Size : 1/4~4"(DN8~DN100)
Rating : 150LB~2500LB (PN16 ~ PN420)
Connection:NPT,SW
Working Temperature:-46~425ºC
Seat:PTFE,RPTFE,NYLON,MOLON,PEEK,DEVLON,POM,PCTFE,PPL,
STL NI60,STL NI55,STL20#,STL6,WC,TCC
Material:
A105,LF2,F304,F316,F316L,F304L,F321,F51,F53,F55,F60,F6a, 20 Alloy,
C61900,C63200,C83600,C37700,Inconel625,Inconel825,Monel400,Monel500,H.C-276ect.
Application Specifications:
1.Design and manufacture conform to BS5351;MSS SP-118
2.Socket welded ends conform to ANSIB16.11;JB/T1715
3.Screw ends conform to ANSI B1.12.1;JB/T7306
4.Butt-welded ends conform to ANSI B16.25;JB/T12224
5.Test and inspection conform to API598;GB/T13927;JB/T9092
6.Material conform to ANSI/ASTM
| NO | PART NAME | CARBON STEEL | STAINLESS STEEL |
| 1 | BODY | A105 | F304 | F316 | F316L |
| 2 | BALL | SS304 | SS316 | SS316L |
| 3 | STEM | SS304 | SS316 | SS316L |
| 4 | SEAT | PTFE,RPTFE,NYLON |
| 5 | GASKET | O-RING,PTFE,GRAPHITE |
| 6 | STUFFING | PTFE,GRAPHITE |
| 7 | GASKET | PTFE |
| 8 | LOCATING PIECE | A283D,STAINLESS STEEL |
| 9 | LEVER | A283D,STAINLESS STEEL |
| 10 | STEM NUT | STAINLESS STEEL A276-T304 |
| 11 | STOP PIN | STAINLESS STEEL A276-T304 |
| 12 | NUT | A194-2H | A194-8 |
| 13 | STUD BOLT | A193-B7 | A193-B8 |
In order to meet different needs of customers,we provide two series of ball valves,full bore and reduced bore ball valves.The channel inner diameter of full bore ball valves is consistent with the inner diameter of pipeline,which can not only minimize the fluid resistance but also facilitate pipeline cleaning.The fluid resistance of necked bore ball valves is much less than that of the globe valve with the same caliber while its weight is 30% lighter than ball valves with the same caliber.As a result,it can effectively reduce both the production cost and price,and is relatively widely used.
The stem is downloading,with its inverted sealing structure with sealing gasket.The force of inverted sealing structure will increase while the medium pressure in the valve cavity increases,to ensure the sealing effect of the stem.In case of abnormal pressure increasing of the valve cavity,the stem won't be impacted out.The filler is designed with proper V-shaped structure,which can effectively convert the medium pressure inside the valve cavity and the locking force of outer gland into the sealing force of stem.
According to the user's requirement,the ball valve can be designed with fire-resistant structure.In case of a fire and the sealing ring is damaged,every sealing part of the ball valve can form the structure of metal to metal hard seal,which can prevent the spreading of both the media and fire.
According to the user's requirement,the ball valve can be designed with anti-static structure;namely,fix the conductive spring between the ball and stem as well as stem and valve body,the enable the static generated when opening the valve to be transmitted to the pipeline through static channel and conducted underground and finally eliminate the static.It can prevent the static ignition from lighting the medium to ensure safety of the system.
For valves installed outdoors,those preventing improper operation of non-workers and valves,of which collision of its stem in relatively violent vibration occasions easily causes improper operation,a locking bore can be set in the fully open position or fully closed position and a lock can be used if needed,for the purpose of security insurance.
We welcome all the world customers to contact us for more cooperation.
CHENGWEI VALVE will be one of your best parters in China.
Chengwei valve is located in the Anfeng Industrial Zone, Oubei Town, Wenzhou City, Which is "Hometown of Pump and Valve in China". It's a professional valve manufacturing enterprise, combined with scientific research, manufacturing and sales. Our company, adhering to business concept of "Taking quality as the life, and meeting customer's requirements as the priority", provides customer's with outstanding quality, ideal price, complete varieties and timely delivery and excellent after-sales service. As a result, our products have been well-received by customers, and sold to domestic and foreign markets.
Our company with excellent equipment, strong technical force, complete testing facilities, widely applies GB, API, ANSI, DIN, BS and JB manufacturing standard for its products. Main products: API forged steel valve series, forged steel ball valves, Y-strainer, gate valves, globe valves, check valves and other products, which are widely used in petroleum, metallurgy, chemical, electric power, mining, food, pharmacy, construction, environmental protection, paper manufacturing and other industries.
Our company will continue to actively develop new products through new technologies, new processes, and new materials, to provide quality valve products with first-class quality and perfect price to customer. Valve Materials: A105, LF2, F304, F304L, F316, F316L, F51, F53, F55 etc.
We welcome clients both from home and abroad visiting, guiding and business talking. We sincerely hope a long term cooperation with you. CHENGWEI VALVE will be one of your best parters in China.
