FORGED TRUNNION BALL VALVE
The trunnion ball valve is used to cut off or connect the media in various of Class150~Class2500. The valves made of different materials are suitable for various media such as water, steam, oil, liquefied gas, natural gas, coal gas, nitric acid, oxidizer, urea and etc. The driving modes include manual operation and electric operation. The connection ends can be flange or butt welding.
1. Low Operating Torque
The trunnion pipeline ball valve adopts the trunnion ball structure and floating valve seat, so as to achieve lower torque under operating pressure. It uses self-lubricating PTFE and sliding bearing to reduce the friction coefficient to the lowest in conjunction with the high intensity and high fineness stem.
2. Fireproof Structure Design
In case of fire during the use of valve, the seat ring, stem O ring and middle flange O ring made of PTFE, rubber or other non-metal materials will be decomposed or damaged under high temperature. Under pressure of the medium the ball valve will push the seat retainer rapidly towards the ball to make the metal seal ring contact the ball and form the auxiliary metal to metal sealing structure, which can effectively control valve leakage. The fireproof structure design of trunnion pipeline ball valve conforms to requirements in API 607,API 6FA,BS 7655 and other standards.
| No. | Part Name | A | B | C | D | E |
| 1 | Body | ASTM A105 | ASTM A182 304 | ASTM A182 316 | ASTM A182 304L | ASTM A182 316L |
| 2 | Ball | ASTM A105+ENP | ASTM A182 304 | ASTM A182 316 | ASTM A182 304L | ASTM A182 316L |
| 3 | Stem | ASTM A182 F6a | ASTM A182 304 | ASTM A182 316 | ASTM A182 304L | ASTM A182 316L |
| 4 | Seat retainer | ASTM A105+ENP | ASTM A182 304 | ASTM A182 316 | ASTM A182 304L | ASTM A182 316L |
| 5 | Seat | PTFE/ NYLON/ PEEK/ PPL |
| 6 | Stud/Nut | B7M/2HM | B8/8 | B8M/8M | B8/8 | B8M/8M |
| Design and manufacturing | API 608 , API 6D |
| Pressure test | API 598, API 6D |
| Transmission mode | Manual, worm and worm gear transmission, pneumatic, electric |
OVIKO is one of leading all kinds of ball valve and ball valve parts manufacturers. The products included Trunnion mounted ball valves, floating ball valves, top entry ball valves, fully welded ball valves, metal to metal ball valves, 3 way ball valves, V port ball valves, etc. Also we can make ball valves' parts according to customer drawings.
Our products nominal dia is 1/4"--48". Pressure grade is 150LB-2500LB. Working temperature is -196ºC-450ºC. The material are carbon steel, alloy steel, stainless steel, and so on. To guarantee the products quality, we passed ISO 9001 International Quality Assurance System, CE, API 6D, API607, API6FA, etc. High quality and excellent after-service get our products good market nearly every parts of the world, such as U. S. A, Spain, UK, Italy, Canada, Mexico, MID-east, India, etc. With years of exporting experience, we are good at manufacturing to standards: GB, DIN, ANSI, BS, AS, JIS, ISO, API etc.
We insist on the concept of "Quality first, prestige important", and after continuous innovation and development, the products have been widely used in many fields, range from oil plants, chemical plants, fertilizer plants, smelters, medical factories and power stations. Not only the products sold well in the world's market, but also have enjoyed a good reputation in the markets. We offers the customers with valves of excellent quality and best service, hope to build a new brilliant with you in the future.
