Q:All inclusive ball valve and half a bag of the difference between the ball, mainly new manual ball valve

CharacteristicFirst, wear-resisting; because the hard sealing ball valve spool is alloy steel spray welding, sealing ring is alloy steel surfacing, so hard sealing ball valve in the switch will not cause too much wear and tear. (its coefficient of hardness is 65-70)Two, good sealing performance; because the hard sealing ball valve sealing is artificial grinding, until the valve core and the sealing ring completely in conformity with the use. So his sealing performance is reliable.Three, switch light; because the hard sealing ball valve sealing ring at the bottom of the spring, so that the sealing ring and valve tightly held together, so when the outside force exceeds the preload of the spring, the switch is very light.Four, long service life: has been widely used in petroleum, chemical, power generation, paper making, atomic energy, aviation, rockets and other departments, as well as people's daily life.

Q:Ball valve specifications 1/2 inches corresponding to DN?

1/2 is DN15, 3/4 is DN20, and 1 is DN25And so on

Q:Manual ball valve type: Class400, 20 ', what does that mean, industrial knowledge?

The pressure rating of the valve type and American StandardIt's a 20 inch, 400 pound valve20 inch =DN500 (nominal diameter)400 pounds equivalent to nominal pressure PN64 Mpa

Q:PP-R double joint hot melt copper ball valve DN50 connection method how to connect?

The way of hot melt welding, using special electric welding machine can do the things that do, configuration 50

Q:PPR gate valve, stop valve, dark valve, ball valve what is the difference between the gate valve and dark valve is a thing?

Dark valveThe blind valve is used to control the solar switch, and the double live ball valve connects the hot water pipe and the pipe, or the connection between the prefilter and the pipe, then it will be replaced in the future. The dark valve can be connected to the three pass.Globe valveBall valve (ball valve), standard GB/T21465-2008 "valve terminology" is defined as: "open and close parts (spheres) driven by the stem, and around the axis of the ball valve for rotation of the valve.". Can also be used to regulate and control fluid, strong shear force between the metal seat seal V type ball valve V type ball core and welding hard alloy, especially suitable for containing fibers, small solid particles and other media. Switch and multi way valve in the pipeline not only can flow, and flow diversion, flexible control of the medium, but also to turn off any channel to the other two channels. This kind of valve should be installed horizontally in the pipeline. In accordance with the way to drive the ball valve is divided into: pneumatic ball valve, electric ball valve, manual ball valve.

Q:Which one is more durable?

Butterfly type unused, a long handle used, the quality is very good.

Q:What q25r-j159 BB-F-TE-NB represents American Standard ball?

American Standard top mounted hard seal fixed ball valve modelQ: valve type - ball valve, BALL, VAVE2: pressure class -150cl pounds scale5: structural form - tethered body, top mounted, fixed ball (abbreviated BB-F-TE-NB)R: connection form -RF convex mesa flange connectionJ1: body material -A216-WCB cast carbon steel59: spool material -13%Cr

Q:Where to buy the ball valve?

Use less to the local hardware market, use more direct to find a company to buy

Q:What is a high handle ball valve? What's the difference between it and ordinary ball valve?

Long distance between the valve casing and valve ball valve operating handle, mainly used for pipeline insulation, thermal insulation when the body is exposed in the insulation material,

Q:What do you mean by ball valves dn20pn1.6rf?

DN20 caliber is 20mmPN is the pressure grade, usually PN16, 1.6MPa classRF convex flange connectionYour side should be similar to the Q41F-16 model of this type of ball valve