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China manufacturer Hot Sale Electric Diving Breathing Scuba High Pressure Air Compressor Rkh-265e air compressor parts

Product Description


Product Description

Hot Sale Electric Diving Breathing Scuba High Pressure Air Compressor RKH-265E

30 MPa RK100P Fire Air Respirator Inflator Pump
Four-stage compression, air-cooled, piston air compressor
Equipped with high-strength nylon cooling fan
The pressure of the high-pressure safety valve is freely regulated to ensure absolute safety in use
High-tech treatment of wear-resistant CMC alloy cylinders, pistons, crankshafts and other components to ensure long-term load requirements
Assemble manual blowdown valve
The drive mode includes 380V/220V motor (explosion-proof motor), gasoline engine (for field use without power supply) for users to choose freely
Designed with a set of inflation valve, connector and inflation tube
Equipped with a shock-proof pressure gauge, the purification system is activated carbon and molecular sieve to ensure that the gas is pure, high-quality and safe.

Technical parameter

Model RKH-265E
Flow rate 265 L/min
Inlet pressure atmosphere
Outlet pressure 200bar/3000psi
Max working pressure 300bar/4500psi
Electric Motor/Petrol engine Motor 5.5kw 7.5hp
Driven method Belt
Cooling method Air
Oil/moisture separator 1 after last stage
Filtration Activated carbon and molecular sieve filtration
Suction filter 2 CHINAMFG paper – 25 CHINAMFG polyester
Accessories 2pcs of 1meter filling hoses
1 set spare parts
Noise level ≤ 80dB(A)
Dimension 960*570*700mm
Net Weight 173kg

Application industry

It is mainly used for air tightness inspection of natural gas cylinders, pressure reducing regulators, mixers (or natural gas injection devices) in compressed natural gas (CNG) automotive fuel systems, and air tightness of various high-pressure gas cylinders, valves and pipelines. It can be widely used in any field that requires large displacement and high pressure breathing air.


Packaging & Shipping

Company Profile



Payment and delivery


Q1. Are you trading company or manufacture ?

A: We are professional manufacture of screw air compressor of HangZhou,ZheJiang ,China. More than 18 years of experience in air compressor manufacturing.

Q2. How long is the delivery time ?
A: For standard voltage ,15 working days. Non-standard ,please contact our sales.


Q3. What’s payment term ?
A: T/T, L/C, D/P, Western Union, Paypal, Credit Card, and etc. Also we could accept USD, RMB, Euro and other currency.


Q4. How about your after-sales service ?
A: 1.Provide customers with installation and commissioning online instructions.
2. Well-trained engineers available to overseas service.
3.CHINAMFG agents and after service avaiable.arrange our engineers to help you training and installation.


Q5. How about your warranty?
A: One year for the whole machine and 2 years for screw air end, except consumable spare parts.


Q6. Do you have any certificate ?
A: Yes, per different customer’s market need ,we can offer CE ,ISO etc certificate.


Q7. What about the maintenance ?
A: First maintenance need to be done after 500Hours, and then every 2000-3000 hours to do the normal maintenance, and consider the actual environment.


Q8. How do you control quality ?
A: 1. The raw materials are strictly inspected
2. Some key parts are imported from overseas
3. Each compressor must pass at least 5 hours of continuous testing before leaving the factory.


Q9. Do you offer OEM service ?
A: Yes.Both OEM & ODM service can be accepted.


Q10.How long could your air compressor be used?
A: Generally, more than 10 years.

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After-sales Service: Online Support
Warranty: 24months
Lubrication Style: Oil-free


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Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


Initial Payment

Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

air compressor

How Do You Troubleshoot Common Issues with Gas Air Compressors?

Troubleshooting common issues with gas air compressors involves identifying and addressing potential problems that may arise during operation. Here’s a detailed explanation of the troubleshooting process:

1. Start with Safety Precautions:

Prior to troubleshooting, ensure that the gas air compressor is turned off and disconnected from the power source. Follow proper safety procedures, such as wearing appropriate personal protective equipment (PPE), to avoid accidents or injuries.

