Brass Float Valve Brass Swing Check Valve With Handle Iron

Product Details

Product Description

Product Description
Component:

NO	Component	Material
1	Body	Brass
2	Bonnet	cuzn40pb2
3	Brand	meet your inquire
4	Seat Ring	PTFE
5	Stem	Iron or Brass
6	Packing Rings	PTFE
7	Washer	EPDM
8	Handle	Iron or aluminum
9	Nut	Brass or iron

How to clean brass turn on valve for toilet?
Simply rub a thin coat onto the brass, let sit for an hour or so, and then clean the piece with hot, soapy water. Another option is to make a paste of equal parts salt, flour, and white vinegar. Apply the paste to the brass and let sit for up to an hour. Rinse with warm water and buff dry.
Advantages:
1, simple structure, more convenient for manufacturing and maintenance.
2, small work trip, short opening and closing time.
3, good sealing, close cover between the small grinding force, longer life.
4.The structure of the cut-off valve body is straight-through, DC and right-angled. The straight-through type is the most common structure, but its fluid resistance is the largest. DC type fluid resistance is small, mostly used for fluids containing solid particles or large viscosity. The right-angled valve body is mostly forged and is suitable for cut-off valves with smaller pass-through and higher pressure.
5, in the opening and closing process, the friction of the close cover is smaller than the gate valve, and it is wearable.
6, usually only a secret cover, manufacturing process is good, easy to repair.
Characteristic:
(1) The stop valve structure is simpler than the gate valve and is more convenient for manufacturing and maintenance.
(2) The secret cover is not easy to wear and scratch, and it is well sealed. There is no relative sliding between the disc and the body cover when it is opened and closed. Therefore, the wear and abrasion are not serious, the sealing performance is good, and the service life is long.
(3) When opening and closing, the valve travels small, so the height of the stop valve is smaller than the gate valve, but the structure length is longer than the gate valve.
(4) The opening and closing moment is large, the opening and closing are more laborious, and the opening and closing time principal.
(5) The fluid resistance is large, because the medium channel in the valve is more tortuous, the fluid resistance is large, and the power consumption is large.
(6) When the medium flow direction is known as the pressure PN ≤ 16MPa, the flow is generally used, and the medium flows upwards from the lower part of the disc; When the nominal pressure PN ≥ 20MPa, countercurrent is generally used, and the medium flows downstream from the disc to increase the seal energy. When used, the stop-valve medium can only flow in one direction and can not change the flow direction.
(7) The disc is frequently eroded when fully opened.
The stem axis of the cut-off valve is perpendicular to the seat cover. The stem opens or closes for a relatively short period and has a very reliable cutting action, making the valve suitable for use as a medium for cutting or regulating and throttle.
How to solder copper pipe to brass valve?
The copper valve body can be welded by the argon bai arc welding du method, but this is generally a zhi casting, and you can choose a brass argon arc welding wire suitable for argon arc dao welding of copper alloy castings, such as Viodin brass argon arc welding wire , Is a kind of brass welding wire used for argon arc welding, instead of brass gas welding brazing wire welding,
Precautions:
1. The oxide, oil and other dirt on the welding edge of the workpiece and the surface of the welding wire must be cleaned up before welding, otherwise it will cause defects such as pores and slag inclusion, which will reduce the performance of the weld.
2. When welding brass or bronze with argon arc welding, because the melting point of the mother body itself is relatively low, for the welding of ultra-thin tube or plate materials, please ensure that the weld pool can be formed normally.
3. When the plate thickness of the butt joint is less than 3mm, no bevel shall be provided; when the plate thickness is 3~10mm, 60°~70°V-shaped bevel; when the plate thickness is greater than 10mm, 60°~70°X-shaped bevel shall be provided . In order to avoid incomplete welding, generally no blunt edges are left.
4. The workpiece must be preheated before welding. The preheating temperature is 150~300℃ for plate thickness less than 3mm; when the plate thickness is greater than 3mm, the preheating temperature is 350~500℃.
5. Use DC positive polarity welding when performing TIG welding.

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