YZW Type Self Operated Temperature Regulating ValveDetailed product description：

The YZW type self operated temperature regulating valve consists of a temperature sensor and a control valve. It is an energy-saving product that does not require external energy and uses the temperature changes of the controlled medium to automatically regulate. The product is suitable for automatic temperature control in various heat exchangers using various gases, steam, hot water, oil, and other media. It has the advantages of wide temperature setting range, easy adjustment, continuous temperature setting, over temperature and over trip protection, and convenient temperature setting. Widely used in urban heating, heating systems, and industrial sectors such as electricity, petroleum, metallurgy, pharmaceuticals, boilers, etc.  

2、 Application range of YZW type self operated temperature regulating valve:
Heating and air conditioning, domestic hot water, petrochemical, power, electromechanical, textile, rubber and food industries.

3、 Usage characteristics of YZW type self operated temperature regulating valve:
1. Small size, light weight, and easy installation;
2. Accurate, reliable, and long-lasting;
3. Maintenance free work;
4. Easy to adjust settings;
5. Passive operation (no power supply, normal operation of gas source);
6. No need for expensive debugging costs;
7. The valve body seal adopts a V-shaped high-temperature sealing component to prevent the possibility of the valve stem being too tight or leaking.

4、 Main technical parameters of YZW type self operated temperature regulating valve:

Nominal diameter DN (mm)		twenty	twenty-five	thirty-two	forty	fifty	sixty-five	eighty	one hundred	one hundred and twenty-five	one hundred and fifty
Rated flow coefficient Kv	Single seat, sleeve	seven	eleven	twenty	thirty	forty-eight	seventy-five	one hundred and twenty	one hundred and ninety	three hundred	four hundred and eighty
	Double seat		twelve	twenty-two	thirty-three	fifty-three	eighty-three	one hundred and thirty-two	two hundred and nine	three hundred and thirty	five hundred and twenty-eight
Allowable pressure difference (MPa)		one point six							one	zero point five
Nominal pressure (MPa)		1.6 4.0
Inherent flow characteristics		Quick open
Working temperature ℃		≤300
Suitable for media		Gas, steam, low viscosity liquid
Flange size and type		PN10, 16, GB9113-88 convex PN40 concave Alternatively, other standard types of flanges (such as ANSI, JIS, DIN, etc.) can be selected according to user requirements
structural length		According to GB12221-89 standard
Temperature setting range ℃		0～70 50～120 100～170 150～220
Temperature transfer coefficient (mm/℃)		zero point eight
Time response is constant		one hundred and twenty
Overtemperature protection ℃		Set the upper limit of the temperature range+50
Warm pack material		brass

5、 Main performance indicators of YZW type self operated temperature regulating valve:

Control accuracy%

±5

Allow leakage leakage

Hard seal (L/H)

Single seat (Class IV): ≤ 10-4 Valve rated capacity: Double seat, socket (Class II), ≤ 5 × 10-3 × Valve rated capacity

soft seal （ml/min）

DN(mm)

twenty

twenty-five

thirty-two

forty

fifty

sixty-five

eighty

one hundred

one hundred and twenty-five

one hundred and fifty

two hundred

zero point one five

zero point three

zero point four five

zero point six

zero point nine

one point seven

four

six point seven five