2. Check Power Supply and Connections:

Verify that the compressor is receiving power and that all electrical connections are secure. Inspect the power cord, plug, and any switches or controls to ensure they are functioning properly. If the compressor is equipped with a battery, check its charge level and connections.

3. Check Fuel Supply:

For gas air compressors that use gasoline or propane, ensure that there is an adequate fuel supply. Check the fuel tank level and verify that the fuel shut-off valve is open. If the compressor has been sitting idle for an extended period, old or stale fuel may cause starting issues. Consider draining and replacing the fuel if necessary.

4. Inspect Air Filters:

Dirty or clogged air filters can restrict airflow and affect the compressor’s performance. Check the intake air filters and clean or replace them as needed. Clogged filters can be cleaned with compressed air or washed with mild detergent and water, depending on the type of filter.

5. Check Oil Level and Quality:

If the gas air compressor has an engine with an oil reservoir, verify the oil level using the dipstick or oil level indicator. Insufficient oil can lead to engine damage or poor performance. Additionally, check the oil quality to ensure it is clean and within the recommended viscosity range. If needed, change the oil following the manufacturer’s guidelines.

6. Inspect Spark Plug:

If the gas air compressor uses a spark plug ignition system, inspect the spark plug for signs of damage or fouling. Clean or replace the spark plug if necessary, following the manufacturer’s recommendations for gap setting and torque.

7. Check Belts and Pulleys:

Inspect the belts and pulleys that drive the compressor pump. Loose or worn belts can cause slippage and affect the compressor’s performance. Tighten or replace any damaged belts, and ensure that the pulleys are properly aligned.

8. Listen for Unusual Noises:

During operation, listen for any unusual or excessive noises, such as grinding, rattling, or squealing sounds. Unusual noises could indicate mechanical issues, loose components, or improper lubrication. If identified, consult the compressor’s manual or contact a qualified technician for further inspection and repair.

9. Consult the Owner’s Manual:

If troubleshooting steps do not resolve the issue, refer to the compressor’s owner’s manual for specific troubleshooting guidance. The manual may provide additional troubleshooting steps, diagnostic charts, or recommended maintenance procedures.

10. Seek Professional Assistance:

If the issue persists or if you are unsure about performing further troubleshooting steps, it is recommended to seek assistance from a qualified technician or contact the manufacturer’s customer support for guidance.

Remember to always prioritize safety and follow proper maintenance practices to prevent issues and ensure the reliable performance of the gas air compressor.

air compressor

What Is the Impact of Altitude on Gas Air Compressor Performance?

Altitude can have a significant impact on the performance of gas air compressors. Here’s a detailed explanation:

1. Decreased Air Density:

As altitude increases, the air density decreases. This reduction in air density affects the performance of gas air compressors, primarily because compressors rely on the intake of ambient air to generate compressed air. With lower air density at higher altitudes, the compressor’s ability to draw in a sufficient volume of air is reduced.

2. Reduced Compressor Output:

The decrease in air density directly affects the compressor’s output. Gas air compressors may experience a decrease in their maximum airflow and pressure capabilities at higher altitudes. This reduction in output can impact the compressor’s efficiency and its ability to deliver the required compressed air for various applications.

3. Increased Compressor Workload:

At higher altitudes, gas air compressors need to work harder to maintain the desired level of compressed air output. The reduced air density means the compressor must compress a larger volume of air to achieve the same pressure as it would at lower altitudes. This increased workload can lead to higher energy consumption, increased wear and tear on the compressor components, and potentially decreased overall performance and lifespan.

4. Engine Power Loss:

If the gas air compressor is powered by an internal combustion engine (such as gasoline or diesel), altitude can also impact the engine’s performance. As the air density decreases, the engine may experience a power loss due to reduced oxygen availability for combustion. This can result in reduced engine horsepower and torque, affecting the compressor’s ability to generate compressed air.

