Delve into the realm of superior valve control with our QMB Series Explosion-proof Valve Electric Actuator, specifically engineered for the rigorous demands of the Coal Mining Industry. Experience unparalleled reliability and safety with this expertly crafted solution, ensuring optimal performance in even the most challenging environments.
1 Overview
The QMB mining explosion-proof small valve electric device by Changzhou Xinneng Automatic Control Equipment Co., Ltd is meticulously engineered for coal-specific environments. This robust device is your go-to solution for managing ball valves, butterfly valves, and other critical valve systems. When coupled with high-pressure, small-caliber special valves, it becomes ideal for ensuring safety and efficiency in coal mine fire protection, dust reduction, and automating control systems in underground central water pump rooms, jet pumps, and vacuum pumps.
The QMB valve electric device shines through its compact and lightweight design, seamlessly integrating with DCS systems for streamlined automatic control.
2. Classification
Delve into a diverse range of classifications that include the Basic type, Intelligent type, Explosion-proof basic type, and Explosion-proof intelligent type, each tailored to meet specific operational requirements.
3. Working environment and main technical conditions
(1) Power supply: three-phase AC380V, 50Hz;
For additional convenience, opt for a power supply of three-phase AC400V, 415V, 660V (50Hz, 60Hz)
or delve into single-phase options including AC220V, 110V (50HZ, 60HZ).
DC voltage alternatives include 24V, 48V, and 84V for versatile applications.
(2) Ambient temperature: Maintain operational integrity in environments ranging from -20ºC to +60ºC; with an extended range available from -40ºC to +70ºC for specialized conditions.
(3) Relative humidity: Capable of functioning in humidity levels not exceeding 95% at 25°C, ensuring reliability even in humid settings.
(4) Working environment: The standard type thrives in non-flammable, non-explosive, and non-corrosive environments, while the flameproof variant (ExdIIBT4) is engineered for IIA,
and handles explosive gas mixtures of class IIB, groups T1-T4 with aplomb.
(5) Protection level: Secure your operations with IP65, IP67, or for special orders, the robust IP68 protection.
(6) The motor is designed for short-time duty: boasting a rated operating time of 10 minutes, extendable to 15-30 minutes for specialized orders, with Class F insulation for enhanced safety.
(7) Anti-corrosion coating: Utilizes high-temperature electrostatic spray techniques and anti-corrosion epoxy plastic powder to ensure longevity and durability.
(8) Main functional features of intelligent electric actuators
Experience a mechatronic design that is both compact and lightweight.
Incorporates a digital integrated chip, offering an array of powerful functions with unmatched precision.
With a non-intrusive design, conveniently set parameters and perform debugging using knobs or infrared remote control without opening the box cover, ensuring simple operation with superior sealing.
Utilizes an absolute encoder for stroke displacement to ensure valve position retention, boasting strong anti-interference capabilities, higher precision, and extended service life.
The LCD subtitles cater to both Chinese and English speakers, enhancing accessibility.
Features include travel limit protection, torque protection, stall alarm, overheat protection, signal failure protection, power phase loss protection, and automatic phase sequence identification and correction for comprehensive safeguarding.
Intelligent types span intelligent switch type, intelligent adjustment type, and advanced intelligent type, tailored for nuanced applications.
(9) Intelligent switch type input signal: Handles 24VDC pulse or level signals with ease.
Output signals are delivered through relay output with a contact rated capacity of 5A, 250VAC, or 5A, 30VDC, offering robust performance.
Provides an output position analog signal of 4-20mA for accurate monitoring.
Intelligent regulation accepts an analog input signal of 4-20mA, facilitating precise control.
Offers an analog output signal of 4-20mA to ensure seamless integration.
Switch input signal relies on a 24VDC pulse or level signal, ensuring dependable operation.
Switching Output Signal: The Coal Mine Electric Actuator provides a robust relay output with a contact rated capacity of 5A at 250VAC, and 5A at 30VDC, ensuring dependable performance even under demanding conditions.
Basic Error Specification: ≤1: This signifies outstanding precision, maintaining performance with minimal deviation.
The advanced intelligent type offers an array of features including ESD emergency override protection, seamless bus communication, cutting-edge Bluetooth technology, wireless control, and more, delivering a comprehensive and flexible control solution.
4. QMB Electric Actuator Main Models & Characteristics
| Model |
Torque
(N · m) |
Stem
diameter
(mm) |
Speed Ratio |
Output Speed
(r/min) |
Open/Close
Time
(S) |
Motor Power
(W) |
Motor Currency
(A) |
Weight
(kg) |
| QMB3.5-1.25G |
35 |
11x11 |
46 |
1.25 |
12 |
10 |
0.6 |
8 |
| QMB5-1.25G |
50 |
11x11 |
46 |
1.25 |
12 |
15 |
0.6 |
8 |
| QMB9-0.85G |
90 |
28 |
46 |
0.85 |
18 |
40 |
1 |
20 |
| QMB15-0.6G |
150 |
28 |
46 |
0.6 |
25 |
40 |
1 |
20 |
| QMB25-0.6G |
250 |
28 |
46 |
0.6 |
25 |
60 |
1.2 |
20 |
5. Detailed Overview of QMB Size and Connection Dimensions
QMB3.5/5 - Compact yet powerful, engineered for seamless operation.
QMB9/15/25 - Robust and versatile, designed for extensive applications.
