Commercial kitchens & small industries

LPG to CBG Conversion

Replace LPG with CBG.

Smart. Sustainable. Cost-effective. A complete small-scale CBG system — cascade trolleys plus a two-stage pressure reduction skid — that lets restaurants, hotels, canteens and small industries switch from LPG cylinders to clean, renewable Compressed Biogas.

50 – 500 WL trolleysPRS 2 – 20 kg/h250 bar → 0.5–1 barWorking + standby supply

Size my system — free Talk to an engineer

CBG Cascade TrolleyBuilt at our Greater Noida plant

≈ 1.03 kg

CBG replaces 1 kg of LPG (same heat)

≈ 2 × 50 WL

CBG cylinders replace one 19 kg LPG cylinder

2 stages

Pressure reduction: 250 → 4 → 0.5–1 bar

0 downtime

Standby trolley while the empty one refills

Why switch

Why commercial kitchens are moving from LPG to CBG

CBG is purified biogas — at least 90% methane — made from agricultural and organic waste in India. It burns like natural gas, and our small cascade + PRS system brings it to sites that have no pipeline connection.

Lower operating costs

Pay for the energy you use, without the swings of commercial LPG pricing. Compare your own numbers in the calculator below.

Clean & renewable

Made from organic waste, CBG cuts emissions and supports India’s circular, waste-to-energy economy.

Safe & regulated

PESO-approved cylinders with burst disc and fusible plug, stored outside the kitchen, and a two-stage regulated supply.

Consistent supply

One working and one standby trolley — no running out mid-service, no daily cylinder changes.

How it works

From CBG plant to your burner

The cascade trolley stores CBG at 250 bar. The pressure reduction skid brings it down in two controlled stages to the pressure your appliances need.

CBG supply

Trolley filled at a CBG plant or mother station at 250 bar

Cascade trolley

1 working + 1 standby, outside the kitchen

High-pressure hose

Connects the trolley to the PRS

PRS stage 1

250 bar → about 4 bar

PRS stage 2

4 bar → 0.5–1 bar regulated outlet

Burners & appliances

Ranges, tandoors, boilers, fryers, ovens

The simple maths

How much CBG do I need to replace LPG?

Three steps — the same ones our calculator follows.

Know your LPG use

LPG (kg/day) = cylinders per day × 19 kg

Example: 4 commercial cylinders a day = 76 kg LPG/day.

Convert to CBG

CBG (kg/day) = LPG × 46.1 ÷ 44.9 ≈ LPG × 1.03

Example: 76 kg LPG ≈ 78 kg CBG per day for the same heat.

Size the trolley

Cylinders = CBG ÷ 9.4 kg usable per 50 WL

Each 50 WL cylinder holds about 10 kg at 250 bar, of which about 94% is usable.

Based on net calorific values: LPG ≈ 46.1 MJ/kg, CBG (≈95% methane) ≈ 44.9 MJ/kg. Final sizing is confirmed after a site survey.

Free sizing calculator

Size your LPG to CBG system in 60 seconds

Enter your current LPG use. The calculator recommends the cascade trolley and pressure reduction skid, shows your refill frequency and gives an indicative package price — instantly.

Your recommended CBG package

1 working + 1 standby trolley, and one PRS sized for your peak flow.

Cascade trolleys

2 × CBG-06

1 working + 1 standby · 56.4 kg usable each

Pressure reduction skid

PRS-20

Rated 20 kg/h · peak load 49%

Indicative package price

Enter your details below

to view the price & quotation

Gas requirement

Quantity	Per day	Per month
LPG used (kg)	38.0	1,140
Energy (MJ)	1,752	52,554
CBG required (kg)	39.0	1,170
CBG required (Sm³)	54.3	1,628

Flow rate

Case	kg/h	Sm³/h	kW
Average over 8.0 h	4.88	6.78	61
Peak (factor 2.0) · governs	9.75	13.57	122
PRS design flow (+10%)	10.73	14.92	134

Trolley sizing & refills

Gas needed per working trolley	39.0 kg
Selected model	CBG-06 (6 × 50 WL)
Usable CBG per trolley	56.4 kg
Trolley lasts at average use	11.6 h (1.4 days)
Refills per month	20.8
Footprint per trolley (H × W × D)	1550 × 1935 × 645 mm

PRS stage 2 will be set to 500 mbar to match your burners.

Peak flow is estimated from typical meal-rush patterns. Add your burner count and kW rating for a firmer figure.

Get your quotation

Enter your details to see the price and download your quotation on Urjika letterhead.

Client / business name *Phone number *Contact personEmailAddress *

Fields marked * are mandatory. We use these details only to prepare your quotation and contact you.

Engineering estimate for budgeting. Final sizing and price are confirmed after a site survey. PRS stage 1: 250 → 4 bar; stage 2: 0.5–1 bar.

