Oval Gear Flow Meter (Model: LC-A Series)?

Product Overview?

The ?LC-A series oval gear flow meter? is a positive displacement flow measurement device designed for high-viscosity fluids, including:

Heavy fuel oils

Resins

Polyols

This mechanical meter features:

Local mechanical counter display

Pulse output for remote monitoring

Explosion-proof certification (Exia IIC T6 Ga)

Technical Specifications?

1. ?Core Parameters?

Accuracy?: ±0.5% (calibrated at 20°C)

Repeatability?: ±0.1%

Bore Sizes?: DN10–DN100

Materials?:

Housing?: Cast iron / Stainless steel (316L)

Gears?: Stainless steel (304/316)

Bearings?: Tungsten carbide

2. ?Performance?

Viscosity Range?: 5–100,000 cP

Pressure Rating?: 1.6 MPa (standard) / 4.0 MPa (high-pressure variant)

Temperature Range?:

Medium: -10°C to +120°C

Ambient: -20°C to +60°C

3. ?Electrical Output?

Pulse Output?: NPN open collector (12VDC, 100mA max)

Frequency Range?: 0–500Hz

Installation Requirements?

Flow Direction?: Unidirectional (marked by arrow on housing)

Straight Pipe Runs?:

Upstream: ≥5× pipe diameter

Downstream: ≥3× pipe diameter

Filter Requirement?: 80μm mesh upstream

Prohibited Media?

Abrasives?: Fluids with solid particles >50μm

Corrosives?: Hydrofluoric acid, concentrated alkalis

Non-lubricating?: Liquid CO?, liquid ammonia

Maintenance Protocol?

Zero Calibration?:

Disconnect pulse output

Verify mechanical counter alignment

Gear Inspection?:

Check for wear every 2,000 operating hours

Replace if backlash exceeds 0.1mm