5. Considerations for Proper Sizing:

When selecting a gas air compressor for use at higher altitudes, it is crucial to consider the specific altitude conditions and adjust the compressor’s size and capacity accordingly. Choosing a compressor with a higher airflow and pressure rating than required at sea level can help compensate for the reduced performance at higher altitudes.

6. Maintenance and Adjustments:

Regular maintenance and adjustments are necessary to optimize the performance of gas air compressors operating at higher altitudes. This includes monitoring and adjusting the compressor’s intake systems, fuel-to-air ratio, and ignition timing to account for the reduced air density and maintain proper combustion efficiency.

In summary, altitude has a notable impact on the performance of gas air compressors. The decrease in air density at higher altitudes leads to reduced compressor output, increased compressor workload, potential engine power loss, and considerations for proper sizing and maintenance. Understanding these effects is crucial for selecting and operating gas air compressors effectively in various altitude conditions.

air compressor

Are There Different Types of Gas Air Compressors Available?

Yes, there are different types of gas air compressors available, each designed to suit specific applications and requirements. These different types vary in terms of design, power source, configuration, and intended use. Here’s a detailed explanation of the various types of gas air compressors:

1. Reciprocating Gas Air Compressors:

Reciprocating gas air compressors, also known as piston compressors, use a reciprocating motion of one or more pistons to compress the air. These compressors are commonly used for small to medium-scale applications and are available in both single-stage and two-stage configurations. Single-stage compressors compress the air in a single stroke, while two-stage compressors use an additional cylinder for further compression, resulting in higher pressures.

2. Rotary Screw Gas Air Compressors:

Rotary screw gas air compressors utilize two interlocking helical screws to compress the air. These compressors are known for their continuous and efficient operation, making them suitable for demanding industrial applications. They are often used in industries such as manufacturing, construction, and automotive where a constant supply of compressed air is required.

3. Rotary Vane Gas Air Compressors:

Rotary vane gas air compressors use a rotor with sliding vanes to compress the air. As the rotor rotates, the vanes slide in and out, creating compression chambers that compress the air. These compressors are compact, reliable, and often used for smaller-scale applications or in situations where space is limited.

4. Centrifugal Gas Air Compressors:

Centrifugal gas air compressors operate by accelerating the air using a high-speed impeller. The accelerated air is then redirected into a diffuser, which converts the velocity energy into pressure energy. These compressors are commonly used for large-scale applications requiring high volumes of compressed air, such as in power plants, refineries, or chemical processing industries.

5. Oil-Free Gas Air Compressors:

Oil-free gas air compressors are designed to provide clean, oil-free compressed air. They feature special sealing mechanisms and materials to prevent oil contamination in the compressed air. These compressors are commonly used in industries where oil-free air is essential, such as food and beverage processing, pharmaceuticals, electronics manufacturing, and painting applications.

6. Portable Gas Air Compressors:

Portable gas air compressors are specifically designed for mobility and ease of transportation. These compressors often feature wheels, handles, or trailers for convenient movement. They are commonly used in construction sites, remote job locations, outdoor events, or other situations where compressed air is needed at different locations.

7. High-Pressure Gas Air Compressors:

High-pressure gas air compressors are designed to generate compressed air at elevated pressures. These compressors are used in applications that require air pressure higher than the standard range, such as in diving operations, breathing air systems, or specialized industrial processes.

8. Biogas Air Compressors:

Biogas air compressors are specifically designed to compress biogas, which is generated from the decomposition of organic matter. These compressors are used in biogas production facilities, landfills, wastewater treatment plants, or agricultural operations where biogas is produced and utilized as an energy source.

These are just a few examples of the different types of gas air compressors available. Each type has its own advantages and is suitable for specific applications based on factors such as required airflow, pressure, mobility, oil-free operation, and environmental considerations. It’s important to choose the appropriate type of gas air compressor based on the specific needs of the application to ensure optimal performance and efficiency.