6. Precise QMB Flange Connection Dimensions
QMB3.5/5 - Ensuring precise fit and secure connections.
| Flange |
Suggested
Actuator |
d3 |
n-d4 |
d7 |
H |
h1 |
| F05 |
QMB3.5
QMB5 |
50 |
4-M6 |
11x11 |
16 |
1 |
QMB9/15/25 - Built for durability and adaptability with multiple applications.
| Flange |
Suggested
Actuator |
d1 |
d2
(f8) |
d3 |
n-d4 |
d7 |
H |
h |
h1 |
| Start |
Max |
| F05 |
QMB9 |
65 |
35 |
50 |
4-M6 |
/ |
28 |
40 |
3 |
3 |
| F07 |
QMB9
QMB15
QMB25 |
90 |
55 |
70 |
4-M8 |
/ |
28 |
40 |
3 |
3 |
| F10 |
QMB25 |
125 |
70 |
102 |
4-M10 |
/ |
28 |
40 |
3 |
3 |
Note: All QMB9/15/25 models come standard with the F07 configuration, ensuring compatibility and reliability.
Q1: Do you have any standard international certificates?
*We have ISO9001, ISO14000, CE, UL and other certifications. Our products also have sepcial deisgn patents.
Q2: Are there any special certification requirements for this product?
*There are certification requirements for explosion-proof actuators in China. They must have explosion-proof certificates and production licenses issued by the National Explosion-proof Electrical Inspection Center. By 2020, the production license will be cancelled and converted to 3C certification. Coal mine products have mining product safety mark certificates (referred to as coal safety certification) and mining product explosion-proof certificates. This coal mine certification product is our company's advantage product. At present, in the electric actuator industry, only 6 actuator manufacturers in China have such mining valve actuator certificates. Domestic coal mines must have products with this mining safety certificate to be used on pipelines underground in coal mines. Therefore, compared with other ground products, there will be less competition in the coal mine sector. Now the company's export of coal mine products is also rising year by year.
Q3: If this product can be operated using WiFi, are there any anti-theft wall measures?
*AK smart series has GPRS mobile phone card wireless control function, which is a special optional function with name, password and verification code to ensure security. This function is not widely used in China at present. It will be considered in some special areas where control cables cannot be laid but there is a signal network.
Q4: Does the factory have a CO Form E record?
*Yes
Q5: How long is the warranty period for this product?
*One year based on the date of manufacture.
Q6: How to start calculating the warranty period?
* According to the date of manufacture (the year and month of manufacture are on the product nameplate).
Q7: What are the advantages of your company? (Price, special accessories, product quality)
* The company's main products are electric actuators, which are equipped with valve products. Our company was established for 13 years. We founded the (Changneng) brand electric actuators and later founded the (AUKOMA) brand high-end series electric actuators. After more than ten years of market operation, the product quality and market sales are stable, and we have a certain reputation in the domestic industry. Our brand is medium in China, and our product series is relatively comprehensive. We have Z, Q, CND, AK series products that can compete with domestic first-line products, and AK series products that can replace international brands. There are great advantages in cost performance.
Let's talk about what this electric actuator is used for. The electric actuator controls the opening and closing of the valve, and the valve controls the opening and closing of the pipeline. Valves include manual valves, electric valves, pneumatic valves, electro-hydraulic valves, etc. With the improvement of industrial automation, more and more automatic control valves such as electric valves or pneumatic valves are used on pipelines that originally used manual valves. Electric valves require our electric actuators, which means the actuators are the brains of electric valves. After using electric actuators, the valves can be switched on and off through on-site electric buttons or remote computer systems, thereby controlling the on and off of the pipelines.
Q8: Does the price change every month or is it fixed?
*The price is fixed. Without special reasons such as a sharp increase in raw materials, the price will generally not change.
Q9: Is it in stock or produced after orders? If the production is after the order, how long will it take to produce? Delivery time?
*Export products have different requirements for materials, packaging, etc. They will be produced according to orders.
*Generally, it takes about 10 days for less than 50 units and 20 days for less than 100 units. The production cycle of AK high-end series will be slightly extended.
Q10: What material is this product made of?
*The product has two types of materials: iron shell and aluminum shell. The aluminum shell is small and the small size of the AK intelligent series is aluminum shell, and the conventional model and large size are cast iron. The large size has a large output torque, and the cast iron shell is used because cast iron has a strong pressure bearing capacity.
Q11: Are we currently doing OEM with other brands?
*We do OEM for several domestic units, and we aslo accpet OEM oreders.
Q12: Have we done any relatively large and well-known enterprise projects?
*Our products are used in major domestic steel mills, power plants, water plants (sewage, tap water), coal mine water treatment, coal mine gas extraction, petroleum and petrochemicals, etc.
Q13: Does this product have a service life?
*Yes, the service life is related to the switching frequency of the valve. The valve is installed on the pipeline, and the electric actuator is a device that controls the valve switch. If the valve switching frequency is very high, the actuator will be used more frequently, and the internal gears and turbines, worms, nuts, etc. will have certain wear, but it is much longer than the service life of the valve. Some valves on pipelines need to be replaced after a few years. Generally, the actuator will be replaced at the same time as the valve. At present, our products are used on pipelines, and many actuators from more than 10 years ago are also in normal use.
Q14: Can parts be replaced if the product is damaged?
*It can be replaced. Generally, the limit switch that controls the valve opening and closing is a high-frequency component and may need to be replaced.
Q15: How much does the factory produce per month?
*1,200-1500 sets per month.
Q16: What is the payment methods accepted?
*We accpet TT, Paypal, West Union, World First, Alipay, Wechat Pa
){kind=link}