Tilting disc check valve pdf download

Tilting disc check valve 35 1 the series 35 check valve is a reliable metal seated valve with an oblique seating angle widely used in industries such as. The disc is maintained open in equilibrium by the fluid flow and when it stops the reversed flow makes the disc move to the closed position by rotating it against the seat, not slamming into it as it happens. The invention discloses a tilting disc check valve, which includes a left valve body 1, a right valve body 2, a large valve plate 3, a small valve plate 4 and a diaphragm control group 5, wherein the left. Emergency valve for automatic back flow prevention in the event of pipe. Nafcheck tilting disc check valves size 224, ansi class 150 and 300, naf 526440 528661 fk 30. These valves are constructed entirely of 316ss with ansi 150 type flange rating.

The entire valve is a cast design for better strength and stability. The valve achieves full opening when the disc tilts in the flow of the media. An introduction to nonreturn valves and the importance of correct. Tilting disc check valve check valves babcock valves. The tilting disc check valves are made of 2 piece body, designed to accomplish full flow opening by having the disc pivot or tilt in the flow media. The check tilting disk check valve is a costeffective valve with a unique design that provides excellent tightness and minimizes waterhammering.

This valve offers significant energy and cost savings over the life of the valve due to its large flow area and low head loss characteristics. Swing check valves prevent reversal of flow through pipe lines. Tilting disc check valve operation and maintenance manual. All interior parts are stainless steel or coated wit. The tilting disc check valve is also offered with an upper hydraulic dashpot to aid in disc closure in multiple pump systems even after a power failure. Tilting disc check valves with hydraulic damper eliminate the closing slams and. Standards for check valves design manufacturing are asme b16. Unique design gives excellent tightness and minimizes waterhammering.

Pressure cwp 150 material cf8, cf8m, cf3, cf3m, cf8c, cn7m, cd4mcu, cg8m, cg3m, cw12mw,cd3mwcun, ck3mcun, cw6mc, wcb, wcc, lcb,lcc, a494m351, a494cz100, a494 cy40 design manufacturer desgin face to face manufacturer desgin end connection asme b 16. Most crane swing check valves can be installed in horizontal or vertical, upward flow, piping. The tilting disc check valve is similar in appearance to an eccentric butterfly valve. Check valves knife gate valves, ball valves, check. The pratt tilting disc check valve offers significant energy savings compared to other types of conventional check valves because of its larger flow area and low head loss characteristics. Tilting disc check valve sri ranganathar industries pvt. Tilting disc type bonnetless tilting disc check valves, otherwise called equilibrated disc check valves, have the well known features of a typical no slam behavior. They are available with top or bottom mounted buffering sys tems, as well as a. American controls also stocks a line of orbinox 316ss tilting disc check valves other material available on special request. With the development of the first rubber seated butterfly valve more than 70 years ago, the henry pratt company became a trusted name in the flow control industry. Closing speed is adjustable depends on working conditions. Normally, the check valve closes under the action of the spring force on the left. The pivot offsets are made when constructing the valve with hinge pins. If the back flow reaches to check valve before the disc closed, the result will be slammed closing and water hammer.

Tilting disc check valve, with counterweight and hydraulic damper in option, is designed as double eccentic double falnge, and is applied in the water industry, irrigation, municipal engineering, water. Tilting disc valve by alloy valve stockist tilting disc. Tilting disc check valves are manufactured to the latest edition of bs1868 and tested to api 598 contact supplier download chat now. In tilting disc check valves, the closure element is a pivoted disc with the pivot axis closer to the center of the flow steam, if compared with the swing check models. Erhard tiltingdisc check valve with pneumatic fullopening device, ensuring. A complete range of gate, globe and check valves for all of your high pressure and high temperature applications. Tilting disc check valves with hydraulic damper eliminate the closing slams and water hammer for entire closing stroke. Pratt tilting disc check valve henry pratt company. Avk tilting disc, slanted metal seat check valves are installed in pumping applications to prevent backflow in the system. Metaltometal seat wafer style tilting disc check valve. Tilting disc check by mounting the disc hinges lower on the disc, the energy required to open this check valve is greatly reduced. Short disc travel from full open to full close provides the ability to close very rapidly or very. Tilting disc check valvealloyduplex stainless steel tilting disc check valve pressure rating. Carbon steel tilting disc check valve,wcb tilting disc.

This guide is intended to assist the user in the sizing and selection of the best check valve for a given application. Tilting disc check valves are designed to prevent the disc slamming and to ensure, at the same time, a quick closing service. The core of a cni twopiece tilting disc check valve consists of a pivoting circular disc secured within a cylindrical housing. From the most common application to the most severe, velan has a solution. A tilting disc swing check valve that allows liquid to flow only in single direction is disclosed herein. The center of gravity of the disc and the oblique seat makes the valve close fast and. A6 special instructions for tilting disc check valves. When flow is moving forward, the valve easily opens and when there is flow reversal, the valve immediately closes. Slanting disc check valve is closed to drain the system, etc. Some designs simply fit between two flange faces and provide a. Bypass piping with a manual shutoff is readily available to permit flow around the disc when the. Kvt om manual, hifluidic swing check valves key valve. Carbon steel, stainless steel and other materials available pdf download.

Tilting disc check valves when the check valve must be operated by a very small pressure drop this design is used. Its streamlined body contouring, flow area 40% greater than nominal pipe size and hydrodynamic disc combine to provide the lowest headloss of any check valve produced today. All components of the valve are designed for high stress occurred during damping effect. One of the most comprehensive valve product lines available from any manufacturer. Print this page bookmark this email us pdf download.

The pratt tilting disc check valve is the most versatile and reliable check valve pratt has to offer. It is also known as a tilt check valve or a tiltingdisk check valve. The tilting disc design through lifting and stabilizing in the fullopen. When the flow stops, weight of valves closing mechanism will swing. The tilted disc check valve is an excellent choice for raw water, cooling water and treated waterwastewater applications. A tilting disc check valve is a check valve where the disc has a pivot point at the center of the disc. Valve disc is balanced in such a way that very small variations of pressure openclose. The opening stroke range is much less than that of the conventional swing check valves, therefore reduces opening and closing time critical to controlling flow reversal and reducing. Industrial valves pressure seal tilting disc check valves supplier. Avk tilting disc check valves are installed in pumping applications to prevent backflow in the system.

The rm model check valve is a reliable metal seated nonreturn valve with oblique. Tilted disc check valve shut off valve and ball valve. A high performance tiling disc check valve has double offset pivot. It is also available in bs, din and ss standards see catalogue sheet fk 30. Gdval valve is an innovating enterprise with 25 years of valve design and manufacturing experience.