globe valve

If you are interested in any of Globe valve products, Please contact this website!http://www.bellowsglobevalve.com/http://www.bellowsglobevalve.com/

Gate Valve800LB

Gate Valves do have low-pressure limitations, and are not optimal in applications that require cleanliness or sanitary conditions.
If you want to konow about more information, you can enter this websit http://www.cgvalve.com/gate-valve.html

Gate Valve

We are professional gate valve manufacture from China. If you are interested in any of cast steel gate valves or other cast steel valves, or have a customized requirement to fill, please feel free to email us. We hope to hear from you soon.

High Performance Butterfly Valves

Product DescriptionFeatures:

1) At the time of opening, the disc can separate itself from the seat promptly, thus the friction torque is low

2) It is reliable in sealing. The more it closes, the tighter the sealing. It is suitable for medium pressure pipes with t he nominal pressure between 16MPa and 4MPa

3) The adjustment can be done for compensation if the valve seat is worn, thus prolonging the service life

4) The sealing face of the valve seat is made of PTFE, which is suitable for a temperature between -30ºC and 230ºC

Brass Gate Valve information

Secure copper co.,ltd.Founded in 1994.Locates in qinggang xiaqiu sci-tech industrial area, yuhuan, zhejiang, which is one of the famous brass , ball , gas , check , angle , gate valve, bibcocks and brass plumbing pipe fittings bases in china.Developing for several years, our company and possess many managers, using the latest computerised managing technology.We employ lots of technicians staffs, adopt advanced cad computer system for designing, process machinary for guarante eing the excellent quality in valves production.All the produtcing comply to the iso9001:2000 international quality system, and the company always doesn'T stop to pursue perfection of the products.

Introduction of flameout protector

The purpose of flameout protector:
When we use the cook top, the fire may be extinct because of the wind or overflowing water. In this case, the protector may cut off gas to prevent some accidents happening because of its leakage, such as poisoning, explosion or fire. In this way, it realizes its safety protection function.

Working sketch-map of flameout protector
The first step: Piezoelectricity

The second step: Valve-open condition
The top of the thermocouple is heated by fire, and it causes thermo electromotive force. Then it will be in series between the closed circuit and the valve. Outside force and the magnetic field breathe the valve and keep it open, and the gas channel is open.
The third step: Cut off gas in sudden flameout condition
When the fire is extinct because of wind or overflowing water, the thermo electromotive potential will minish quickly, and the ferrite core will come back to its original place to cut off the gas because of the loss of the spring effect.

Attention:
1. Thermocouple
1) There mustn’t be any damage or peeling off for the cover of insulation wire or insulation sleeve, otherwise it will cause short circuit, which will influence the normal operation of the valve.
2) The fix-up of the thermocouple must dissipate heat to reduce the heat accumulation of fixing board and thermocouple copper. This can shorten the valve-closing time when there is sudden flameout.
3) The heated part of a thermocouple must be on the top of 2-3mm. Not to put the top into the fire, otherwise it may reduce the potential and shorten its life.

2. Solenoid valve
1) Prevent the valve from being strongly striken in the process of installation and shipment, otherwise it may influence its normal performance.
2) Before installation, the user must check the valve flatly on the test clamps with some prepressing. It is not allowed to be freely-flip. This assures that magnetic material won’t be damaged by colliding, otherwise it will influence the magnetic force.
3) Clean the impurity such as aluminum or oil left on the inner wall of the stove and the surface of the valve.
4) Keep the good connection of the solenoid valve and thermocouple. Prevent the safety protection device from operating abnormally because of too big contact resistance.
5) The warehouse of solenoid valves must be dry and ventilated and strictly prohibit extrusion.