Self Actuated Temperature Control Valve for Steam Hot Water

Self Actuated Temperature Control Valve for Steam Hot Water

Self actuated temperature control valve由两个部分组成：温度传感器和地球阀。self operated temperature control valve不需要外部能量，并且使用液体热膨胀和液体不可压缩的原理来实现自动控制。温度传感器的液体膨胀是均匀的，因此自动操作的温度控制阀是比例控制的。

The self actuated temperature control valve working principle:

根据动作类型和应用，将自动的温度控制阀分为加热类型，冷却类型和混合（/转移）类型。将温度传感器输入需要控制温度的介质中。

（1）当介质的温度上升时，传感器中的液体会膨胀，力克服了弹簧推力，将阀门向下推动，阀门倾向于关闭阀门，从而降低了热介质的流速。

(2) When the medium temperature is lower than the set value, the temperature sensitive liquid shrinks, and the spring pushes the valve plug to open, increasing the flow rate of the heat medium, so that the temperature of the controlled medium tends to rise. The cycle is repeated so that the temperature value of the controlled medium is always within the allowable range of the set temperature.

The Features of Self Actuated Temperature Control Valve:

1. The self actuated temperature control valve is small in size, light in weight and easy to install.
2.自动操作温度控制阀具有广泛的应用，例如蒸​​汽，热水，热油，冷却水等。
3.准确可靠的，长时间的使用寿命，易于调节。
4. Automatic adjustment by the principle of liquid thermal expansion and liquid incompressibility.
5.传感器中的液体膨胀是均匀的膨胀。
6. Control action type of self actuated temperature control valve is proportional control.

自行建立的技术参数ure Control Valve:

1.主管直径：DN15〜DN200;
2.纳入压力：PN16，PN25;
3.Valve body type:single-seat,double-seated,cage guide,three way;
3.Suitable medium:steam,hot water,hot oil,cooling water,etc;
4.Application medium temperature:-20℃~350℃;
5.Temperature control range:0~70℃/50~120℃/100~170℃/150~220℃/200~270℃;
6.允许过载值：将50℃添加到上面的每个温度控制范围内；
7.接头温度：-40℃〜+80℃;
8.Adjustment accuracy:±5%;
9.Pipe length:3.5~4.5m,and if you have special requirements,please specify it.
10.Pressure balancing component: springs,bellows.

Dimensions of Self Actuated Temperature Control Valve:

Size	H1	D1	D	D2	L	d	G	H2	n-Φ
DN32	555	135	32	100	180	25	1-1/4″	180	4-φ18
DN40	570	145	40	110	200	25	1-1/4″	180	4-φ18
DN50	610	160	50	125	230	25	1-1/4″	280	4-φ18
DN65	635	180	65	145	290	25	1-1/4″	280	4-φ18
DN80	680	195	80	160	310	25	1-1/4″	280	8-Φ18
DN100	720	215	100	180	350	25	1-1/4″	280	8-Φ18
DN125	760	245	125	210	395	25	1-1/4″	380	8-Φ18
DN150	800	280	150	240	470	25	1-1/4″	380	8-Φ23
DN200	950	335	200	300	550	25	1-1/4″	480	12-Φ22
DN250	985	405	250	355	640	25	1-1/4″	480	12-Φ22

Note: the unit is mm and the size is for PN16.

Application Example of Self-operated Temperature Control Valve:

Taking steam or high-temperature water as an example, steam or high-temperature water heats the cold water to the required temperature in the heater. Shut-off valves are installed before and after the temperature control valve for maintenance or stop heating and cut off the steam ( or high temperature water) flowing through the regulating valve. The bypass is used when the regulator valve is faulty or overhauled, and the bypass is closed during normal operation. Thermostat controller is installed on the outlet of the hot water.

Installation Instructions of Self Actuated Temperature Control Valve:

1. Valve body installation
(1) The valve body should be installed horizontally at the inlet of the primary heat medium with the valve stem facing up and ensure that the actuator is installed vertically.
（2）应在自动温度控制阀之前安装过滤器，并且精度应尽可能高。
(3) Install the manual stop valve before and after self actuated temperature control valve, install the bypass on the valve side, and install the manual stop valve.
（4）上游蒸汽的最佳工作范围为0.3〜0.7MPa。
(5) The standard installation method is as shown:

2.温度探针安装

The temperature probe is mounted near the heat exchanger outlet or on the water outlet pipe. Do not damage the valve stem when installing the self operated temperature control valve. The temperature probe must be tightly mounted to the wire holder and ensure no leakage or shedding.

3.Actuator installation
（1）导管自然沿毛细管绕组的方向展开。
(2) Press the stem firmly to the bottom. If the force is not enough, please use the auxiliary tools.
(3) Install the actuator assembly on the valve body and tighten the nut to ensure that the heat insulation frame is fastened to the valve body, that is, the installation work of自动执行温度控制阀is completed.