FAQ

1. What is the Model Number of Compressor?

Ans: C5U214.1 GPX with capacity of 350 SM3/HR.

2. What is the expansion of C5U214.1GPX?

Ans: In C5U214.1GPX,

3. What are the typical areas of application for CNG Compressors?

Ans: Bottling Plants, Electrolysis plants, Helium recovery systems, NGV/CNG refueling systems, Hydro power stations, Seismic research, Gas production plants, Air separation plants, Air-blast circuit breaker systems, Oil and gas industry, Petro chemicals industry.

4. What is the net weight of C5U214 without motor or gas engine?

Ans: Net weight (without motor) in Metric tons approximately is: 1.6.

5. What are the benefits of having Robust, modern, compact design and factory assembled, packaged compressor unit on its own base frame with anti-vibration mounts?

Ans: Simple onsite installation, no factory erector required, no special foundation required, Minimal space requirement, suitable as mobile unit, High accessibility for ease of maintenance.

6. What are the benefits of having low-pressure ratio per stage?

Ans: High efficiency, low discharge temperature, less wear, safer operation.

7. What are the benefits of having automatic drains for each stage collecting the condensate into an integral receiving tank, where the gas from the tank is recycled into the suction line?

Ans: Unloaded starting, Low operator attention, no gas loss to atmosphere.

8. What are the benefits of having pressure-tight crank case?

Ans: Power saving, no gas loss to atmosphere, flexibility to handle various inlet pressures, optimization to match specific operating conditions.

9. What are the benefits of having air-cooled compressor?

Ans: No other coolant necessary, therefore no fouling, No risk of corrosion, no need for cooling tower, pups etc., Fewer parts, simpler site installation and maintenance.

10. What is the benefit of having all the compressor units subjected to a trail run on the test bed of Sulzer before delivery?

Ans: Fully tested compressor delivered to site.

11. Give a brief idea about the cylinders in the compressor.

Ans: The cylinders are made of high quality cast iron with deep transverse fins for ample cooling. The pistons are made of cast iron and incorporate specially selected cast iron or synthetic piston ring combinations.

12. Give a brief idea about valves in the compressor.

Ans: The valves have been designed specially for the very severe conditions, which appear in high-pressure gas compressors. Suction and discharge parts of the individual stages are concentrically combined in one single valve which, placed on top of the cylinder, can be removed easily. The position of the suction part in the valve center allows cooling of the discharge part situated on the outer side. Valve lift, spring characteristic and the material of the plates are chosen according to the gases compressed and the operating conditions.

13. Give a brief idea about Instrumentation in the compressor.

Ans: Each compressor stage is equipped with a pressure gauge and safety valve. The gauges are arranged in a compact panel, which also contains the indicating oil pressure gauge. One temperature switch monitors the gas temperature on the last stage. The outlet of the safety valves is picked back to the suction side of the compressor for gas application. Level indicators for crankcase oil and for condensate receiving tank are also provided.

14. Give a brief of Automatic condensate drain.

Ans: The separators located at the outlet of each stage are regularly drained by means of a diaphragm valves actuated by a timer-controlled solenoid. The condensate and escaping gas are led from the separators into a condensate-receiving tank from where the gas is recycled into the suction line while the condensate can be manually or automatically drained off to the atmosphere. The unit is fully piped, with high-strength flexible hoses for connection on the suction and discharge side.

15. What are the gases handled by CU Compressor?

Ans: H2, He, CNG, N2, Ar, CO2, Air and other non-corrosive gases and gas mixtures.

16. What is the Model Number of Gas Engine from Caterpillar, USA?

Ans: G3306

17. How many Cylinders will be there in the 2025 WL capacity Cascade?

Ans: 27 cylinders each of 75 Water Liter Capacity each.

18. Start up system of the engine and its control.

Ans: Air is used to start the gas engine. This air is supplied using a small air compressor (to be provided by the client) of capacity 23.5 ACFM ( 40 AM3 / Hr) and discharge pressure of 250 Psig (17.2 bar g) . Details of starting air are as follows

• Discharge Pr : 217.5 Psig (15 bar g)
• Air consumption : 0.2 m3 / sec at 125 psig
• No. of starts : 6
• Duration of each start (sec) : 10
• Initial tank pressure : 217.5 psig
• Final tank pressure : 90 psig
• Air receiver Volume required : 1.5 M3
• Air Receiver design pressure : 300 psig

The above details are suitable for our compressor of capacity 350 SM3 / hr (Model C5U214.1GPX). Automatic engine trip shall take place for the following:

• Low oil pressure
• Engine Over Speed
• High cooling water temp

19. Status of the compressor while at idle condition prior to restart on low-pressure signal from the PLC.

Ans: The compressor shall trip as soon as pressure goes beyond the high set point. It would remain shut off till it is restarted when it receives low-pressure signal from PLC

20. How and where Pre-shipment testing and measurement accuracy of the FTI dispensers will take place and its procedures and standard followed.

Ans: Pre shipment testing and accuracy measurement of FTI dispenser shall be conducted at FTI works, Canada. They will provide a certificate for the same. The governing standard is CENELAC Zone 1.

21. Recommended spare part of the compressor, engine and other accessories for one year and their service characteristics.

