Georg Fischer | Variable Area Flowmeter | Type 335

The Georg Fischer Variable Area Flowmeter Type 335 is a precision-engineered flow measurement device designed for accurate and economical monitoring of liquid and gas flow rates in industrial piping systems. Manufactured by Georg Fischer Piping Systems, the Type 335 flowmeter operates on the variable area measurement principle, providing reliable flow indication without requiring external power. Designed for vertical installation, the…

The Georg Fischer Variable Area Flowmeter Type 335 is a precision-engineered flow
measurement device designed for accurate and economical monitoring of liquid and gas flow
rates in industrial piping systems. Manufactured by Georg Fischer Piping Systems, the Type 335
flowmeter operates on the variable area measurement principle, providing reliable flow
indication without requiring external power.
Designed for vertical installation, the flowmeter features a durable and corrosion-resistant
construction with multiple material options for compatibility with a wide range of industrial media.
The transparent measuring tube and clearly printed dual-scale display enable easy visual
monitoring of flow rates in both percentage and l/h values.
The Type 335 variable area flowmeter is widely used in water treatment, chemical processing,
industrial utilities, and process automation applications where dependable and low-maintenance
flow monitoring is required. Its modular construction, optional limit switches, and optional 4–20
mA output make it suitable for both local indication and integrated automation systems.

Additional Options
Limit Switches, Special Scales
Applications
Pressure & Differential Pressure Instrumentation
Connection Sizes
1/4”, 3/8”, 1/2”
Connection Type
NPT / BSPT / BSPP
Display Type
Large Auto-Sensing Backlit LCD
Float Material
PVDF
Flow Range
50 l/h to 60,000 l/h
Guiding Rod
PVDF-Coated Stainless Steel Core
Installation Type
Inline Mounting
Materials Available
PVC-U, PVDF, Polysulfone, Polyamide
Measurement Principle
Float / Rotameter Type
Media Compatibility
Liquids, Gases & Corrosive Media
Operating Pressure
0 to 6.9 bar
Output Options
Optional 4–20 mA Sensor
Product Model
Georg Fischer Signet 9900
Product Type
Pressure Gauge Snubber
Seal Materials
EPDM / FKM
Temperature Range
-54°C to 450°C

Applications

SS316L manifolds are extensively used in industrial process control and instrumentation systems, including:

  • Oil & gas processing plants
  • Chemical and petrochemical industries
  • Refineries and process plants
  • Power generation plants
  • Boiler and steam systems
  • Water and wastewater treatment systems
  • Pharmaceutical manufacturing
  • Food and beverage processing
  • HVAC and utility systems
  • Heat exchangers, reactors, and vessels
  • Storage tanks and process pipelines
  • Laboratory and calibration systems
  • Process skids and automation panels
  • Temperature measurement with transmitters, indicators, PLCs, and DCS systems

Product catalog

PDF, 3 MB

Accurate & Reliable Flow Measurement

Provides stable and dependable flow indication for industrial liquid and gas applications.

Corrosion Resistant Construction

Available in multiple chemical-resistant materials for demanding industrial environments.

Easy Visual Monitoring

Large transparent measuring tube and dual-scale markings improve readability and operator convenience.

Flexible System Integration

Compatible with multiple Georg Fischer Signet transmitters and controllers for easy automation integration.

Low Maintenance Design

Robust construction minimizes maintenance needs and ensures long-term operational reliability.

No External Power Required

Operates using a simple mechanical flow measurement principle without auxiliary energy.

Suitable for Multiple Industries

Widely used across water treatment, chemical processing, utilities, and industrial automation sectors.

Wide Flow Measurement Range

Supports applications ranging from low flow to high-capacity industrial flow systems.

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