China manufacturer Hot Sale Electric Diving Breathing Scuba High Pressure Air Compressor Rkh-265e   air compressor partsChina manufacturer Hot Sale Electric Diving Breathing Scuba High Pressure Air Compressor Rkh-265e   air compressor parts
editor by CX 2024-03-29

China OEM Electric Scuba Diving Breathing Air Compressor near me supplier

Product Description

Electrical Scuba Diving Respiratory Air Compressor

Solution Description:

Compressed air fill pump parameters:

Product: MC

Variety: hearth breathing gas

Free of charge air output at rated stress (L/min): eighty

Optimum or rated working stress (Bar g): 330

Drive power: (kW) 2.two

Drive method: single-phase motor

Duration (mm): 650

Width (mm): 390

Peak (mm): 350

Bodyweight (Kg): 39

CZPT program: air cooled

At rated operating strain: 330 Bar g,

Exhaust quantity: 80L/min

Simply click electrical power: (kW) 2.2

Voltage: 220V

Compressed air loaded pump composition:

One-stage motor travel, air-cooled, four-phase, four-cylinder, all-stainless metal intermediate and last cooler

Lubrication: Splash lubrication

Normal scope of offer

Tough spray all metal foundation with handle

two.2KW single-section motor drive

Oil drinking water separator (manual sewage)

Activated carbon, molecular sieve, carbon monoxide absorbing molecules constitute a triple respiration air CZPT method

Reusable cartridges for straightforward and practical trade

Final protection valve

Intake filter

Shockproof stress gauge ~5800psi/400bar

Operation Handbook Spare Areas Manual (optional Chinese or English)

Filling valve

One particular year high quality assurance

Packaging & Shipping

Company Info

How to Pick the Appropriate Air Compressor

An air compressor utilizes pressurized air to electricity a assortment of resources. They are most commonly employed to energy nailers and influence wrenches. Other well-known uses for air compressors incorporate paint sprayers and affect wrenches. While all air compressors have the very same simple construction, their specialty differs. In the end, their distinctions occur down to the volume of air they can push. Read through on for details on every sort of air compressor. These equipment are wonderful for a lot of different needs, and choosing the right air compressor is dependent on your specific requirements.

Electrical motor

Whilst getting an electric powered motor for air compressor, compatibility is a essential aspect. Not all motors operate with the exact same sort of air compressor, so it’s critical to verify the manufacturer’s guidelines just before purchasing. By undertaking this, you can keep away from wasting money on an incompatible motor. Yet another crucial thing to consider is velocity. A motor’s velocity is its fee of rotation, measured in revolutions for each minute. It is critical that you purchase a motor with sufficient speed to meet the demands of your air compressor.
Usually, an electrical motor for air compressor is 1.5 hp. It is perfect for use with health care products and metal-reducing machines. It also performs effectively below ongoing procedure and gives a large efficiency and vitality-conserving efficiency. Furthermore, it features an appealing value, producing it a good option for a wide range of purposes. If you are hunting for a motor for an air compressor, appear no even more than a ZYS collection.
A motor’s safety class indicates how the motor will work. Security courses are specified by the IEC 60034-5. These are stated with two digits and symbolize the safety against reliable objects and h2o. For illustration, an IP23 score indicates that the motor will be safeguarded from strong objects, even though IP54 implies that it will protect from dust and drinking water sprayed from all instructions. It is crucial to decide on a motor with the proper protection course for your air compressor.
When deciding on an electric motor, you must contemplate whether or not it truly is suitable with the model of air compressor. Some might be suitable, even though others may require advanced electronics skills to restore. Nevertheless, most air compressors are coated by warranty, so it truly is essential to verify with the maker if the guarantee is nevertheless in influence before you invest a dime on a replacement. The motor should be replaced if it has unsuccessful to complete as made.

Oil tub

Air compressors call for correct lubrication to function successfully. The piston must attract air with nominal friction. Depending on their style, air compressors can both be oil-lubricated or oil-cost-free. The previous employs oil to lessen piston friction, although the latter splashes it on the cylinder bearings and partitions. This kind of air compressors are typically recognized as oil-flooded air compressors. In purchase to preserve their oil baths clear, they are recommended for use in spots with substantial dust levels.

