VERMONT TECHNOLOGIES PVT. LTD.

Chakan, Pune, Maharashtra

• Self-diagnostic
• Meter error curve linearization
• Alphanumeric 20 x 2 back-lit LCD display
• Tamper-proof and sealed calibration facility and approved by Weights & Measures department
• Accepts all types of interlocks for fail-safe operation
• Can be used with any make of flow meters and pulse generators
• RS-232 / RS-485 connectivity
• Flameproof enclosure for hazardous area application approved by PESO
• Weatherproof to IP-65

Electronic Digital Totalizer realizes a self-test at start-up, and also periodically during operation, to ensure connectivity with external devices and systems.

The Electronic Digital Totalizer can be programmed for a predetermined product quantity to be loaded prior to a delivery or as a Start / Stop system where unspecified product quantity can be delivered. In both the options, relay options are provided to control pumps and tank valves. Product delivery is started only after proper functioning of all the interlocks. The delivery commences with gradual opening of the set stop valve controlled by the Electronic Digital Totalizer. Loading operation parameters like batch quantity, flow rate can be seen on the display.

During product delivery, Electronic Digital Totalizer constantly monitors the meter flow rate and linearizes the meter accuracy curve to give unmatched metering accuracy.

As Electronic Digital Totalizer is designed for truck application, special features like low frequency / voltage functioning, vibration dampening, ticket printing as per customer requirement.

In the case of sudden power failure during product delivery, all the process data is stored into the EEPROM memory of the equipment.

• Flameproof enclosure
• High resolution of 100 pulses per revolution
• Two separate Pulse Trains
• 90 Degree Phase shift between dual Pulse O/P
• Level A Pulse security as per IP 252 & API Chapter 5
• Uses Eltomatic, Denmark make Encoder (CE marked, IP65/NEMA4 certified)
• Very low power requirement

The unit consists of a precisely slotted disc, rotating through a solid state optical switch, which houses an infrared light source and a light sensitive diode. The optical switch detects the passage of the slots on the disc, as the input shaft rotates and translates them with the help of an in-built electronic circuit, into positive square wave output pulses. One revolution of the input shaft produces 100 pulses at the output.

• Operating remote electronic counters to indicate flow meter throughput
• Operating preset counters to control preset quantities through the flow meter
• Operating flow recording and flow rate indicating instruments
• Data acquisition systems

• Fail-safe design : the valve is held closed upon loss of electric supply and/or line pressure
• Positive shut-off : meets ANSI Class VI for bubble-tight closure
• Multi-stage opening and closing : avoids static charge generation due to splashing of product in the beginning and foaming / overflow at the end, resulting in accurate delivery
• Low pressure drop
• Rectangular ports : for uniform valve response and linear control
• Built-in flow rate control : no need of external pilots for flow rate control, when used with electronic batch controller
• No diaphragm

The Alma Piston Digital Control Valve works on the principle of balanced piston.

Piston is always exposed to high upstream pressure from its bottom side, whereas pressure in the piston chamber can be varied with the help of solenoid valves. When pressure in the piston chamber is equal to the high upstream pressure, the top spring acts as a differential force, pushing the piston down on the valve seat and the valve is held tightly-closed.

When pressure in the piston chamber is relieved with the help of solenoid valves, a differential pressure is created across the piston. The high upstream pressure below the piston overcomes the top pressure plus the spring force and pushes the piston up, resulting in valve opening and the flow starts.

• Rugged construction
• High venting capacity air eliminator
• Large liquid settling volume with internal baffles

An Air Separator consists of a mild steel cylindrical tank supported on a stand. The unit has a large cross-sectional area, which slows down the flow of liquid. An internal baffle plate arrangement assists any entrained air or gas to coalesce and separate to the top of the tank, where a high venting capacity air eliminator is fitted.

The air eliminator consists of a stainless steel float connected to a pilot valve via multiple linkages. When air collects in the air eliminator, the buoyant force acting on the float reduces, the float drops down along with the pilot valve connected to the linkage and the air escapes through the main valve. As liquid rises in the air eliminator, the float rises to lift the pilot valve, thereby closing the air release opening of main valve.

