-
Selection principle of globe valve
Selection principle of globe valve The shut-off valve refers to the valve whose closing part (disc) moves along the center line of the valve seat. According to this movement form of the valve disc, the change of the valve seat port is proportional to the valve disc stroke. Since the opening...Read more -
What is a globe valve?
What is a globe valve? The opening and closing parts of the globe valve are plug shaped disc, the sealing surface is flat or conical, and the disc moves in a straight line along the center line of the fluid. Stem movement form, there are lifting rod type (stem lifting, handwheel not liftin...Read more -
The advantages and disadvantages of the globe valve and installation precautions
The advantages and disadvantages of the globe valve and installation precautions The globe valve has the following advantages: The shut-off valve has a simple structure and is more convenient to manufacture and maintain. The stop valve has a small working stroke and short opening and closing...Read more -
A BATCH OF DUAL PLATE CHECK VALVES READY FOR SHIPMENT
A BATCH OF DUAL PLATE CHECK VALVES READY FOR SHIPMENT. It will take China-Europe train to Europe. dual plate check valve,lug type,12″-150lbs wafer type, dual plate check valve The Dual Plate Check Valve is an all purpose non return valve that is much stronger, lighter ...Read more -
The working principle of the globe valve
The cut-off valve is also called the cut-off valve. It is the most widely used valve. The reason why it is popular is that the friction between the sealing surfaces during the opening and closing process is small, it is relatively durable, the opening height is not large, the manufacturing ...Read more -
The working principle of the three-piece ball valve
The working principle of the three-piece ball valve is as follows: One, the opening process In the closed position, the ball is pressed against the valve seat by the mechanical pressure of the valve stem. When the handwheel is turned counterclockwise, the valve stem moves ...Read more -
Floating ball valve standards and structural features (2)
6. The middle flange (the connection between the valve body and the left body) has no leakage structure. The connection between the valve body and the left body is sealed by gaskets. In order to prevent leakage due to fire, high temperature or vibration, it is specially designed to The valve bo...Read more -
Floating ball valve standards and structural features (1)
1. Structural characteristics of floating ball valve 1. Unique valve seat sealing structure. Years of ball valve manufacturing experience combined with advanced technology at home and abroad designed the double-line sealing valve seat to reliably ensure the valve seal. Professional valve sea...Read more -
The maintenance of the ball valve
The maintenance of the ball valve 1. It is necessary to find out that the upstream and downstream pipelines of the ball valve have indeed relieved the pressure before disassembling and disassembling. 2. Care must be taken to prevent damage to the sealing surface of parts, especially non-metal...Read more -
Ball valve installation
the installation of the ball valve Matters needing attention in ball valve installation Preparation before installation 1. The pipelines before and after the ball valve are ready. The front and rear pipes should be coaxial, and the sealing surfaces of the two flanges should be parallel. The p...Read more -
The structure, characteristics, advantages and classification of ball valves(2)
The ball valve with a fully welded body can be directly buried in the ground, so that the internal parts of the valve are not corroded, and the maximum service life can be up to 30 years. It is the most ideal valve for oil and natural gas pipelines. According to the structure of the ball va...Read more -
The structure, characteristics, advantages and classification of ball valves(1)
The ball valve is evolved from the plug valve, it has the same 90 degree rotation lift action. The ball valve can be closed tightly with only a 90-degree rotation and a small torque. The completely equal internal cavity of the valve provides a straight flow channel with little resistance for...Read more
- Call Support 021-54717893
- Email Support sales@nortech-v.com