A wide selection of ZECO ball valves is available in bronze, brass, lead-free*, carbon steel, or stainless steel materials. Select the right ball valve in one-piece, two-piece, three-piece, full port, or conventional port. A range of trim materials is available.
A ball valve 4 inch is a quarter-turn on/off device. A pivoting ball in the center of the valve controls the flow of liquid or gas media.
The pivoting ball is known as a rotary ball, and it is designed with a hole (a bore) in the center. A stem on the top of the ball rotates the ball to open or close the valve. The stem can be turned using manual levers or automation.
ZECO 4 inch ball valve is also the most common batch product, which is mainly floating ball valves. Occasionally, fixed ball valves may be used due to special working conditions. ZECO and the National Pump and Valve Testing Center are long-term strategic partners. ZECO regularly sends samples of products for routine use to the testing center for testing every year to verify that the products have not changed due to any possible changes in the long-term production process.
Dimensions & Weight of 4 Inch Ball Valve
Pressure Rating
Bore
Face to Face Dimension(in mm)
Weight
(in mm)
RF
BW
RTJ
kg
CLASS 150
100
229
305
241
35
CLASS 300
100
305
305
321
55
CLASS 600
100
432
432
435
102
CLASS 900
100
457
457
460
146
CLASS 1500
100
546
546
549
216
CLASS 2500
87
673
673
683
263
How does 4 in Ball Valve work?
A 4 in ball valve is a shut-off valve that controls the flow of a liquid or gas by means of a rotary ball having a bore. By rotating the ball a quarter turn (90 degrees) around its axis, the medium can flow through or is blocked.
Features of 4inch Ball Valve
1. ZECO 4 inch ball valve is designed with an automatic pressure relief structure. When the change of pressure or temperature in the pipeline causes an abnormal rise of pressure in the valve body, the medium will open the sealing ring by the pressure of overpressure for automatic pressure relief, so as to ensure the safety of the valve and the pipeline;
2. ZECO 4 inch ball valve has a reliable seating design in low pressure. In very low-pressure lines, depending on the seat itself seal can not be guaranteed, there may be a small leakage. Therefore, ZECO designed the valve seat sealing form loaded by the plate spring. Under the condition of low pressure, the pressure of the plate spring makes the valve seat close to the ball, which ensures the reliable sealing and the sealing performance of the ball valve in long-term use;
3. ZECO 4 inch ball valve has a reliable seating design in high temperature. In the seating of medium and high-temperature structures, ZECO using para polystyrene as seal material can be used in the temperature of 300 ℃, as well as higher temperatures was designed using metal seal combination of high-temperature resistant material;
4. ZECO 4 inch ball valve also has a fire protection structure, anti-blow-out stem, and anti-static international standard structure.
Material of 4″ Ball Valve
No
Part
Material
1
Body
ASTM A105
2
Bonnet
ASTM A105
3
Ball
ASTM A182 F304
4
Seat
ASTM A182 F304
5
Stem
ASTM A276 304
6
Anti-static Device
SS304
7
Gasket
Graphite + SS304
8
Bolt
ASTM A193 B7
9
Nut
ASTM A194 2H
10
O-ring
Viton A
11
Lever
ASTM A216 WCB
4 inch Ball Valve Price
ZECO Valve is a professional 4″ Ball Valve Manufacturer in China, approved by API 6D, API 607 certificate. We can offer a competitive 4 inch ball valve price, if any inquiries, please contact us.
