packaging supplies

Some custom valves are not industry specific; they can be used across a wide range of industries, including chemical processing, food and beverage, gas transmission, mining, oil and gas, and power generation. Some are dedicated to fluid power applications, including solenoid, poppet, hydraulic, cartridge, and air logic valves. Others are for general pipeline applications or smaller-scale fluid systems and include plug, piston, pinch, globe, gate, disc, diaphragm, butterfly, and ball valves. Then there are valves designed to activate automatically in certain events including relief valves and check valves. Some valves are so common that they are grouped by function, for example, boiler feedwater and blowdown control valves, faucet valves, float valves, double block and bleed valves, HVAC zone valves, or floor drain check valves. Some valves are so specialized that they may have only one or two applications, such as rotary solenoid valves used in excavators, or inverted vent check valve...

Ball valves are mechanical devices that are used to restrict or allow the passage of a fluid (liquid or gas) in a piping system. They are known as quarter-turn valves because a 90o rotation of the handle is all that is required to change the valve position from fully open to fully closed or vice versa.  Types of Ball Valves There are several ways by which ball valves may be characterized. These include by the material used in their fabrication, by the valve body construction, by the stainless steel valves configuration, or by some other parameter such as the fluid handled or nature of the internal design features. The types of ball valves characterized by the valve body material include: Brass ball valves Stainless steel ball valves Plastic ball valves (includes PVC and other polymers such as polypropylene and PVDF) Bronze ball valves Cast iron ball valves Steel ball valves Looked at from the perspective of valve body construction, the types of ball valves include: Split-body ball...

Gate valves are mainly used to block or permit fluid flow through pipes. They are not good at regulating flow for which other valve designs, such as globe valves, are better suited. Ball valves are another on/off valve type unsuited to throttling. Gate valves offer a size advantage over these other types in terms of how much space must be allotted between pipe flanges to accommodate the valve.  Gate valve design Gate valves consist of three major portions, the valve body and seats, the gate (or disc) and stem, and the packing and bonnet. In operation, the body and seats remain stationary while the threaded stem rotates to lift the gate off its seats. Stem rotation is accomplished manually through a handwheel or automatically via a valve actuator. The bonnet houses the disc while the valve is open and provides a location for the stem packing where the stem exits the valve. As with some other valve types, a distinction is made between rising stem and non-rising stem designs. Rising ...

Float valves is used to regulate fluid levels in tanks. In addition to the valve body, a typical float valve has a spherical or similarly shaped hollow ball attached to the valve through a lever or arm. The ball, or "float," rides on, near, or beneath the surface of the fluid and its up and down motion is transferred mechanically to the valve, opening it or closing it, depending on the position of the float with respect to the tank. Float valves are employed to create completely mechanical level control systems.  Valve design Float valves can be direct-acting, such as those used in toilet tanks, or, in some industrial incarnations, used as pilot valves to direct the operation of larger control valves. Direct-acting valves typically use cylindrical slides or diaphragms for their inlet control/shut-off. These are controlled through the rising and lowering float via a lever, producing a mechanical advantage that holds the valve shut. Old-style toilet fill valves typify this set...

Electrolytic Capacitor An electrolytic capacitor is a polarized capacitor whose anode or positive plate is made of a metal that forms an insulating oxide layer through anodization. Due to their very thin dielectric oxide layer and enlarged anode surface, electrolytic capacitors have a much higher capacitance-voltage (CV) product per unit volume compared to ceramic capacitors or film capacitors. Shenmao Capacitor established in 1970 is an Electrolytic Capacitor manufacturer in designing and manufacturing of a wide range of high quality aluminum electrolytic capacitor, ceramic capacitor and chip type aluminum electrolytic capacitor. Basic of our years-experience and good standing guarantee which we build in our field, we are very glad to offer our customers perfect, suitable goods and soonest, professional service. Looking for the reliable electrolytic capacitor manufacturer, Shenmao Capacitor is your best choice. Aluminum Electrolytic Capacitors An Aluminum Electrolytic Capacito r is ...

The term snap-in capacitor is a result of the lead configuration for this type of aluminum electrolytic capacitor . This style is designed for easy mounting on a printed circuit board.  Snap-in capacitors are used in a wide variety of applications because of the many advantages they provide. The aluminum case is fully insulated. The marking of the polarity makes installation easy. The safety vent on the base provides overload protection. Snap-in solder pins hold this component in place on the PC-board. They are made in many different case sizes. They have a high ripple current capability. These are just some of the reasons that make this style one of the most popular of the aluminum electrolytic capacitors. The reason you should visit Shenmao Capacitor to buy your snap-in capacitors is because you can search for what you need by using a part number, a description or just by using a using our visual search capability to match the picture of the part in stock in Shenmao Capacitor wi...

The Benefits of Smart Locks 1.Keyless entry With smart locks, you'll be able to lock the door and throw away the key. Smart door locks are designed to be convenient but provide extra security key-free entry such as passcodes, fingerprints, and unlocking the door using your smartphone. Your guests will even have easy access to your home when you give them a securely generated passcode specially created for their use. 2.Extra safety and security Thieves will have a harder time cracking your passcodes and breaking through sturdy bump proof structures. They may find it harder to pry your door open than most traditional locks. Most smart door locks even have extra measures to shuffle your code immediately after entry or add extra digits before and after the code. And with your smartphone, you'll always have comfort in knowing who comes and goes with instant mobile notifications. 3.Give A smarter home Smart security system or lights will give you extra control with the touch of a bu...

Compared with traditional mechanical locks, fingerprint locks are more convenience and practicality,so they are increasingly welcomed by the market.However,what is fingerprint lock,how to determine the quality of fingerprint lock?What is the security of the fingerprint lock? What is a fingerprint lock? Simple analysis,fingerprint lock is the use of fingerprint recognition,to achieve the purpose of unlocking. What is the composition and principle of fingerprint lock? The fingerprint lock has two major core components:the identification module and the chip.The principle is that when our fingerprint is pressed on the identification module,after recognizes,it will send the fingerprint to the chip to judge whether it is the owner's fingerprint.If the fingerprint is right,it will send an unlock command,or,it will refuse to open the door. Optical Fingerprint Collector: Identify your fingerprint by mirror refraction.We can understand it as taking a picture to see the fingerprint. The main...