Start off/cease control

An air compressor can be controlled by a commence/stop management. This type of handle sends a signal to the primary motor that activates the compressor when the desire for air falls below a preset restrict. This manage technique is powerful for scaled-down air compressors and can be useful for lowering power expenses. Start off/quit management is most powerful in apps the place air pressure does not alter usually and exactly where the compressor is not needed to operate continually.
To troubleshoot this difficulty, you need to have to check the power provide of your compressor. To check out the source facet, use a voltage keep an eye on to decide if electrical power is flowing to the compressor. Make certain that the electrical power offer to the compressor is regular and steady at all moments. If it fluctuates, the compressor might not commence or stop as predicted. If you cannot discover the issue with the air compressor power offer, it might be time to exchange it.
In addition to the start off/end management, you may possibly want to purchase further air receivers for your air compressor. These can boost the capability of air stored and lessen the number of instances it starts and stops. Yet another way to reduce the number of commences for every hour is to include far more air receivers. Then, you can adjust the management to match your specifications. You can also install a stress gauge that displays the compressor’s overall performance.
Start/end control for air compressors can be complex, but the basic parts are comparatively easy to comprehend. One way to check them is to switch the compressor on or off. It is normally positioned on the exterior of the motor. If you’re unsure of the place of these elements, examine the capacitors and make confident that the air compressor is not operating even though you’re not making use of it. If it does, attempt to remove the capacitor.
Variable displacement manage is another way to modify the sum of air flowing into the compressor. By controlling the quantity of air, the handle can hold off the use of further compressors until a lot more essential air is obtainable. In addition to this, the system can also check the strength utilized in the compressor. This handle method can outcome in considerable strength financial savings. You can even conserve on the quantity of electric power by using variable displacement handle. It is important for productive compressed air methods.

Variable velocity push

A VFD, or variable frequency drive, is a variety of electric powered motor that adjusts its pace to match the need for air. It is an effective way to reduce energy charges and boost technique dependability. In reality, studies have demonstrated that a twenty% reduction in motor velocity can conserve up to fifty% of power. In addition, a VFD can monitor added variables this kind of as compressor oil force and motor temperature. By reducing guide checks, a VFD will improve the overall performance of the software and reduce functioning costs.
In addition to decreasing strength charges, variable-pace drives also improve efficiency. A variable-speed air compressor reduces the danger of system leaks by thirty percent. It also decreases the chance of technique leaks by reducing stress in the system. Simply because of these advantages, many governments are selling this technology in their industries. Numerous even offer incentives to support organizations upgrade to variable-velocity drives. Consequently, the variable-velocity generate can benefit several air compressor installations.
One significant reward of a variable-pace travel is its ability to optimize strength use. Variable frequency drives are ready to ramp up and down to match the need for air. The purpose is to improve the pressure and flow in the technique so that the ideal “lifeless band” takes place amongst forty % and eighty per cent of complete load. A variable-pace compressor will also improve power performance since of its programmability.
A variable-pace air compressor can also be used to management the volume of air that is compressed by the technique. This feature adjusts the frequency of power supplied to the motor primarily based on the need. If the demand for air is low, the frequency of the motor will minimize to conserve power. On the other hand, if there is an excess need for air, the variable-speed compressor will increase its velocity. In addition, this variety of air compressor is a lot more efficient than its fastened-speed counterpart.
A VFD has many rewards for compressed air methods. 1st, it helps stabilize the pressure in the pipe network, thereby decreasing the power losses owing to upstream strain. It also aids decrease the electrical power consumption caused by fluctuations in upward stress. Its advantages are also considerably-achieving. And as lengthy as the air stress and air supply is effectively sized, a VFD will assist improve the performance of compressed air methods.

China OEM Electric Scuba Diving Breathing Air Compressor     near me supplier China OEM Electric Scuba Diving Breathing Air Compressor     near me supplier