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Kavaata Valves - Ball Valves manufactured in India by Rajeev and Compan
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Special Purpose Ball Valves

Special Purpose Ball Valves

Flanged
Flanged
Flange End Ball Valve with Limit Switch

It is required some times to know the position of the valves by an electrical signal. One or Two Limit Switches are provided depending on the requirement to know if the valve is open or closed. The Valves come with complete bracket for mounting of the limit switches. Also a physical color indicator is provided to know the position.

  • MOC    -    WCB/CF8/CF8M
  • SIZE    -    0.5" to 4"
  • ENDS   -    FLANGED / SCREWED / SOCKET WELD
  • DESIGN       -    3 PIECE
  • NUMBER OF LIMIT SWITCHES     -    1 OR 2
Peep Hole Ball Valve for Blast Furnace

This valve is used on Blast Furnace to view the flame quality. Usually a Sight Glass is provided for this purpose which is always exposed to the high temperature of the furnace, leading to frequent breakages. To avoid this, a Ball Valve is provided which protects this Sight Glass as the Valve is opened only when the flame quality is to be checked. As the Sight Glass is not subjected to high temperature for long durations, it last longer.

  • MOC    -    WCB
  • SIZE    -    0.5" to 1"
  • ENDS   -    SCREWED
  • DESIGN       -    3 PIECE
Cavity filler Ball Valves
Prodcuts

Many industries encounter problem of residues in the ball valve. These residues contaminate the media and hinder the operation of the ball valve. In cases where the fluid is meant for human consumption, it becomes all the more dangerous as it may contaminate and make the fluid toxic. In cases where the media changes from time to time, such as color of paints, the residual paint contaminates and changes the color.

It is therefore necessary to eliminate the deposition of this residue material. The reason why this residue deposits itself in the ball valve is because of the design of the valve. During the half open position of the ball valve, a gap is created between the ball bore and the body. The fluid can easily creep into this gap and get itself deposited in this cavity of the body. To avoid the fluid getting into this cavity, the cavity has to be plugged. This can be done by extending the seats in such a manner that it is always in contact with the ball, thus avoiding the gap. This type of ball valve is known as Cavity Filler Ball Valve.
As per the requirement of one of our clients this ball valve has been successfully developed and tested.

  • MOC    -    WCB/CF8/CF8M
  • SIZE    -    0.5" to 4"
  • ENDS   -    FLANGED / SCREWED / SOCKET WELD
  • DESIGN       -    3 PIECE
Electropolished Ball Valves
Products

Stainless Steel Investment Castings are sand blasted to remove grinding / filing marks and other irregularities. This leads to blackening of the castings. Usually these castings are assembled as it is, making the ball valve look darkened. Some customers complain that the valves do not APPEAR like stainless steel. To solve this problem the valves are electropolished to give them a bright look.

Non Welded Fabricated Ball Valves

Usually to fabricate ball valves, where standard castings are not available, welding is preferred. Welding poses some major challenges, such as formation of heat affected zones which may have different material properties and color. Improper welding can also lead to leakage and rework. Moreover, the reworked valve's appearance is unacceptable. To overcome this hurdle, a new technology to join the flanges was developed. Here the flanges and valve bodies are screwed together and machined to eliminate gaps. These bonds are leak-proof and the appearance of the valves is excellent.

Special purpose ball valves
Products
Special Application Ball Valve for Locomotives 3/4" - 1" Brass Ball Valve with Cap, developed for BHEL, to be used in locomotives.
Products
Control Valve for Gas fired furnace. Operates at 180 degrees for precise flow control.
Products
Control Valve for Gas fired furnace. Operates at 180 degrees for precise flow control.
Products
Three Way screwed end ball valve
Products
Male Threaded Ball Valve with Hose Adapter
Products
Ball Valve with Male Adapter
Products

  • Peep Hole Blast Furnace Ball Valves
  • Male threaded Ball Valve with Hose adapter
  • Ball Valves with limit switches
  • Ball Valves with locking arrangement
  • Locomotive oil drain ball valve
  • Ball Valve with male thread
  • Ball Valves with pneumatic actuators
  • Cavity Filler Ball Valve
  • Electropolished Ball Valves
  • Fabricated Non-Welded Ball Valves

It is required some times to know the position of the valves by an electrical signal. One or Two Limit Switches are provided depending on the requirement to know if the valve is open or closed. The Valves come with complete bracket for mounting of the limit switches. Also a physical color indicator is provided to know the position.
This valve is used on Blast Furnace to view the flame quality. Usually a Sight Glass is provided for this purpose which is always exposed to the high temperature of the furnace, leading to frequent breakages. To avoid this, a Ball Valve is provided which protects this Sight Glass as the Valve is opened only when the flame quality is to be checked. As the Sight Glass is not subjected to high temperature for long durations, it last longer.
Low Pressure Cut-Off Ball Valves
Products
These Ball Valves are designed to automatically operate under set pressure without the need of external pneumatic, electric or hydraulic source. The Ball Valves are designed in such a way that they self actuate themselves by using the line media. When the line pressure rises above a set pressure the Ball Valve opens and if the line pressure falls below that set pressure, the Ball Valve closes. As these valves open and close smoothly there is no hammering/slamming in border line pressures (which is the case with check valves). These valves give tight shut off and smooth flow.