Durable Aluminum Alloy Gas Roots Flowmeter with Pulse Output

• 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

Product Highlight: Gas Roots Flowmeter

Discover the precision of the Gas Roots Flowmeter, an exceptional gas monitoring and measuring instrument celebrated for its unparalleled accuracy, remarkable reliability, and extensive range.
Introducing the Intelligent Gas Roots Flowmeter, a revolutionary advancement that seamlessly combines flow, temperature, and pressure sensors with smart instrumentation, building upon the esteemed Roots Flowmeter. This cutting-edge device is the perfect choice for measuring non-corrosive gases such as natural gas, city gas, propane, nitrogen, and various industrial inert gases.

CHARACTERISTIC

1. Exceptional Range Capability:
With varying specifications, our flowmeter boasts a maximum range reaching an impressive 1:216, ensuring seamless performance even at low starting flows.
2. Efficient Low Starting Flow:
3. Remarkable Precision and Consistency:
The flowmeter's long-term accuracy remains unaffected by the medium, delivering consistently stable performance over extended periods.
Minimal Pressure Loss:
4. Designed with different specifications, the flowmeter exhibits a pressure loss ranging between 0.08kPa-0.58kPa. It combines high integration with low power consumption, utilizing advanced microcomputer technology and high-performance integrated chips, resulting in a powerful and superiorly performing device.
Ingenious Compact Design:
5. The integration of pressure, temperature, and flow sensors within the device results in a more streamlined and compact structure. Equipped with digital sensors for precision.
6. The innovative digital temperature and pressure sensors feature separate calibration and verification processes, simplifying replacement, maintenance, and usage.

7. Innovative Sectional Correction:
By analyzing the flow frequency signal, the instrument coefficient is divided into nine sections for automatic linear correction, significantly enhancing the instrument's wide-range accuracy.
8. Robust Data Storage Features:
Employing an E2PROM data storage chip, our flowmeter ensures the preservation of user and manufacturer parameters. The timely data-saving function safeguards against data loss during unexpected power failures, with internal parameters permanently saved.
9. Comprehensive Basic Output Options:
The intelligent flow meter offers base meter pulse output, versatile pulse signal outputs, and calibration pulse output. Additionally, it supports a 4~20mA analog signal, along with RS485 communication tailored to user requirements, enabling efficient data traceability management.
10. Advanced Real-Time Database Access:
GPRS Real-Time Management System
11. The B-type meter in this series features a GPRS transmission capability, facilitating online, scheduled, and fixed-point data transmission. It efficiently monitors instrument data, controls valves, assesses pipeline pressure, and detects gas alarms, simplifying the establishment of a GPRS wireless network system.

PRINCIPLE

The Intelligent Gas Roots Flowmeter is meticulously engineered, comprising a robust housing, conjugate rotor, and an intelligent flow integrator. The precisely calibrated conjugate rotors, positioned in the metering chamber, maintain optimal relative positions through calibration gears, driven by the pressure differential between the inlet and outlet (P_in > P_out). This ensures continuous non-contact sealing, with each rotor rotation delivering 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 Qualified Excellence

Our certifications stand as a robust testament to our unwavering strength and reliability. In 2019, Jiangsu Hualiu Instrument Co., Ltd. was bestowed with the eminent 'National High-tech Enterprise' recognition. By 2023, we proudly acquired the 'Special Equipment Manufacturing Production License'. Our extensive array of certifications encompasses the ISO Quality, Environmental, and Employee Safety System Certifications, along with the Product Measuring Apparatus Type Approval Certificate. Furthermore, we hold Explosion-proof and Intrinsically Safe Certificates across our diverse product lines, complemented by the SIL Safety Certificate, CE Certificate, and our esteemed Invention and Utility Model Patent Certificates.

FAQ

Q: How can I ensure I choose the perfect flow meter for my specific application?
A: Take into account these crucial considerations:
The fluid type you are dealing with: liquid, gas, or steam.
The necessary range of flow rate that your system requires.
The size of the pipe and the material from which it is made.
The temperature and pressure conditions prevalent within your system.
The precision level essential for your application, whether ±0.5% or ±1% accuracy.

Q: Where can I access detailed installation guidelines?
A: You can effortlessly download our comprehensive PDF manual or contact us directly for tailored assistance.

Q: What is the maximum pressure capacity of your flow meters?
A: Our standard models are engineered to withstand up to 16 bar (232 psi), while our specialized high-pressure models are robust enough to handle up to 100 bar (1450 psi).

Q: Are your flow meters certified with CE and ISO9001?
A: Absolutely, our flow meters fully comply with the rigorous standards set forth by the European Union (EU), meeting the EU's stringent requirements for safety, health, and environmental protection. Our management system is meticulously scientific and standardized, ensuring internationally acclaimed quality and safety.

Q: What documentation do you provide for export processes?
A: We provide a comprehensive export documentation package, including a Commercial Invoice, Packing List, Bill of Lading, COC, among others, to guarantee smooth and seamless international transactions.

Q: How can I proceed with placing an order?
A: Simply contact us via email or phone to receive a detailed quotation, then confirm your purchase by submitting a purchase order (PO).