American standard ball valve Q347H-600LB

Structural characteristics

A ball valve is a valve that uses a ball with a circular through-hole as the opening and closing element, and the ball rotates with the valve stem to achieve the opening and closing action. Its advantages include:

1. The fluid resistance is small. When fully open, the cross-sectional area of the spherical channel, valve body channel, and connecting pipeline is equal and connected in a straight line. The medium flows through the ball valve, which is equivalent to passing through a straight pipe. Among various types of valves, the fluid resistance of the ball valve is the smallest.

2. Quick opening and closing, only need to rotate the sphere 90 ° during opening and closing, convenient and fast.

3. The structure is relatively simple, the volume is small, and the weight is light. Especially its height is much smaller than that of gate and globe valves.

4. The valve body is precision cast with silicon melt adhesive, with a smooth and beautiful appearance.

Technical parameters

Nominal pressure: 150LB~300LB;

Nominal diameter: 1/2 "~10";

Test: Hydraulic Housing Strength Test -1.5 times the maximum rated working pressure

High pressure liquid sealing test -1.1 times the maximum rated working pressure

Low pressure gas sealing test -0.6Mpa;

Applicable temperature: ≤ 120 ℃ (soft seal) ≤ 425 ℃ (hard seal)

Applicable media: oil, gas, water, etc. (WCB); Nitric acid (CF8);

Related standards

1. Design and manufacturing: API608;

2. Structural length: ASME B16.10;

3. Connecting flange: ASME B16.5;

4. Pressure and temperature: ASME B16.34;

5. Inspection test: API598.