Our solution

CBG small cascade system + pressure reduction system

Standard models for fast delivery. We also design custom solutions for larger or special applications.

CBG cascade trolleys

50 WL cylinders · 250 bar · 1 working + 1 standby

Model	Cylinders	Water capacity	CBG approx.	Dimensions H×W×D	Weight
CBG-01	1	50 WL	10 kg	1550 × 375 × 645 mm	100 kg
CBG-02	2	100 WL	20 kg	1550 × 645 × 645 mm	200 kg
CBG-04	4	200 WL	40 kg	1550 × 1290 × 645 mm	400 kg
CBG-06	6	300 WL	60 kg	1550 × 1935 × 645 mm	600 kg
CBG-08	8	400 WL	80 kg	1550 × 2580 × 645 mm	800 kg
CBG-10	10	500 WL	100 kg	1550 × 3225 × 645 mm	1,000 kg

CBG approx. at 250 bar. Width scales with the number of cylinder pairs; height and depth stay constant. Final dimensions may vary ±50 mm. High-pressure hose to connect trolley and PRS is supplied to suit the site.

Pressure reduction skids (PRS)

Two-stage regulation · sized by peak flow

Model	Flow (kg/h)	Sm³/h	Recommended for
PRS-02	2	2.8	Canteen / small kitchen (1–2 burners)
PRS-05	5	7.0	Small restaurant (3–5 burners)
PRS-10	10	13.9	Medium restaurant / dhaba (6–10 burners)
PRS-20	20	27.8	Large kitchen / hotel / industrial (10+ burners)

Stage 1 inlet

250 bar

Stage 1 outlet

4 bar

Stage 2 outlet

0.5 – 1 bar

Burners needing 21–37 mbar require an additional appliance regulator after the PRS. Above 20 kg/h we design a custom skid or parallel skids.

Ideal for

Who switches from LPG to CBG

Restaurants & dhabas

Small and medium kitchens with 3–10 burners and tandoors running through lunch and dinner rushes.

Hotels & banquets

Large kitchens with 10+ burners, boilers and bulk cooking equipment.

Canteens & institutions

Corporate, factory, school, college and hospital kitchens with predictable daily demand.

Cloud kitchens & caterers

Multi-burner production kitchens that cannot afford to run out of gas.

Small industries

Bakeries, food processing, heat treatment and process heating that use LPG today.

Sites beyond the pipeline

Locations with no PNG connection that still want natural-gas-like convenience.

How we deliver

From enquiry to first flame

Before designing any CBG system we ask only three questions: how many LPG cylinders you use, how many hours you operate, and what pressure your burners need.

01
Share your LPG use
Use the calculator or tell us your cylinders, hours and burners.
02
Site survey
We check space, ventilation, appliances and the pressure they need.
03
Sizing & quotation
Trolleys, PRS and hose sized for your peak — with a firm quote.
04
Supply & installation
Trolleys and PRS built in-house, installed and leak-tested.
05
Commissioning & support
Burner changeover guidance, trial run, handover and service support.

FAQ

LPG to CBG — frequently asked questions

Q.How much CBG replaces one 19 kg LPG cylinder?

About 19.5 kg of CBG gives the same heat as one 19 kg commercial LPG cylinder (LPG ≈ 46.1 MJ/kg, CBG ≈ 44.9 MJ/kg net). That is roughly two 50 WL CBG cylinders filled at 250 bar.

Q.Can my existing LPG burners run on CBG?

CBG is mostly methane, like natural gas. Burners made for natural gas can use it directly. LPG burners need their injectors (nozzles) changed and air adjusted for natural gas before switching over. Our team checks your appliances during the site survey.

Q.What pressure does the pressure reduction skid deliver?

Our two-stage PRS reduces cascade pressure from 250 bar to about 4 bar in stage 1, and to 0.5–1 bar in stage 2. Burners that need 21–37 mbar need an additional appliance regulator after the PRS.

Q.How often will I need to refill CBG?

It depends on your consumption and trolley size. The calculator shows how long each trolley lasts and how many refills you need per month. A standby trolley keeps the kitchen running while the empty one is refilled.

Q.Is CBG safe to use in a commercial kitchen?

Yes, when installed correctly. The cascade trolley stays outside the kitchen in a ventilated area, cylinders and valves are PESO approved with a burst disc and fusible plug safety device, and the two-stage PRS supplies gas at a controlled low pressure.

Q.What is CBG?

CBG (Compressed Biogas) is biogas from organic waste that is purified to at least 90% methane (as per IS 16087) and compressed to about 250 bar. It is a renewable, cleaner-burning substitute for LPG and natural gas.

Q.Which PRS model do I need?

The PRS is sized for your peak flow, not your daily total. As a guide: PRS-02 for 1–2 burners, PRS-05 for 3–5 burners, PRS-10 for 6–10 burners and PRS-20 for 10+ burners. The calculator picks the model with a 10% design margin over your peak.

Let’s switch to CBG