Model Number: PE-15407
Type: Sex toy for MEN, Sex Enhancer
Material: Silicone+ABS+TPR
Product Name: Penis Vacuum pump
Color: Blue+black
Waterproof: IPX7
Feature: Big Penis pump Enlargement
Wearer: Male
Usage: Sex toys for men’s penis harder and extender
Power supply: 3* AAA batteries( not include battery)
Properties: Vacuum Pump Sex Toy
Net weight: 0.52kg
Packaging Details: Carton box+ color box
Electric Vacuum Pump Penis Enlargement Pump Male Bigger Enhancement Sleeve Extender Penis Pump Sexual Toy Adult Sex Tool for Man Why Choose Us 1. Reach salesperson at your any timeReach salesperson at your any time.2. 100% full inspection is guaranteed before delivery.100% full inspection is guaranteed before delivery.3. All shipment mean convenient here. international express (TNT, UPS, DHL and FedEx), by air and by sea. We always compare at least.4. your packaging discreetyour packaging discreet5. it is mandatory to provide the TAX IDit is mandatory to provide the TAX ID. Your order requirement will be proceed according to the details which you communicated with our sales representative. ENIS EXTENDER This Penis Extender is clinically proven penis enlargement device for men who wish to add a few extra inches to their penis size without pills and penis surgery. Add 2 to 5 cm (0.8″ to 2″) length to your penis!How does it work?It works by applying a constant stretch to the penis over time. This stretching action is a type of tension applied to the penis called “penile traction” which is the very basis behind the science of the extender. The penile traction process is not a painful experience it is a slight gentle tension applied over time. As an extender user, you get to chose how much tension you want to apply to your penis and how many hours you would like to use it.How do I wear it?Wearing the extender is both simple and comfortable. First add the necessary extention bars to accommodate your penis, then insert your penis, and apply the holding band around the head of your penis to hold it in place. Then set the tension level by rotating the adjuster. Specs: Medical Grade Stainless Steel Rods. Body Safe Silicone Straps.Package contains:Penis Extender device1 inches (2.5 cm) rods set2 inches (5.1 cm) rods setSilicone tubeFoam protection PadEnglish User Manual❥Are you still worried about your lack of strength and length? Through a certain period of training, improve the size and increasethe happiness of the couple.❥Now you can be all possible people, and satisfy your partner with this easy to use énhancer, bringing you an unprecedentedfeeling of safety and comfort.❥Encourage the bôdy to produce new tissues by applying continuous and gentle tension on various parts of the body, bringing you anunexpected experience, whether it is physical or psychological enjoyment, you are happy in it, and completely No pressure.❥Clinical trials have shown that when the device is used for 8-10 hours per day for 3-6 months, the body grôws significantly.Since everyone is different, you will find that using it will more or less produce different results.❥Discreet packaging-All items are carefully and privately packaged in an environmentally friendly manner.Easy to clean-great forplay, easy to clean before and after use.Product description✌✌A brave attempt will let you have great self-confidence in future, it will never be too late!Pennis Enlargement Stretcher features: Simple and portable, no visible wear and tear, can walk and exercise.★★Size: as shown★★Material: Medical Grade High Quality PVC★★Net Weight: 380g★★★Note:1. Always clean thoroughly before and after use.2. Warm water and medicinal alcohol can be used to clean the vibrator, warm water is highly recommended3. Naturally air dry and avoid direct sunlight.Feature:Give your restore confidence, self-esteem and enhance your relationships.The pump uses air to increase the size of your penis.The cylinder is attached to a soft rubber sleeve.Simply place this sleeve over your penis then steadily pump by hand.When the bulb is pumped, air is pulled out of the cylinder, creating a vacuum.This vacuum helps draw more blood into the penis, strengthening the tissue and causing an erection.The vacuum expands the tissue and results in an increase in penis size.Easy application allows use in your own home or any private area.All-natural: No medicine, injections or operations.Increase your manhood easily, quickly and painlessly.Clear chamber with measurements so you can see the results.Easy push button purge valve.
