Gas Turbine Flow Meter
Description
The operation of the International Gas Turbine Meter is based on the measurement of the velocity of gas. The flowing gas is accelerated and conditioned by the meters straightening section. The straightening vanes prepare the gas flow profile by removing. undesired swirl, turbulence and asymmetry before the gas flows to the turbine wheel. The dynamic forces of the flowing fluid cause the rotor to rotate.
The turbine wheel is mounted on the main shaft, with special high precision, low friction ball bearings. The turbine wheel has helical blades that have a known angle relative to the gas flow. The conditioned and accelerated gas drives the turbine wheel with an angular velocity that is proportional with the gas velocity.
Description
Application
It is typically used in medium and low flow gases such as natural gas, air, nitrogen, etc. It is an ideal instrument for gas metering and urban natural gas, gas pressure regulating station metering and gas trade metering in petroleum, chemical, electric power, metallurgical industry and civil boilers.
Specifications
| Type | Gas Turbine Flow Meter |
| Code | LWQ |
| Diameter | XXX: DN20-DN400 |
| Converter | N: Pulse output; No display A: 4-20mA output; No display E1: Battery Power Supply; No output; Ex; Digital Display E2: 24V DC; 2-wire 4-20mA output; Ex; Digital Display E3: 24V DC; Pulse output; Ex; Digital Display E4: 24V DC; 3-wire 0-20mA; Ex; Digital Display E5: 24V DC; 3-wire 4-20mA; Ex; Digital Display D1: 4-20mA (2-wire); T & P Compensation; Ex; Digital Display D2: 4-20mA (3-wire); T & P Compensation; Ex; Digital Display D4: 4-20mA; T&P Compensation; Ex; Digital Display (Notice: D4 is only for cast steel material; E2, E3, E4, E5, D1, D2, D4 are available for dual power, Modbus RS485 option) |
| Accuracy | N: 1.5% G: 1.0% |
| Flow Range | S: Standard Range E: Extended Range |
| Body Material | S4: Stainless Steel 304 S6: Stainless Steel 316 CA: Cast Aluminum CS: Cast Steel (Only for D4 Type) |
| Rotor Material | AB: ABS Plastic AA: Aluminum Alloy |
| Explosion Proof | NA: Without Ex Proof CT: Exia II CT4 BT: Exd II BT6 |
| Connection | THM: Male Thread Connection; Available from DN20 to DN50 THF: Female Thread Connection; Available from DN20 to DN50 Flange Connection: ANSI Flange - A15: ANSI 150#; A30: ANSI 300#; A60: ANSI 600# DIN Flange - D16: DIN PN16; D25: DIN PN25; D40: DIN PN40 JIS Flange - J10: JIS 10K; J20: JIS 20K; J40: JIS 40K |