FULL WELDED BALL VALVE
Full welded ball valve usually refers to not bolt-bonnet design of body, it be welded by 2 pcs body or 3 pcs body.
Full welding ball valve are widely used in oil & gas process,transportation
industry,water treatment,chemical pipeline for conventional on-off, emergency shut off and quick opening and controlling the flow, especially underground installation.
Fully welded ball valves are especially designed for gas transportation and
storage industries. The fully welded body design can prevent any potential external
leakage from connection of body and bonnet. In addition, the forged body with the
advantages of consistent grain size and even thickness. Thus it inherently eliminates
the conventional casted valve material defects, such as: shrinkage, porosity.
STRUCTURE FEATURES
1. Integral Valve Structure
It is welded by forged steel. The forging materials are subjected to ultrasonic examination according to ASME nondestructive flaw detection requirements. The welding slope on the connection face is subjected to liquid penetration examination.
2. Corrosion Resistance And Sulfide Stress Resistance
Certain corrosion allowance is left for the body wall thickness. The carbon steel stem, fixed shaft, ball, seat and seat ring are subjected to chemical nickel plating according to ASTM B733 and B656. In addition, various corrosion resistance materials are available for users to select.
According to customer requirements, the valve materials can be selected according to NACE MR 0175/ISO 15156 or NACE MR 0103, and strict quality control and quality inspection should be carried out during the manufacturing so as to fully meet the requirements in the standards and meet the service conditions in sulfurization environment.
3. Welding Of Transition Pipe
During the manufacturing of the fully welded pipeline ball valve, the transition pipe can e welded for the welding ends valve. The transition pipe can be supplied by users or by our company according to user requirements. Please indicate the transition pipe diameter and length A when placing orders.
Product Range:
| Size | 2~60" (DN50~DN1500) |
| Rating | 150~600LB |
| Body Materials | Forged Carbon Steel |
| Trim | Carbon Steel, Stainless Steel, Duplex Steel |
| Seat | PTFE,RPTFE,DEVLON,PEEK,PPL |
| Operation | Manual, Electric, Pneumatic, Hydraulic, Pneumatic & hydraulic double acting |
| Extension Stem | 30mm~3000mm |
V&C is a leading valve manufacturer in China with over two decades' experience in the design and supply of industrial valves and pipe fittings.
V&C valve manufacturer provide high-quality products and excellent services to Oil & Gas, Petrochemical, Chemical, Energy & Power, Marine and Mining industries from general to severe in application.
Our product range includes Ball Valves, Control Valves, Choke Valves, Gate, Globe & Check Valves, Safety Relief Valves, Automatic Recirculation Valves, Other Industrial Valves, Wellhead Equipment, Pipe and Fittings.
V&C's diversified flow control solution consists of quarter-turn and multi-turn valves in a variety of steel materials, trims, configurations, sizes, pressure classes, which are designed and tailor-made to meet your specified process requirements.
V&C Valves are licensed and certified to API 6D, API 6A, API 600, API 607/API 6FA, ISO 9001 and other monograms or approvals, such as CE, BV, DNV, TUV, SGS, PED and ATEX.
V&C focus on safety and delivery time from valve sizing, engineering, fabrication, test & inspection, painting and shipping. Our philosophy of "High Sense of Responsibility for Clients" ensures our reliability and customers' total satisfaction. V&C is dedicated to continually offering good products and services all at competitive prices worldwide.
