The Sho-Rate™ Model 1350G Glass Tube Variable Area Flow Meter (Part Number / Model Code: 1350GAL3ABJN5AAA) manufactured by world-renowned Brooks Instrument LLC (United States) has served as the global industry benchmark for low-flow indication across decades. Specifically tailored for low-flow gas and liquid applications, it provides an economical, rugged, and highly dependable flow measurement solution, particularly well-suited for industrial purge duties.

PRODUCT ARCHITECTURE & KEY FEATURES (1350GAL3ABJN5AAA):
- Product Series: Sho-Rate™ "50" Model 1350G with an approximate 65 mm nominal scale length.
- Precision Metering Tube: Heavy-wall, precision-bore borosilicate glass tube designed to withstand thermal shock and aggressive process fluids. Self-aligning block architecture allows quick and safe tube removal or replacement directly on-site without disconnecting the meter from process piping.
- Float & Scale Configuration: Utilizes precision rib-guided or spherical floats made from 316 Stainless Steel / Glass, paired with direct-reading or reference scales permanently fused to the glass tube for parallax-free visual reading.
- Protective Face Shield: Rugged aluminum frame equipped with a transparent impact-resistant Polycarbonate front face shield featuring an integrated optical magnifier lens for effortless float position reading.
- End Blocks & Seals: Heavy-duty 316 Stainless Steel end blocks coupled with high-integrity Viton / PTFE compression elastomeric packing, guaranteeing positive sealing against hazardous process leakage.

KEY ADVANTAGES:
- Outstanding Repeatability: Offers high repeat precision of 0.25% Full Scale (F.S.).
- Proven Pressure & Temperature Ratings: Certified for operating pressures up to 200 psig (13.8 bar) and process temperatures between 1°C and 121°C (33°F to 250°F).
- Integral Float Stops: Upper and lower stops prevent accidental float loss or tube damage during maintenance cycles.

• Manufacturer: Brooks Instrument LLC
• Origin: United States (USA)
• Model Code: 1350GAL3ABJN5AAA
• Meter Series: Sho-Rate™ 1350G Series (Sho-Rate "50")
• Measurement Principle: Variable Area (Rotameter)
• Fluid Compatibility: Gases (Air, N2, He, Ar, CO2, O2) and Liquids (Water, chemical reagents, light oils)
• Nominal Scale Length: 65 mm
• Calibration Accuracy: ±5% of Full Scale at reference conditions
• Repeatability: 0.25% F.S.
• Maximum Operating Pressure: 200 psig (13.8 bar)
• Operating Temperature Range: 1°C to 121°C (33°F to 250°F)
• Metering Tube Material: Heavy-wall Borosilicate glass
• Float Material: 316 Stainless Steel / Glass / Sapphire (Configuration specific)
• End Blocks & Adaptors: 316 Stainless Steel
• Frame Body: Painted industrial aluminium enclosure
• Front Cover Shield: Transparent Polycarbonate with integrated magnifying ridge
• Packing & Gasket Elastomers: Fluoroelastomer (Viton) / PTFE
• Process Connections: 1/4" NPT (or 1/8" NPT) female horizontal / rear orientation
• Mounting Position: Vertical upright within 6° of true vertical alignment
• Typical Applications: Chemical reactor inert purging, analytical carrier gas metering, bubbler tank depth measurement, and laboratory pilot plant monitoring.