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Dolphin Gas
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Gas Refilling Activity

Oil Industry Technical Committee (OITC) has authorised us to carry out as well as to certify multicylinder installation anywhere in India. We are also pleased to mention that we are authorised National services provider of Hindustan Petroleum Corporation LTD. to carry out and supply, maintain the reticulated systems in India
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LPG Natural Gas Piping

We DGSPL are authorised vendor for Maharashtra Natural gas ltd. for doing natural gas piping/system in western India. We have completed many projects in natural gas system/piping in commercial and industrial installation.
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Vapor off Take (VOT)

The ‘N’ no. Of Cylinders are connected to the manifold & the Vaporized LPG is directly drawn from the cylinders with Natural Vaporization Process. This vaporized LPG is passed through the properly designed 1st Stage & 2nd Stage Pressure Reducing Station. This LPG VOT facility is normally recommended for Low utility consumption per hour of LPG.
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Liquid off Take (LOT) Systems

LPG Liquid off Take (LOT) System is advance concept in Multi-cylinder Installation which overcomes lots of problems and demerits of bulk LPG Installation & conventional Manifold (VOT) system. Liquid LPG off Take per cylinder will be (up to 10 Kg/Hr) which is comparatively much more than normal Vapour off Take per cylinder (0.5 -0.6kg/hr)
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LPG Reticulated Systems

The purpose of Dolphin LPG Reticulated system is to provide uninterrupted supply of LPG to the customers through meters. This amounts to a great convenience to the customer.

All the LPG cylinders are located in the cylinder cage at the Ground level ; effective factor of safety of safety is increased to a great extent. (Cylinder is not at home) Also the possible damage to the floor and lift is eliminated.

The LPG system has 2 manifolds, out of which, one is the manifold in operation and the other is the stand by manifold. Both the manifolds have respective isolation valves situated at the top end for execution of change over operation.

The control system comprises of a filter first stage regulator, Slam Shut off valve, Safety relief valve, second stage regulators, pressure gauges and meters. The filter filters incoming gas. The Gas further passes through SLAM Shut Off Valve and is regulated by failure of first stage regulator to the extent of 1.2 Kg/ cm². In case of a failure of first stage regulator, Slam Shut Off Valve prevents passage of LPG with direct pressure going to the point of use. The Slam Shut Off Valve cuts off the supply of LPG in case of failure of first stage regulator.
Further to the fist stage regulator Additional provision of safety Relief Valve is made as an extra safety. In case of a very rare simultaneous failure of First stage regulator and slam shut off valve The safety relief valve operates and continuously exhausts gas to the atmosphere till such time as all the gas in the cylinders is exhausted, prevents gas to reach user point with direct pressure.

A non-return valve provision is made to the pipeline to prevent back flow of LPG.

LPG then travels through the risers and reaches the kitchen through isolation valve to the meter through a second stage regulator. The second stage regulator regulates the pressure to the extent of 280 mm of water column. A meter is provided for counting units in terms of meter cube of gas for actual consumption.
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