Specifications

LWQ-A type gas turbine flow meter, output current signal 4-20mA, but no display on site

 

Introduction

Integrated temperature sensor, pressure sensor, flow sensor and intelligent flow accumulator, the self-developed gas turbine flow meter of LWQ series, which assimilates the advanced technology of flow meters from home and abroad with optimum design, is a new generation of gas flow meter with high precision and reliability based on the theory of pneumatics, hydromechanics, electromagnetics etc. It has excellent performance under both low and high pressure, variety ways of signal output and low sensitivity to the fluid turbulence. Thus it is widely applied to the measurement of gas flow, such as natural gas, coal gas, LPG, light hydrocarbon gas and so on.

The product has been certified by General Administration of Quality Inspection for Explosion-Proof Products according to the GB3836.2000 <Electrical Apparatus for Explosive Gas Atmospheres--Part 1: General Requirement>, GB3836.2-2000< Electrical Apparatus for Explosive Gas Atmospheres--Part 2: explosion-proof d> and GB3836.4-2000 < Electrical Apparatus for Explosive Gas Atmospheres--Part 4:  Intrinsically Safe Type i>.The ex-marking is ExdBT6(explosion-proof) and/or ExiaCT6(Intrinsically Safe Type). It is suitable for Zone 0(Intrinsically Safe type only), 1, 2 Hazardous (classified) Locations, Dangerous Gases or Vapors Zone: A, B, C and Temperature Classes: T1~T6.

 

3.Technical parameters

3.1  Basic parameters

3.1.1        STP flow range under normal pressure (see List 1)

Model	Diameter(mm)	Flow Range m3/h	Starting Flowm3/h	Pressure grade MPa	mounted form
LWQ-25	25  ( 1")	0.7-7	0.6	4.0
		1.5-15	1
		3-40	2
LWQ-40	40 (1.5")	4-40	2.5	4.0
		8-80	3
LWQ-50	50 (2")	10-100 15-150	3.5 4	4.0
LWQ-80	80 (3")	15-300	4	1.6
LWQ-100	100(4")	20-400	5	1.6
LWQ-150	150(6")	50-1000	8	1.6
LWQ-200	200(8")	100-2000	20	1.6
LWQ-250	200(10")	150-3000	30	1.6
LWQ-300	300(12")	200-4000	40	1.6

3.1.2        Models & Specifications (see List 2)

 

For example, LWQC50S gas turbine flow meter means high pressure gas turbine flow meter of which diameter is 50mm with the function of field display and current output and its sensor material is stainless steel.

3.1.3              accuracy class 1.0 or 1.5

3.1.4              Operation Condition

           ambient temperature-30+60

           atmospheric pressure86KPa106KPa

           medium temperature-30+80

           Relative Humidity5%95%