DIPRA ENGINEERS PVT LTD

:: Boilers

:: GROBO SERIES PRODUCTS

GROBO is the first boiler manufacturer that has been certified with ISO 9001 in Taiwan, being a specialist in design & manufacture of boilers, pressure vessels, air heating systems and piping projects. Since established in 1986, with the concept of “Growth Permanence, and Excellence” and the quality policy of “ To create the frontiers and to strive for practicavility”, we always hold to sincere attitude and keep to the perfect service to gain customers’ trust and good comment.

TDF 4200kg Fire Tube Boiler Prima Ceylon Ltd,Trincomalee Supply & commissioning December 2005

Ink transfer system pipeline at Wijaya News Paper Ltd, Hokanadra Design ,supply & commissioning September 2007

Once Through Steam Boiler & Steam Distribution line at Trendy Connection Design, supply & commissioning June 2003

Steam distribution line at Browns Beach Hotel ,Negambo design ,supply & commissioning September 2008

:: TDS - Once Through Boiler

The TDS boiler contains the perfect safety equipment including: low water-level interruption warning, ignition failure interruption warning, pressure-limit apparatus, safety valve, and over-temperature interruption apparatus...Multi protection makes you safe.

The fully automatic control system with easy operation can make a boiler reach normal operation just after 3-5 minutes from start-up, and no operator is required to keep an aye on it. Because of time- saving, labor- saving, no inspection, and no license of operator, it is a wise choice for you.

** Click here to view Specification

Item	Type	TDS-010	TDS-020	TDS-030	TDS-050	TDS-060	TDS-080	TDS-100	TDS-150	TDS-200
Vaporization	Kg/hr	100	200	300	500	600	800	1000	1500	2000
Heat Produce	Kcal/hr	53,900	107,800	161,700	269,500	323,400	431,200	539,000	808,500	1078,000
Heating surface	M2	3.4	3.4	4.8	7.5	9.9	9.9	9.9	9.9	9.9
Max Working Pressure	Kg/cm2	10
Qty Water	L	48	66	89	120	145	145	164	164	164
Weight Product	Kg	450	450	690	980	1280	1850	1890	2250	2300
Diesel	Kg/hr	5.2	10.5	15.7	26.2	31.4	41.9	52.3	78.5	104.7
B Heavy Oil		5.5	11.0	16.5	27.5	33.0	44.0	55.0	82.5	110.0
C Heavy Oil		5.6	11.1	16.7	27.8	33.3	44.5	55.6	83.4	111.1
LNG Gas	NM3/hr	6.1	12.1	18.2	30.3	36.3	48.4	60.6	90.8	121.1
LPG Gas	Kg/hr	4.5	9.0	13.5	22.5	27.0	35.9	44.9	67.4	89.8
Type of control		ON-OFF			HIGH-LOW-OFF
Type of Burning		FORCED-DRAFT PRESSURIZED ATOMIZIG

:: TDF - Fire Tube Boiler

Being suitable for the structure of human body.
The whole design, from the construction of combustion and feed water system to all components, is suitable for human body. Owing to the practically and durability, TDF can keep the production line normal for long time and more efficient.

Multiple protective devices
The TDF type boiler has the most reliable water level control system, like low water level interrupter, photoelectric cell for abnormal combustion, burning interrupter while the door of burner is opened, pressure limiter and safety valves etc. For the principle of safety first, we adopt direct waterless sensor to ensure customers safety.

High combustion efficiency
In order to reach higher combustion efficiency under the characteristics of different fuel. We cooperated within the original burner manufacture to design the special win box and fuel for keeping the special combustion efficiency up to 89% .Therefore; we can cost down the fuel consumption and increase the efficiency of your investment.

** Click here to view Specification

Description		TDF-12K	TDF-18K	TDF-24K	TDF-30K	TDF-36K	TDF-42K	TDF-48K	TFD-54K	TDF-60K	TDF-72K	TDF-84K	TDF-96K	TDF-108K
Vaporization	Kg/hr	1200	1800	2400	300	3600	4200	4800	5400	6000	7200	8400	9600	10800
Radiation (Heat) x 103	Kcal/hr	647	970	1294	1616	1941	2263	2587	2910	3234	3881	4526	5175	5819
Oil Consumption	Kg/hr	75	112	150	169	225	262	299	337	376	450	524	600	674
Boiler horse power	BHP	76	115	153	192	230	269	307	346	364	461	536	616	692
Max.steam valve	mmØ	65	65	80	100	100	125	125	125	150	150	150	150	150
Safety valve	mmØ	25	40	40	40	40 50	50 50	50 50	50x2	50x2	50x2	50x2	50x3	50x3
Feed water valve	mmØ	25	32	40	40	40	40	40	40	50	50	50	50	50
Drain valve	mmØ	40	40	50	50	50	50	50	50	50	50	50x2	50x2	50x2
Boiler efficiency	%	88

:: TDE - Automatic Electric Steam Boiler

FEATURES

SAVE TIME	-	The electric heating tubeis used by segmental switch and heating control , take about 5 minutes to turn water into steam save about 4 hours per day.
LABOUR SAVING	-	Full automation in water-feeding easy to operate, with alarm system.
SAVE SPACE	-	Small - sized. Can be installed in tall buildin downtown areas
SAVE POWER	-	Special inner structure , high thermo efficiency , dry by steam up , no moisture.

** Click here to view Specification

TYPE	TDE-08	TDE-12	TDE-18	TDE-24	TDE-36	TDE-48	TDE-72
MAX WORKING PEWAAURE	7Kg/cm2	7Kg/cm2	7Kg/cm2	7Kg/cm2	7Kg/cm2	7Kg/cm2	7Kg/cm2
HYDRAULIC TEST PRESSURE	13Kg/cm2	13Kg/cm2	13Kg/cm2	13Kg/cm2	13Kg/cm2	13Kg/cm2	13Kg/cm2
EFFICIENCT	100%	100%	100%	100%	100%	100%	100%
POWER LOAD	8kw	12kw	18kw	24kw	36kw	48kw	72kw
EQUIVALENT EVAPORATION	12Kg/H	19Kg/H	28Kg/H	38Kg/H	57Kg/H	76Kg/H	115Kg/H
FEED WATER PUMP MOTOR	1/2HP	1/2HP	1/2HP	1/2HP	1/2HP	1/2HP	1/2HP

:: TDA-Air Heating system

TDA-Air heating system are gas burners designed to operate in an airflow with minimum speed of 0.5 M / sec. In air ducts , where TDA is installed, the products of combustion are mixed directly with airflow to be superheated. The design guarantees high efficiency and clean combustion . For the production of large volumes of hot air in industrial processes such as drying of products , spray booths, heating of work environments etc., our elaborating is the be3st consideration .

:: TDH -Thermal Oil Heater

Thermal Oil Heater use thermo-oil as heat source, that is to say, we heat the thermo-oil in boiler first and deliver it to heat exchanger with high - pressure pump. After releasing heat, thermo-oil will be returned to the boiler to be reheated. The nature of thermo-oil is different from water; though the saturated temperature is low , it still obtains the high - temperature thermal energy. Because the pressure of TDH is lower than of steam boiler , it is the best consideration for high temperature environment.