| Model Number | PE-15407 |
| Product Name | Penis Pump Enlargement Pump For Penis Pump For Man |
| Material | Food grade silicone + ABS + TPR |
| Color | white |
| SIze | Tube: 200*70 mm, Length290 x Diameter70.5mm (D*L) |
| Function | Penis Enlargement Extender Stretcher |
| Charging Method | 3* AAA batteries( not include battery) |
| Usage Time | 3-6 hours Per a Day |
| Package | Color box 26*12*12cm |
| Another Name | penis enlargement kit |
| Net Weight | 510g |
Types of vacuum pumps
A vacuum pump is a device that draws gas molecules from a sealed volume and maintains a partial vacuum. Its job is to create a vacuum in a volume, usually one of several. There are several types of vacuum pumps, such as root pumps, diaphragm pumps, rotary piston pumps, and self-priming centrifugal pumps.
The diaphragm pump is a dry positive displacement vacuum pump
Diaphragm pumps are a versatile type of vacuum pump. They can be installed in a variety of scenarios including container emptying, positive suction, and simultaneous fluid mixing. Their performance depends on the stiffness and durability of the diaphragm, which in turn depends on the material.
They have good performance when running in dry mode. Diaphragm pumps work very similarly to the human heart, which is why they are often used to create artificial hearts. In addition, the diaphragm pump is self-priming and has high efficiency. They are also capable of handling the most viscous liquids and are used in almost all industries.
However, this type of pump has several disadvantages. One of them is that they are difficult to restart after a power outage. Another disadvantage is that they can generate a lot of heat. Fortunately, this heat is carried away by airflow. However, this heat builds up in the multistage pump. If this happens, the diaphragm or motor may be damaged. Diaphragm pumps operating in two or more stages should be fitted with solenoid valves to maintain vacuum stability.
Diaphragm pumps are a good choice for drying processes where hygiene is important. These pumps have check valves and rubber or Teflon diaphragms. Diaphragm pumps are also ideal for high viscosity applications where shear sensitivity is important. 
Roots pumps are dry method centrifugal pumps
Roots pumps use a vane rotor pump with two counter-rotating vanes that move in opposite directions to move the gas. They are often the first choice for high-throughput process applications. Depending on the size and number of blades, they can withstand up to 10 Torr.
Centrifugal pumps have several advantages, including the ability to handle corrosive fluids and high temperatures. However, when choosing a pump, it is essential to choose a reputable manufacturer. These companies will be able to advise you on the best pump design for your needs and provide excellent after-sales support. Roots pumps can be used in a wide range of industrial applications including chemical, food, and biotechnology.
The Roots pump is a dry centrifugal pump whose geometry enables it to achieve high compression ratios. The screw rotors are synchronized by a set of timing gears that allow gas to pass in both directions and create a compressed state in the chamber. The pre-compressed gas is discharged through a pressure connection and cooled with water. Some pumps are also able to accept additional cooling gas, but this should be done with caution.
The size of the impeller plays an important role in determining the pump head. The impeller diameter determines how high the pump can lift the liquid. Impeller speed also affects the head. Since the head is proportional to the specific gravity of the liquid, the available suction pressure will be proportional to the density of the liquid. The density of water is about 1.2 kg/m3, and the suction pressure of the centrifugal pump is not enough to lift the water.
The rotary vane pump is a self-priming centrifugal pump
A rotary vane pump is a centrifugal pump with a circular pump head and a cycloid cam that supports the rotor. The rotor is close to the cam wall, and two side plates seal the rotor. Vanes in vane pumps are installed in these cavities, and the rotor rotates at high speed, pushing fluid in and out of the pump. The pump offers several advantages, including a reversible design and the ability to handle a wide variety of clean fluids.
Agknx Pumps manufactures a wide range of vane pumps that combine high performance, low cost, and easy maintenance. These pumps handle medium to high viscosity liquids up to 500 degrees Fahrenheit and 200,000 SSU.
