New double eccentric throttle valves are more reliable, environmentally friendly and convenient to maintain. Double eccentric design also provides better protection against hydraulic impact
The name Hawle is a synonym for quality. Hawle valves guarantees reliability and sustainability of more than 65 years. The new generation of double eccentric throttle valves and valves is no different.
The name “double eccentric throttle valve” comes from the valve position relative to the shaft. The valve center is located in front of and above the shaft center. Most throttle valves have a centered design. Hawle throttle shutter has a double eccentric structure. What is the benefit of this?
AVK valve does not contact the gasket when it is open, which provides optimal work. Result: less friction and less wear, which, in turn, means less maintenance and a longer service life. Double eccentric structure also provides better protection against hydraulic impact.
There are also a number of very important advantages that highlight the innovative design of the double eccentric throttle valve:
• The worm drive is extremely durable, which guarantees a long service life without problems.
• uniform transmission of power from drive shafts to the valve by means of a wedge, and not using fasteners. When using fasteners, the transmission is not always uniform due to the differences in the rod of the screw or due to the changing stress efforts that affect the drive shafts from the side of the fasteners. The wedge is very tightly adjacent to the body (in the leading shaft and in the shaft body), which means that there is actually no gap between the shaft body, wedge and drive shafts. In addition, force is evenly distributed along the entire length of the wedge from drive shafts to the valve.
• stainless steel seat. With a large number of throttle throttle valves (the contact surface for the rubber gasket is pressed in a half chamber. This is not an ideal connection, since it is not 100% durable. There is always a minimum gap between the case and the “saddle” through which moisture can penetrate. With the help of a throttle valve Naval, the saddle is welded in the chamber inside the case and can be effectively used. As a result, the connection becomes 100% hermetic and 100% durable. When using this connection method for the saddle, the likelihood of moisture penetrates between the saddle and the body is excluded, and the optimal compaction is created.