High-Performance Gas Roots Flowmeter, 24VDC Power, Aluminum Body

• Customization: Available
• Warranty: 15 Months
• Accuracy: 1.5%,1%
• Model NO.: HL-LLQ
• Main Application: Nature Gas
• Size: DN25-DN150
• Sensor: Tube/Flange
• Application: Energy Metering
• Type: Turbine Flow Meter
• Measuring Media: Gas
• Measuring Principle: Electrical Principles
• Measurement Object: Closed Pipeline
• Certification: CE, ISO
• Output Type: RS485, Pulse and 4-20mA
• Body Material: Aluminum Alloy
• Power Supply: 24VDC, 3.6VDC Battery
• Transport Package: Wooden Box Package or Carbon
• Trademark: HuaLiu
• Origin: China
• HS Code: 9026100000
• Production Capacity: 5000pieces/Year

Product Description

SUMMARY

Gas Roots Flowmeter

The Gas Roots flowmeter is a premier gas monitoring and measuring instrument renowned for its unmatched accuracy, unwavering reliability, and extensive range.
The Intelligent Gas Roots Flowmeter is a cutting-edge solution that amalgamates flow, temperature, and pressure sensors with intelligent instrumentation, all built upon the classic Roots flowmeter design. This sophisticated device is perfect for accurately measuring non-corrosive gases such as natural gas, city gas, propane, nitrogen, and industrial inert gases.

CHARACTERISTIC

1. Impressive Range:
The device boasts a maximum range capable of reaching an impressive 1:216, adapting to varying specifications with ease.
2. Ultra-Sensitive Low Starting Flow:
3. Exceptional Precision and Consistency:
The flowmeter maintains long-term accuracy that remains unaffected by the medium, ensuring stable performance over prolonged periods.
Minimal Pressure Loss:
4. Depending on the specifications, the pressure loss is meticulously controlled between 0.08kPa and 0.58kPa. The device features high integration and low power consumption, thanks to advanced microcomputer technology and high-performance integrated chips, delivering robust and superior performance.
Streamlined and Compact Design:
5. The inclusion of built-in pressure, temperature, and flow sensors contributes to a sleek and compact structure. Digital Sensors for Precision
6. The digital temperature and pressure sensors are independently calibrated and verified, ensuring ease of replacement, maintenance, and utilization.

7. Advanced Sectional Correction:
Leveraging the flow frequency signal, the instrument coefficient is automatically adjusted across nine sections for precise linear correction, enhancing the instrument's wide-range accuracy.
8. Robust Data Storage Capabilities:
Equipped with an E2PROM data storage chip, it securely stores user and manufacturer parameters. The timely data-saving feature prevents data loss during power failures, with internal parameters preserved permanently in such events.
9. Comprehensive Output Options:
The intelligent flowmeter provides essential outputs including base meter pulse, working or standard condition pulse signals, and calibration pulse output. Additionally, it offers a 4~20mA analog signal and RS485 communication to meet user requirements, enabling efficient data traceability management.
10. Seamless Real-time Data Access:
GPRS Real-time Management System:
11. This series features a B-type meter with GPRS transmission capabilities, facilitating online, scheduled, and fixed-point data transmission. It enables monitoring of instrument data, valve control, pipeline pressure, and gas alarms, making it effortless to establish a GPRS wireless network system.

PRINCIPLE

The Intelligent Gas Roots Flowmeter is meticulously crafted with a housing, conjugate rotor, and intelligent flow integrator. A pair of precisely calibrated conjugate rotors within the metering chamber maintains optimal relative positions due to the pressure differential between inlet and outlet (P_in > P_out). The design ensures perfect working clearances between rotors, casing, and side plates, achieving a continuous non-contact seal. Each rotor revolution delivers four times the effective volume of gas from the metering chamber.

TECHNICAL PARAMETER

Nominal diameter(mm)	range ratio	Flow range(m³/h)	starting flow(m³/h)	Pressure loss Pa at Qmax	Maximum working pressure MPa	Nominal pressure MPa	material
25	20:1	1-20	0.07	110	0.4	1.6	aluminum cast iron
40	40:1	1-40	0.06	140
50	30:1	2-60	0.07	120
50	40:1	2-80	0.07	160
80	35:1	3-100	0.06	170
80	50:1	3-150	0.05	150
80	50:1	4-200	0.15	180	0.4 0.6
100	80:1	4-300	0.12	200
100	90:1	5-450	0.11	400
150	80:1	8-650	0.65	560
150	90:1	11-1100	0.8	600

Complete Qualifications

Fully Certified and Trusted

Our esteemed certifications reflect our robust capabilities and trustworthiness. In 2019, we proudly attained the 'National High-tech Enterprise' status. By 2023, we earned the 'Special Equipment Manufacturing Production License.' Our extensive certifications include ISO Quality, Environmental, and Employee Safety System Certifications, Product Measuring Apparatus Type Approval Certificate, Explosion-proof and Intrinsically Safe Certificates for all product lines, SIL Safety Certificate, CE Certificate, and numerous Invention and Utility Model Patent Certificates.

FAQ

Q: How do I select the right flow meter for my application?
A: Consider these pivotal factors to ensure you choose the most efficient and effective flow meter for your specific needs:
The type of fluid: Is it a liquid, gas, or steam? Identifying the fluid type is crucial as it determines the appropriate technology and design for accurate measurement.
The range of flow rate required: Determine the minimum and maximum flow rates to ensure the flow meter operates within its optimal range.
Pipe size and the material it is constructed from: This ensures compatibility and optimal integration with your existing system, enhancing performance and reliability.
Temperature and pressure conditions within the system: These factors influence material selection and design to maintain accuracy and durability under varying conditions.
The degree of accuracy needed, whether ±0.5% or ±1%: Choose a flow meter that meets your precision requirements to ensure reliable data for process control.

Q: Where can I find installation guidelines?
A: Simply download our comprehensive PDF manual from our website, or for a more tailored experience, reach out to us for personalized, expert assistance.

Q: What is the maximum pressure for your flow meters?
A: Our standard models are robust and can endure pressures up to 16 bar (232 psi), whereas our specialized high-pressure editions are engineered to handle up to 100 bar (1450 psi), offering superior performance for demanding applications.

Q: Are your flow meters CE and ISO9001 certified?
A: Absolutely, our flow meters not only comply with but exceed the stringent laws and standards of the European Union (EU), ensuring top-notch safety, health, and environmental protection. Our management system is both scientific and standardized, guaranteeing internationally recognized quality and safety.

Q: What documents do you provide for export?
A: We offer a full export package, meticulously prepared, including a Commercial Invoice, Packing List, Bill of Lading, Certificate of Conformity (COC), and more, ensuring seamless and hassle-free international transactions.

Q: How do I place an order?
A: To initiate your order, reach out to us via email or phone to receive a detailed quote. Once satisfied, solidify your purchase by sending us a purchase order (PO), and we'll handle the rest with precision and care.