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FDI-P Series (High Pressure Range) – DelPET

Specially designed for the PET bottle manufacturing process

Range

18.0 m3/hr to 850.0 m3/hr (Pressure Range 18-45 kg/cm²g)

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Product Brochure

Technical Specification

Product Manual

Overview Working Technical Specification

A refrigeration dryer is a system designed to remove moisture from compressed air by cooling it. It plays a vital role in industrial applications, ensuring that compressed air remains dry and free from water vapour, which can otherwise cause corrosion, damage equipment, and reduce efficiency.

Key Features

Available in 17 standard models
Provides best pressure dew point from +3°C to + 4°C
Operating pressure ranges from 18-45 kg/cm²(g)
Equipped with del-Smart controller to read out dew point, operating pressure, fault indication, service alarm, etc.
Proprietary design heat exchanger
Filled with eco-friendly refrigerant gas i.e., R134a, R407C
Following quality standards of ISO 8573-1:2010
Especially Designed at Tropical Site Parameters
Available with energy saving controls

Std. Design Parameters

Operating Pressure : 40 kg/cm²(g)
Max. Working Pressure : 45 kg/cm²(g)
Air Inlet Temperature : 45°C
Ambient temperature : 45°C
Cooling Water Inlet Pressure : 3-6 kg/cm²(g)
Cooling Water Inlet Temperature : 32°C
(For water-cooled versions)

How Does it Works

Delair Refrigeration Dryers operate at high pressure of up to 40 bar. They are based on cooling the air to near freezing point to remove moisture. At nominal conditions, the cold, dry air is reheated by incoming air to approximately 10°C below the incoming compressed air temperature.

The dryer consists of an air drying unit with a centrifugal cum demister pad condensate separator and a refrigeration circuit. The refrigeration circuit consists mainly of a compressor, a condenser, a receiver, a vapour liquid accumulator with liquid refrigerant and an evaporator.

The air drying unit consists of two kinds of heat exchangers: air-to-air heat exchangers and refrigerant-to-air heat exchangers.

MODEL	CAPACITY IN CFM PRESSURE IN KG/CM2(G)		DIMENSIONS (IN MM)			APPROX. WT. (IN KG.)	CONNECTION (IN INCHES)		CONN. LOAD (IN KW)	WATER QTY. (IN M3/HR)
MODEL	25	40	L	W	H~	APPROX. WT. (IN KG.)	AIR	WATER	CONN. LOAD (IN KW)	WATER QTY. (IN M3/HR)
FDI-P-18 A	12	12.5	880	465	700	90	1/2″ BSP.	—	0.30	—
FDI-P-54 A	37	38	880	465	700	90	1/2″ BSP.	—	0.53	—
FDI-P-110 A	76	78	880	465	830	100	3/4″ BSP.	—	0.70	—
FDI-P-150 A	103	105	1100	465	930	270	1″ BSP.	—	0.75	—
FDI-P-180 A	123	127	1100	465	930	270	1″ BSP.	—	0.75	—
FDI-P-220 A	151	155	1100	465	930	270	1″ BSP.	—	1.06	—
FDI-P-290 A	198	203	1100	465	930	270	1″ BSP.	—	1.06	—
FDI-P-360 A	247	253	1250	750	1150	400	2″ F	—	1.70	—
FDI-P-430 A	296	304	1250	750	1150	400	2″ F	—	2.23	—
FDI-P-540 A	370	380	1250	750	1150	400	2″ F	—	2.63	—
FDI-P-600 A	414	424	1676	725	1210	350	2″ F	—	2.82	—
FDI-P-720 A	494	507	1676	725	1210	600	3″ F	—	3.16	—
FDI-P-850 A	583	598	1676	725	1210	600	3″ F	—	3.94	—
FDI-P-540 W	370	380	1250	750	1150	380	2″ F	3/4″ BSP.	1.87	1.1
FDI-P-600 W	414	424	1676	725	1210	380	2″ F	3/4″ BSP.	1.87	1.8
FDI-P-720 W	494	507	1676	725	1210	520	3″ F	3/4″ BSP.	2.19	1.8
FDI-P-850 W	583	598	1676	725	1210	520	3″ F	3/4″ BSP.	2.48	1.8

Industries

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Frequently Asked Questions

The Delair FDI Series – Standard Series offers compact, lightweight, and cost-effective solutions, eliminating the need for extensive floor space. With a small footprint, it integrates commercial unit aesthetics with industrial ruggedness. Featuring high-performance desiccant rotors and optional stainless steel construction, it’s versatile, applicable to diverse industries. Its largest capacity range (170 CMH to 4500 CMH) suits pharmaceuticals, food processing, electronics, and more. Simple operation and the patented EcoDry rotor technology ensure efficient moisture control, making it an indispensable, little giant in industrial dehumidification, ideal for various applications worldwide.