The suction side of the rotary vane pump has a discharge port, and the valve prevents the backflow of the discharge air. When the maximum pressure is reached, the outlet valve closes to prevent the backflow of exhaust gas. The mechanical separation step separates the oil from the gas in the pump circuit and returns the remaining oil particles to the sump. The float valve then reintroduces these oil particles into the oil circuit of the pump. The gas produced is almost oil-free and can be blown out of a pipe or hose.
Rotary vane pumps are self-priming positive displacement pumps commonly used in hydraulic, aeration, and vacuum systems. Unlike gear pumps, rotary vane pumps can maintain high-pressure levels while using relatively low suction pressures. The pump is also very effective when pumping viscous or high-viscosity liquids. 
Rotary piston pumps are dry method positive displacement pumps
Rotary piston pumps are dry positive displacement pumps designed to deliver high-viscosity fluids. They are capable of pumping a variety of liquids and can run dry without damaging the liquid. Rotary piston pumps are available in a variety of designs. Some are single shafts, some are two shafts and four bearings.
Positive displacement pumps operate slower than centrifugal pumps. This feature makes the positive displacement pump more sensitive to wear. Piston and plunger reciprocating pumps are particularly prone to wear. For more demanding applications, progressive cavity, diaphragm or lobe pumps may be a better choice.
Positive displacement pumps are typically used to pump high-viscosity fluids. This is because the pump relies on a mechanical seal between the rotating elements and the pump casing. As a result, when fluids have low viscosity, their performance is limited. Additionally, low viscosity fluids can cause valve slippage.
These pumps have a piston/plunger arrangement using stainless steel rotors. Piston/piston pumps have two cavities on the suction side. The fluid then flows from one chamber to the other through a helical motion. This results in very low shear and pulsation rates. The pump is usually installed in a cylindrical housing.
Rotary vane pump corrosion resistance
Rotary vane vacuum pumps are designed for use in a variety of industries. They feature plasma-treated corrosion-resistant parts and anti-suck-back valves to help reduce the number of corrosive vapors entering the pump. These pumps are commonly used in freeze dryers, vacuum ovens, and degassing processes. The high flow rates they provide in their working vacuum allow them to speed up processes and reduce the time it takes to run them. Plus, they have energy-efficient motors and silent volume. <br/While rotary vane vacuum pumps are relatively corrosion resistant, they should not be used for aggressive chemicals. For these chemicals, the most suitable pump is the chemical mixing pump, which combines two types of pumps to improve corrosion resistance. If the application requires a more powerful pump, a progressive cavity pump (eg VACUU*PURE 10C) is suitable.
Oil seals used in rotary vane pumps are important to pump performance. The oil seal prevents corrosion of the aluminum parts of the rotary vane pump and prolongs the service life. Most rotary vane vacuum pumps have a standard set of components, although each component may have different oil seals.
Rotary vane vacuum pumps are the most common type of positive displacement pump. They provide quiet operation and long service life. They are also reliable and inexpensive and can be used in a variety of applications. 
Roots pumps are primarily used as a vacuum booster
Root vacuum pumps are mainly used as vacuum boosters in industrial applications. They need a thorough understanding of operating principles and proper maintenance to function properly. This course is an introduction to Roots vacuum pumps, covering topics such as pump principles, multi-stage pumps, temperature effects, gas cooling, and maintenance.
Roots pumps have many advantages, including compact and quiet operation. They do not generate particles and have a long service life. They also don’t require oil and have a small footprint. However, Roots pumps have several disadvantages, including relatively high maintenance costs and low pumping speeds near atmospheric pressure.
Root vacuum pumps are often used with rotary vane vacuum pumps. They work on the same principle, the air enters a conveying unit formed by two rolling pistons in the housing. The piston heads are separated from each other, and the air passes through the unit without being reduced until it is discharged. When the air in the next unit reaches a higher absolute pressure, it is expelled from the last unit.
Roots pumps can be classified as sheathed or sealed. Roots pumps with sealed motors are suitable for pumping toxic gases. They have less clearance between the stator and motor rotor and have a sealed tank.
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