• Removal of entrained bulk air or vapor from the metering system pipeline.

• Low pressure drop due to large filter element area
• Easy filter element removal for maintenance
• High venting capacity air eliminator

The Strainer cum Air Eliminator is fitted on C35 flow meters inlet side. The strainer consists of a fabricated body, having a horizontal offset between the inlet and outlet flanges. The wire mesh filter element is positively clamped by the end cover. A drain plug is provided to facilitate servicing. Liquid impurities get filtered on passing through the filter element and clean liquid flows through the flow meter. For new installations, it is advisable to first thoroughly flush lines before installing the flow meter. Periodic strainer basket inspection and cleaning is necessary to prolong the life of the flow meter.

The air eliminator is mounted along side the strainer body. It consists of a stainless steel float connected to a pilot valve via multiple linkages. When air collects in the air eliminator, the buoyant force acting on the float reduces, the float drops down along with the pilot valve connected to the linkage and the air escapes through the main valve. As liquid rises in the air eliminator, the float rises to lift the pilot valve, thereby closing the air release opening of main valve.

• Rugged and fully welded construction
• Displacement tube for accurate volumetric adjustment
• Internal baffle plate prevents vortex formation and related trapping of air
• Provision to mount thermometers and level bottle for accurate liquid measurement
• Fixed or mobile versions with or without unloading pump and motor

Proving Tanks are designed and manufactured in accordance with Indian Standard IS:2341 and Manual of Weights & Measures.

A Proving Tank consists of a cylindrical shell welded between two conical ends, which ensures smooth flow of liquid while draining the tank. Fitted to the bottom cone is a T-joint (where inlet and outlet isolation valves can be fitted) and a drain valve to assist in filling and draining of the tank. The top cone is fitted with a neck tube, having a conical top cover to prevent ingress of dirt in the tank.

A graduated glass tube is externally fitted to the neck tube, which indicates the liquid level in the neck tube. Graduations on the tube correspond to the volume per unit height of the neck tube.

The cylindrical shell has a manhole fitted with a bolted cover, which can be opened for internal inspection, painting, etc. A displacement tube arrangement is provided on the top cone to adjust the internal tank volume with the tank capacity mark on the graduated glass tube. For accurate adjustment of tank level, rest pad is fixed to the top cone for keeping level bottles. The body also has two thermowells capable of accepting mercury in steel type thermometers.

A baffle plate provided at the point of liquid entry in the bottom cone, prevents swirl or vortex formation and related trapping of air in the liquid. The entire tank is erected on a sturdy steel channel frame, which can be either grouted (for a fixed Proving Tank) or bolted to a movable trolley (in case of a mobile Proving Tank). In the latter case, the trolley comes with a tow bar and leveling screw jacks. The choice of a centrifugal pump with motor to fill or drain the liquid is optional, both for fixed or mobile tanks.

• Calibration of field mounted liquid flow meters or master meters
• Vehicle tank calibration
• Calibration of bulk measures

Available in 6 (150 mm) size, this device is mounted on the roofs of tanks and can be used in place of conventional gauge hatches with the following features:

• Negligible loss of vapor
• Operators not exposed to hazardous vapors
• No product spillage due to wiping of the tape
• Conforms with the requirements of Institute of Petroleum Measurement Manual Part IV Section 3.7
• Accommodates thermometers manufactured to the Institute of Petroleum Specification with overall and immersed lengths of 340 mm and 65 mm respectively.

The Slot Dipping Device has been designed to provide a convenient and safe means of manually measuring the levels and temperature and taking samples of petroleum, petrochemical, chemical and other volatile or hazardous liquids in bulk storage tanks, in pressures of up to 40 (1016 mm) WG.

The device can accommodate both heavy and light dip weights and also the Temperature and Sampling Device.

The Temperature and Sampling Device has been designed to provide a means of taking samples and temperature of products stored in bulk in the petroleum, petrochemical, chemical and allied industries. When used in conjunction with the Slot Dipping Device which is suitable for pressures up to 40 (1016 mm) WG, loss of vapor is greatly reduced.