TELTECH Instrumentation : PD Flow Meters

PD FLOW METER

Positive Displacement Flow Meters are precision made liquid measuring Flow Meters. These are available in single, double and triple capsule models to suit applications covering a wide range of flow capacities. Simplicity of design and construction ensures unmatched accuracy and trouble-free operation over long periods of use. Download Literature in pdf format.

DESIGN FEATURES

Low pressure drop.
Unique wear compensating vane design for sustained accuracy over a wide flow range.
Step-less calibration adjustment.
Separate Meter manifold prevents pipeline stresses from being transmitted to the measuring chamber.
Pressure balanced end covers protect distortion of measuring chamber due to line pressure.
Modular construction ensures interchangeable parts, lower inventory of spares & ease of service.
Mechanical or electronic readout.

PRINCIPLES OF OPERATION

The product enters the Flow Meter through the manifold inlet & causes the rotor to revolve by pressure on the vane blades. The proximity of the rotor to the body forms an efficient seal, whilst the profile of the body ensures that the vane blades are guided through the measuring crescent. The vane blades divide the liquid into segments & each revolution of the rotor displaces four such segments.

Product at line pressure also fills the spaces between the inner & outer end covers so that the inner end covers which form the measuring chamber get 'pressure balanced' & are prevented from distortion due to line pressure.

The rotor spindle transmits the drive through a pressure tight lip seal in the Meter front cover to the Calibrating Mechanism or the Pulse Transmitter which calibrates the Meter output for a corrected Counter readout. All mechanical Flow Meters are fitted with Veeder Root Mechanical Counters.

APPLICATIONS

Aviation refueling.
Tank truck & rail wagon gantry filling.
Ship bunkering & barge loading.
Refineries.
Tank calibration.
Test rigs.
Blending & batching in lube plants, process control & chemical industries.
Microprocessor based automation, remote control & data acquisition systems.

MATERIALS OF CONSTRUCTION

Body	Cast Iron (standard). Cast Steel ASTM A 216 WCB (optional). Stainless Steel AISI 316 (optional).
Rotor	Aluminium Alloy LM 25 (standard). Stainless Steel AISI 316 (optional)
Vanes	Resin impregnated Morganite CY10C.
Bearings	Bearing Steel (standard). Stainless Steel AISI 440 C (optional)
Seals	Nitrile (standard) Viton (optional).
Other Wetted Parts	Stainless Steel AISI 304 & AISI 410.
Manifold	Cast Iron (standard for TL 01 / 02 / 03 / 04 / 05 / 06 / 07 / 08). Aluminium Alloy LM 25 (standard for TL 09 / 10 / 11 / 12). Cast Steel ASTM A 216 WCB (optional for TL 01 / 02 / 03 / 04). Aluminium Alloy LM 25 (optional for TL 01 / 02 / 03 / 04 / 05 / 06 / 07 / 08). Stainless Steel AISI 316 (optional for TL 01 / 02 / 03 / 04) Carbon Steel Fabricated (optional for TL 07 / 08 / 09 / 10 / 11 / 12).

SPECIFICATION

Type	Positive displacement rotary vane.
Sizes	65 mm (Model TL 01 / 02). 80 mm (Model TL 03 / 04 / 05 / 06). 100 mm (Model TL 07 / 08 / 09 / 10). 150 mm (Model TL 11 / 12).
Flow Range	114-1135 Ipm (TL 01 / 02). 136-1364 Ipm (TL 03 / 04). 205 - 2046 Ipm (TL 05 / 06 ). 227 - 2273 Ipm (TL 07 / 08). 295-2955 Ipm (TL 09 / 10 / 11 / 12).
End Connections	ASA 150 FF (standard). ASA 150 RF (optional).
Meter Hand Of Discharge	Left hand entry, right hand discharge (For even Meter model nos.). Right hand entry, left hand discharge (For odd Meter model nos.).
Drive	Positive gear train.
Counter	Mechanical - 5 digit reset, 8 digit-non reset totaliser, weatherproof Veeder Root 7887. Electronic - 8 digit reset, 8 digit non-reset totaliser, weatherproof. Electronic - 5 digit reset, 8 digit non-reset totaliser, flameproof.
Accuracy	Better than +/- 0.10% (in accordance with IS:2801-1967 & Manual of Weights & Measures Vol I Schedule VII Part IV-1974).
Repeatability	Better than +/- 0.02%.
Rangeability	100% to 10% of maximum flow range.
Maximum working pressure	10.54 kg/cm².
Temperature	Up to 70^o C (standard). Up to 200^o C (optional).
Viscosity	0.5 CST to 200 CST (standard). (For liquid viscosity above 200 CST, consult factory).
Pulse Output (optional)	100 PPR, TTL compatible.

Inquiry Form

Technical Documents

- Flow Meters
- Level Gauges
- Tank Fittings
- Service

News Update:

View All News

Kamanwala Chambers,
4th floor, Sir P. M. Road, Fort,
Mumbai 400 001, INDIA

Tel	:	+91 (22) 67477900
Fax	:	+91 (22) 67477901
Email	:	contactus@telgroup.com