shanghai Tong Lei valve ZZWP-16C self operated temperature control valve self operated temperature control valve DN152025

discount 70% in 2018-09-26 to 2018-09-28
price: USD$ 1750.00
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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ZZW self operated temperature control valve is composed of two parts: temperature sensor and control valve. It is a kind of energy-saving product which needs no external energy and adjusts automatically by the temperature change of the controlled medium. The product is suitable for the automatic control of temperature in various heat exchangers with various gases, steam, hot water, oil and so on. It has the advantages of wide temperature setting range, easy adjustment, continuous temperature setting, over temperature protection, convenient temperature setting, etc.. Widely used in urban heating, heating systems and power, oil, metallurgy, pharmaceutical, boiler and other industrial sectors.
Product model
Single seat heating regulatorZZWP-16~40BSingle seat cooling regulatorZZWP-16~40B
Two seat heating regulatorZZWN-16~40BTwo seat cooling regulatorZZWN-16~40B
Sleeve heating control valveZZWM-16~40BSleeve cooling control valveZZWM-16~40B
Spool structure type
Main technical parameters
Main technical parameters of 1. control valve
Nominal diameter DN (mm)20253240506580100125150
Rated flow coefficient KvSingle seat and sleeve71120304875120190300480
Two seater 1222335383132209330528
Allowable pressure difference (MPa)
Nominal pressure (MPa) 
Inherent flow characteristicsQuick opening
Working temperature centigrade≤300
Suitable mediumGas, steam, low viscosity liquids
Flange size and typePN10, 16, GB9113-88 convex PN40 concave
Or according to the user's requirements, the selection of other standard types of flanges (such as: ANSI, JIS, DIN and other standards)
Structural lengthAccording to GB12221-89 standard
1. Main technical parameters of control valve
Sensor typeT01T02
Temperature setting range centigrade0~70 50~120 100~170 150~220
Temperature transfer coefficient (mm/ C)0.8
Time response constant s120
Over temperature protection temperatureSetting the upper limit of temperature range +50
Installation jointG1"
Capillary length m3 5 8
Sensor diameter (mm)Temperature package: 25 sheath: 28
Warm pack materialbrass
Main performance indexes
Control accuracy%±15
Allowable discharge
Hard seal (L/H)Single seat (IV): less than 10-4Rated valve capacity: two seater, sleeve (grade II), less than 5 * 10-3Rated capacity of X valve
Soft seal
Fitting accessories
Heat sink, manual device, etc..
Example of application
Outline size and weight
Nominal diameter (DN)20253240506580100125150
d25 (sheath diameter 28)
Weight (Kg)8101315183035607585
The relationship between allowable medium and temperature
body materialnominal
Medium temperature and temperature
Maximum operating pressure (MPa)
Main parts of valve and recommended temperature range
Part nameMaterial Sciencetemperature range
Valve body and valve coverHT200-20~200℃
Valve core and valve seat1Cr18Ni9Ti-250~550℃
(reinforced) PTFE-20~200℃
Welding division Stellite alloys-250~550℃
Pressure balance elementcorrugated pipe18Ni12Mo2Ti-160~300℃
Ordering instructions
When ordering, please specify:
1, product type, name
2. Nominal pressure and nominal diameter
3, import and export pressure
4. Pressure setting value
5. Reference pressure (differential pressure valve)
6. The range of pressure regulation
7, medium name, density, temperature
8, medium maximum, normal, minimum flow
9. Material of valve body and valve internals
10, accessories and other