Thermostatic bellows steam trap (steam pressure balance) is an advanced energy-saving steam trap commonly used in the world. Bellows steam trap is sensitive, there is high temperature condensate before the valve, no steam leakage, energy saving effect is remarkable.
Its advantage is: automatic exhaust air, small volume, not afraid of freezing, any location can be installed; Easy maintenance, in the pipeline can be checked repair and replacement parts; Back pressure rate ≤80%, strong film box, long service life.
Bellows steam trap is suitable for steam main line, steam tracing pipe network, instrument tracing and small heating equipment steam drainage, the use of a wide range.

Instructions for ordering:
1. If there is no selected model, please provide detailed parameters, such as medium, temperature, pressure, caliber, material, etc., and our technicians will select the model for you
Ii. If the selected model is available, please provide it according to the selected model
Non-standard products shall be provided with samples or confirmed by drawings
Note: the information is for reference only, or may not be complete, so we apologize for any inconvenience caused to you. The company can be selected according to different requirements and parameters. The company has a variety of sizes caliber, pressure, different materials, connection mode, drive mode, to meet different needs of the trap. Please contact 021-6651 8677 or consult online.

The main action element of bellows is the metal bellows, which are filled with a liquid whose gasification temperature is lower than the saturation temperature of water. At the beginning of the device, low temperature condensate appears in the pipeline, and the liquid in the membrane box is in the state of condensation. The valve is in the open position. When the condensate temperature gradually increases, the filling liquid in the membrane box begins to evaporate, and the pressure in the membrane box rises. The diaphragm drives the valve heart to move in the direction of closing. Before the condensate reaches the saturation temperature, the steam trap is closed, and the membrane box controls the valve switch with the change of steam temperature to block steam drainage. There are two kinds of membrane boxes with open valve temperature lower than saturation temperature 15 ℃ and 30 ℃.