Basic Info.
Material
Ductile Cast Iron, Stainless Steel, Cast Steel
Driving Mode
Manual, Electric, Pneumatric
Nominal Pressure
Pn0.6-1.6MPa
Channel
Straight Through Type
Structure
Double Eccentric
Function
Ajust Ann Shut Down Valve
Application
Industrial Usage, Water Industrial Usage, Household Usage, Electricity, Chemical, Petroleum, Metallurgy
Specification
GB, ANSI, DIN, API, ISO, BS
Product Description
Description
The valve series are new valves which are developed by our company, on the basis of foreign technology on the valves with same specification.
The valve is a double-eccentric structure. Through wedged action of eccentric gear, it achieves opening and closing of sealing pair.
tructural features and usage
Excellent two way sealing
Because of eccentric structure, turning radii of all points of spherical seal are different. When valve is closed, seat becomes more tight and forms enough seal pressure, it makes two way sealing better.
Good liquidity and linear regulation performance of disc
The disc is round straight through, it will become circulated structure wholely when valve is open.
Persistent sealing structure
After sealing element's long time use, by adjusting seal pressing sleeve, with sealing spherical equivalent translation, the valve can obtain the new sealing.
Sealing surface tends to be no abrasion
The operating force is just for opening or closing valve, and it is controlled in a small angle. When valve is open, operating force will decrease with the loss of sealing pressure ratio, then basically there is no abrasion to sealing surface.
Round runner
When valve is fully open, it is full circulation section and the bottom is circular flow structure. It takes away deposit sundry along with medium flow.
In the process of closing, it can remove deposit dirt of sealing surface and do not affect the sealing.
Valve shaft adopts the design of upper shaft and bottom shaft, and it is equipped with self-lubricating shafte sleeve.
In the process of opening, it just have small friction resistance and opening and closing is flexible. The unique O-ring design, its floating shaft seal insteads of original packing sealing, which solves problem of easy loss that packing sealing brings.
Part name | Materials |
Body | Ductile cast iron, stainless steel, cast steel |
Disc | Stainless steel, alloy steel, wear-resistant steel |
Valve shaft | Stainless steel |
Seal ring | High-quality rubber, hard alloy steel |
Bushing | Aluminum bronze |
Packing | O-ring flexible graphite |
PN(MPa) | 0.6 | 1 | 1.6 |
DN(mm) | 400-1600 | 40-1600 | 40-1200 |
Seal test pressure(MPa) | 0.66 | 1.1 | 1.76 |
Shell Test Pressure(MPa) | 0.9 | 1.5 | 2.4 |
Suitable temp(ºC) | -29ºC-300ºC,-29ºC-425ºC,-29ºC-540ºC |
Suitable medium | Water, sea water, sewage, acid-base, etc; slurry, steam, gas, oil, gas |
Driving mode | manual, electric, pneumatic |
Connecting mode | Flange |
Installing method | Vertical type, horizontional type |
Connection standard | GB, ANSI, DIN, BS |
Address:
Room 801, Building 4#, Zijin Entrepreneur R&D Centre, No. 89, Road Shengli, Nanjing, Jiangsu, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Industrial Equipment & Components, Instruments & Meters
Management System Certification:
ISO 9001, ISO 14000
Company Introduction:
JIANGSU COSMIC POWER ENVIRONMENTAL PROTECTION TECH Co., Ltd. Herein refers to "COP company". COP company was established in 2007, it was located in Nanjing city. COP company is a professional valves manufacturer, specialized in designing, researching, manufacturing. Our goal is to do every effort to fulfill customers′ equirements. In the past eight years, we developed and strengthened our manufaturing ability and after-sale service, which makes us receive good reputation from our demestic clients. Currently, we plan to furtherly improve our valves to global markets, and make good preparation for providing the valves with best quality and most competitive prive to all our customers. Our main products include Butterfly valve, Gate valve, Ball valve, Check valve, Globe valve etc. The products is widely used in petroleum, chemical, paper making, electric power, water craft, machine and food industries, etc. Now our productes have passed certificated of ISO9001 and ISO14000.