Ans: The list of normal operation spares of compressor for 8000 hrs or 2 years whichever is earlier is as follows: (Note: The spares list attached is for the compressor model C5U214.1GPX). Cyl. Combination - 2x140dia, 1x110dia, 1x60dia, 1x35dia, 1x20dia Sr. No. Description Qty

22. Details of comprehensive training at the factory for engineers and O&M training at site for operators & technicians.

Ans: O&M training can be given to your representatives at your site / at our works by our customer support and services personnel. This training is normally conducted for a period of 5 days during which all pertinent points regarding starting of compressor, normal operation and maintenance procedures, compressor trip conditions, safety features and parameters, of compressor package are explained.

23. Possibility and option for integrating the operation and sales data of dispensers with PC in sales room where all data can be stored.

Ans: The above option can be incorporated in the dispenser and data can be viewed in a PC and stored suitably for retrieval at a later date. We have supplied this system in India. Please confirm whether you require this system, so that we can quote for the same. Presently its price is not covered in our offer.

24. Origin of the PLC and instrumentation items.

Ans: Following are the makes of PLC and instrumentation:

• PLC: Allen Bradley / Siemens
• Pressure gauges: Wika / Stauff / UCC
• Temperature Gauges: Wika Instruments
• Pressure Switches: Switzer
• Diff. Pressure Switch: Switzer
• Temperature Switch: Switzer
• Safety valves: Fainger Leser
• Solenoid valve: Jefferson / Rotex

25. How will the warranty be covered? Like in case if the sales representative is terminated or if Sulzer stops it CNG business completely etc.,

Ans: The clients are offered 10-20% PG (performance Guarantee) from Sulzer India Ltd., when the client open LC. So the clients are assured with the warranty with PG.

26. Delivery time of the machine.

Ans: The delivery time for the Electric Motor driven compressor is 4 months and the delivery time for Gas Engine Driven Compressor is 6 months. If the client requires then the delivery time of Gas Engine Driven Compressor can be reduced to 5 months with an extra cost of USD 3,000 because of the air shipment of Gas Engine from Caterpillar, USA to Sulzer India Ltd.

27. What is the time period between Assembling and Testing of the complete machinery and also what is the time period between Assembling, Testing and training of the client.

Ans: Assembly usually takes place during the last month. The client can send his representatives during assembly also. Training at our factory will be held during the last month only.

28. Can the client check himself the machine before the shipment is made, though there will be third party who will check.

Ans: The client is welcome to visit the factory any time for inspection. Usually Sulzer India Ltd. has a third party inspection agency in Pune called Bureau Veritas Industrial Services.

29. Can the P & I Diagram be delivered to the client before the client opens LC?

Ans: No. The P & I diagram will be issued to the client only one month after the client opens LC with Sulzer India Ltd.

30. Grade of the Pipe

Ans: The loose pipes we supply for connecting the compressor, cascade, priority panel & dispenser. They are SS316L or SS316Ti.

31. Valves Details

Ans: The compressor valves are of plate type concentric suction / discharge and are of our design

32. Priority Panel Details

Ans:

33. Cascade Cylinder Certificate

Ans: The design code of the EKCL Cylinders is BS EN 1964 or IS: 7285.

34. Gas Consumption of the engine

Ans: The approximate gas consumption of the engine is 20.6 Sm3/h at 50% load, 26.7 Sm3/h at 75% load and 32.1 Sm3/h at 100% load. The tolerance on gas consumption is +/-5%.

35. Monthly maintenance charges for Gas Engine 36. Life of Gas Engine with overall time and budgetary Expenditure 37. Life of Compressor with overall time and budgetary Expenditure 38. Without Canopy what is the sound level from the first meter for Electric Motor driven compressor and for Gas Engine driven compressor.

Ans: Noise level of the compressor will be approx. 120 dBA (without canopy). With electric motor it will be approx. 95 dBA (without canopy) at 1-meter distance in free field

39. Does Sulzer machine use any filter between the gasline (Titas Gas Supply Line) and compressor or does Sulzer machine use any filter between the gasline (Titas Gas Supply Line) and Caterpillar Gas Engine?

Ans: It is not recommended to use the gas filter for NA (naturally aspirated) engines. They do use on TA (Turbocharged Aftercooled) engines. It is recommended to feed the gas free from debris and particles. For this Gas engine at 98Kw load it require around 31SM3/hr @ fuel LHV of 905Btu/ft3.

40. What dispenser is supplied to the clients and what are its technical details?

Ans: We are presently offering Fuelling Technology Inc (FTI), Canada Dispenser with the following spec.

• Model: C5125D51
• Type: Automatic, Dual hose
• Mass flow meter make: Micro motion CNG50
• Mass flow meter type: Coriollis
• Type of Hose: Steel reinforced
• Mass flow: 20 Kg / min + / - 0.5%
• Hose safety coupling: Breakaway type
• End Connection: NGV 1
• Outlet connection: Stainless steel reinforced flexible hoses with NGV 1 Probes & quick release coupling
• Valves: Pneumatic operated stainless steel ball valve (for flow control)
• Type of control: Digital
• Power supply required: 230 V + / - 10%, 50 HZ + / - 3%, 1 Ph AC