Forged Steel Welding Float Ball Valve And Trunnion Mounted Fixed
Ball Valve
Product introduction:
Welding ball valve is an integral welding ball valve made of carbon
steel seamless steel pipe, with a valve stem made of AISI303
stainless steel and a ball body made of AISI304 stainless steel. It
is finely processed and ground, and has excellent sealing
performance and corrosion resistance The sealing adopts carbon
reinforced PTFE inclined elastic sealing ring with negative
pressure on the spherical surface, achieving zero leakage and long
service life. There are various connection methods for welding ball
valves, such as welding, threading, flanges, etc., for users to
choose from. The driving methods can adopt transmission structures
such as handle, turbine, pneumatic, electric, etc. The switch is
flexible and lightweight.
Welding ball valve is developed by absorbing foreign technology and
combining it with the actual situation in China. It adopts an
integrated welding process and replaces imports with domestic
products to fill the domestic gap. Widely used in long-distance
pipeline fields such as natural gas, oil, heating, chemical and
thermal power pipelines, welded ball valves can be directly buried
underground, without the need to build tall valve wells to reduce
engineering costs, and can also avoid personal injury when
operating valves. Welded ball valves can be operated and used for a
long time with a warranty period of up to 20 years under normal
valve operation
Product technical parameters:
| Nominal Diameter DN (mm) | DN15-DN1200 |
| Nominal Pressure PN (MPa) | 1.6 - 4.0 |
| Test Pressure (MPa) | Strength (water) | 2.4 - 6.0 |
| Enclose (Water) | 1.76 - 4.4 |
| Main Components | Valve body | Forged steel |
| Ball | Stainless steel |
| Seat | PTFE |
| Axle | Stainless steel |
| Working temperature | 120℃ |
| Medium suitable | Water, steam, oil and corrosive mediums |
| Connection | Flange ends |
| Flow direction | Bidirectional |
| Driven method | Level,worm gear, pneumatic and electric actuator |
Product features:
1. Welding ball valve body uses the all welded structure, there
won’t be the phenomenon such as external leakage, the valve
structure is more compact, easy installation.
2. Low operating torque: valve adopts has the self-lubricating
backing PTFE metal collar, small friction torque, to ensure that
the valve to operate under the condition of the low torque.
3. Double block and excretion function (DBB): both sides of the
valve in the closed position and the ball under pressure at the
same time, the body lumen of medium (water, gas or oil etc) from
the drain valve discharge.
4. Double piston effect seat structure design: both sides of the
seat under the action of pressure seal (double piston effect)
double sealing seat design features, once the upstream seat is
damaged and leakage, medium pressure on the downstream side into
the valve cavity, the seat into the sphere close contact, can seal
the downstream seat.
