High Pressure Oval Gear Flow Meters

High Performance Fluid Flow Meters

Titan High Pressure Oval Gear Flowmeters

These compact, rugged, high-pressure oval gear flowmeters are designed to give high performance with a low cost of ownership and suitable for use as high performance fluid flow meters. These high pressure flow meters are happy measuring simple water like products as well as lubricating fluids. The standard inlet and outlet are BSP or NPT female threads for autoclave, flanges are also available. For OEM use alternatives, including manifold mountings, are available. The standard models are 316 St St, and other materials are available if required. For hazardous areas either the Namur sensor or the reed switch (simple apparatus) may be used.

OG2 700 Bar High Pressure Oval Gear Flow Meter

High Pressure Oval Gear Meter: Features

• High performance fluid flow meters
• Excellent chemical resistance
• Rugged construction
• Individual calibration
• High viscosity capability
• Low pressure loss
• No flow conditioning required
• Compact flow meter assembly
• Hall, reed switch or Namur sensor
• Good accuracy
• 0.1% repeatability
• IP67/NEMA 4 protection
• Up to 700 bar on selected models
• Non-metallic option

400 Bar Oval Gear Flow Meter – High Pressure Flow Meters from Titan

Titan High Pressure PD (Positive Displacement OG Flow Meters) are Ideal For

• High pressure flow measurement
• High performance fluid flow meter installations
• Engine test
• Oil flow
• High viscosity fluids
• OEM equipment
• Hazardous area flow meter requirements

OG2 700 Bar High Pressure Oval Gear Flow Meter

High Pressure Oval Gear Meters – Standard Materials of Construction

• Body and cap – 316 St St
• Hastelloy C
• 'O' Ring – Viton®
• Gears – PEEK
• Magnets – Ceramic

Titan high pressure flow meters

At the heart of the Titan high pressure oval gear flow meters are a pair of toothed oval gears one of which contains chemically resistant magnets. Rotation is detected through the chamber wall by a Hall Effect detector, Namur sensor or a reed switch giving a number pulses per litre passed. The output is an NPN pulse or a voltage free contact closure either of which is readily interfaced with most electronic display or recording devices. This combination of materials and technology ensures a long life product with reliable, accurate operation throughout. PEEK™ is a superb material for gear and bearing manufacture, it has excellent pressure and velocity characteristics coupled with very good thermal properties and chemical resistance. Stainless gears with roller bearings are an alternative. For fluids with viscosities above 1000 cSt specially cut gears are required and the flow range is reduced for a given meter size.

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High Pressure Oval Gear Flow Meter: Order Codes

OG2 700 Bar High Pressure Oval Gear Flow Meter

e.g. OG4-SS4-VHT-B is a standard flowmeter with
an oil flow range of 0.25 to 50 L/min, 316 St St
body, 400 Bar pressure rating, Viton® seal, Hall
effect detector and ¾' BSP female fittings with a
standard 6 point traceable water calibration.

High Pressure Flow Meter 'O' rings

Viton® is the standard material for all of our high pressure flow meters although nitrile and EPDM are available as options. Due to the vast number of differing chemicals that can be put through the flow meter various other elastomer materials may be available for the high pressure flow meter of your choice. Please contact your sales representative for technical help on this matter.

High Pressure Flow Meter Magnets

The standard magnet material is ceramic which has very good chemical resistance in a wide range of fluids. They are attacked by some very strong acids and should be replaced with coated magnets if this is the case. The alternative coatings are PTFE and PVC depending on the meter size or the detection method, consult your representative for more information.

High Pressure Flow Meter Gear material

PEEK is a high temperature engineering thermoplastic. It is tough, rigid and strong with very good chemical and radiation resistance. It retains its excellent mechanical and tribological properties at high temperatures. This valuable combination of properties makes PEEK an ideal material for our gears. The grade of material used is carbon fibre reinforced with added graphite and PTFE, these additives give extra strength and reduced friction but remain captive in the material matrix and do not compromise the chemical resistance. Alternative gear materials may be available, contact your distributor for more details.

High Pressure Flow Meter High temperature rotors

Because of the high temperature characteristics of PEEK we can use the same material for all flowmeter temperature ranges. The standard meter is manufactured for use up to 80°C (176°F) but optional rotors are available for 100°C (212°F) and 150°C (318°F).

High Pressure Flow Meter High viscosity rotors

The operation of the meter requires specially modified gears for use with high viscosity fluids, over 1000 cps. Above this viscosity the maximum flow capacity of the meter is reduced and the gears are modified. The low flow capability and the overall accuracy both improve dramatically. See the graph below for the percentage reduction in maximum flow with these thicker fluids.

High Pressure Flow Meter Flanges and pipe connections

The standard products are shown on the appropriate data sheets but any meter can be manufactured with alternative fittings to suit your application, consult your distributor for details.

Oval Gear Flow Meters – Viscosity Graph