q: rising stem gate valves and what's the difference between a non-rising stem gate valve?

a: the difference between the rising stem gate valves and non-rising stem gate valve has the following four points:

1, non-rising stem flange gate and the ascension of the screw is only rotate under the supreme and moving, the leakage is a lever, the nut is fixed on the disc, improve ram through the rotation of the screw, no visible door frame; Non-rising stem gate drive screw is located inside the body, in the process of opening and closing, the Industrial Valves stem only do spin move, disc in the valve body. Therefore, the height of the valve size. Flange valve stem ascending screw is exposed, the nut is close to the handwheel and fixed ( Not rotating axial movement) , improve ram through rotation of the screw, the screw and the rotation of the damper is the relatively movement without the relative axial displacement, appearance is a door shape bracket. Rising stem gate and non-rising stem gate valves.

rising stem gate valves

2, screw non-rising stem valves is can't see, and Ming is that can see the screw rod.

3, non-rising stem valves at the switch when the steering wheel with the Industrial Valves stem is connected to the relatively fixed, it is through the valve stem in fixed point is lifting rotation to drive the valve disc and the brake to complete opening and closing. Rising stem valves by stem and screw thread of the steering wheel drive to ascend or lowered the disc.

4, rising stem gate valves with the stem drive disc lift, valve stem drive screw thread on the outside of the body, therefore, according to the movement direction of the valve stem and intuitive judgment gate opening and closing and location, and thread for lubrication and transmission fluid corrosion, but it requires a larger installation space.

as a domestic high-end valve manufacturer, has been in response to national policy and called for, committed to research and development, manufacture, electric butterfly valve, stainless steel ball valve, discharge valve, electric gate valves, stainless steel gate, stainless steel valve, stainless steel check valve, high pressure gate valves high-quality let customer trust of good valve, the Industrial Valves to keep traditional valve product sales profits to escort for the innovation research.

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