Introducing the QMB Series Explosion-proof Valve Electric Actuator, meticulously designed for the dynamic demands of the Coal Mining Industry. Harnessing cutting-edge technology, this actuator guarantees robust and reliable performance, ensuring both safety and efficiency in the harshest of environments.
1 Overview
The QMB mining explosion-proof small valve electric device is meticulously crafted for the rigorous demands of coal industry applications. This versatile actuator excels in the precise control of ball valves, butterfly valves, and more. When paired with high-pressure, small-caliber specialized valves, it ensures optimal performance in coal mine fire safety, dust suppression, and the automation of underground central pump systems, including jet and vacuum pumps.
Our QMB valve electric device stands out for its compact design and lightweight construction. Seamlessly integrating with DCS systems, it facilitates efficient and reliable automatic control.
2. Classification
Available in various types: Basic, Intelligent, Explosion-Proof Basic, and Explosion-Proof Intelligent, each tailored to meet specific operational needs.
3. Working environment and main technical conditions
(1) Power supply: Standard three-phase AC380V, 50Hz;
For flexibility, optional power supplies include: AC400V, 415V, 660V, and dual frequencies of 50Hz or 60Hz.
Also adaptable for Single-phase AC220V, 110V with 50Hz or 60Hz options.
Additionally, supports DC power at 24V, 48V, and 84V.
(2) Ambient temperature: Standard range of -20ºC to +60ºC;Extended range available from -40ºC to +70ºC for demanding conditions.
(3) Relative humidity: Efficient operation up to 95% humidity at 25°C, ensuring robust performance.Adapts seamlessly to varying humidity conditions.
(4) Working environment: Ordinary type suits areas free from hazardous and corrosive media;
Explosion-proof model (ExdIIBT4) designed for environments with IIA and IIB gas mixtures, groups T1-T4, ensuring utmost safety.
(5) Protection level: IP65, IP67, and customizable IP68 for enhanced protection under special orders.
(6) The motor is engineered for intermittent use: Standard operation time of 10 minutes, extendable to 15-30 minutes under special conditions, with Class F insulation for durability.
(7) Anti-corrosion coating: Utilizes a high-temperature electrostatic spray of anti-corrosion epoxy plastic powder, offering robust long-term protection.
(8) Main functional features of intelligent electric actuators
Engineered with a mechatronic design, these actuators are compact and lightweight.
Incorporates a digital integrated chip, delivering multifaceted functionality and superior precision.
Boasts a non-intrusive design, allowing parameter adjustments and debugging via knobs or infrared remote, all without opening the enclosure, for quick, secure operations.
Equipped with an absolute encoder for stroke displacement, ensuring valve position integrity and strong anti-interference, with high accuracy and extended lifespan.
LCD display available in both Chinese and English, enhancing usability.
Features protective functions such as travel limit, torque protection, stall alarm, overheat protection, signal failure protection, power phase loss, and automatic phase sequence correction for comprehensive safeguarding.
Intelligent types encompass Intelligent Switch, Intelligent Adjustment, and Advanced Intelligent versions, catering to diverse control needs.
(9) Intelligent switch type input signal: Accepts 24VDC pulse or level signals for versatile integration.
Output signal: Provides relay output with contact capacity rated at 5A for 250VAC or 30VDC.
Output position analog signal: Delivers 4-20mA for precise feedback.
Intelligent regulation supports analog input signals: 4-20mA for seamless control.
Analog output signal: Matches input with 4-20mA output.
Switch input signal: Compatible with 24VDC pulse or level signal for efficient operation.
Switching output signal: Our innovative actuator features a robust relay output with a contact rated capacity of 5A, 250VAC, and 5A, 30VDC, ensuring reliable performance and safety in high-demand environments.
Basic error: ≤1 - Experience precision and accuracy with a basic error margin of less than or equal to 1. Our technology guarantees exactitude you can count on.
Our advanced intelligent type is designed to elevate your operational capabilities. It includes support for ESD emergency override protection, seamless bus communication, intuitive Bluetooth connectivity, and sophisticated wireless control, among other groundbreaking features.
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. QMB Size and Connection Dimensions
QMB3.5/5
QMB9/15/25
6. QMB Flange Connection Dimensions
QMB3.5/5
| Flange |
Suggested
Actuator |
d3 |
n-d4 |
d7 |
H |
h1 |
| F05 |
QMB3.5
QMB5 |
50 |
4-M6 |
11x11 |
16 |
1 |
QMB9/15/25
| 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: QMB9/15/25 are all equipped with F07 as standard, ensuring optimal compatibility and seamless integration for your needs.
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
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