Danfoss NPS Data sheet

Data Sheet

Plug and Spray Unit

NPS

hpp.danfoss.com

Data sheet | Plug & Spray unit NPS

Table of Contents	Contents
	1.	General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
	2.	Component description . . . . . . . . . . . . . . . . . . .	. . . . . . . . . .	. .	.	5
	2.1	PAHT high-pressure pump . . . . . . . . . . . . . . . . . .	. . . . . . . . .	. . . . 5
	2.2	Electric motor . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . 5
	2.2.1	Danfoss FCP 106 drive motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
	2.3	Aluminium cast bell housing and flexible coupling . . . . . .	. . . . . . . . . . . . . 5
	2.4	Galvanized steel frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
	2.5	Connection block . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . .	. .	.	5
	2.6	Water filter . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . .5
	2.7	Electrical connection box, optional . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
	2.8	Supply pressure gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
	2.9	Pressure relief valve VRH 5 (30) CA cartridge . . . . . . . . .	. . . . . . . . . .	. .	.	5
	2.10	Filter bleed button . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . .	. . . . 5
	2.11	High-pressure gauge . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . .	. . . . 5
	2.12	Check valve - inlet 3/4” . . . . . . . . . . . . . . . . . . . .	. . . . . . . . .	. . . . 5
	2.13	Ball valve G 3/8” female . . . . . . . . . . . . . . . . . . .	. . . . . . . . . .	. .	.	5
	2.14	Inlet G 3/4” female . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . .	. . . .5
	2.15	High-pressure outlet G 3/8” female, optional . . . . . . . . .	. . . . . . . . . .	. .	.	5
	2.16	High-pressure hose . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . .	. .	.	6
	2.17	High-temperature switch . . . . . . . . . . . . . . . . . . .	. . . . . . . . .	. . . .6
	2.18	Low-pressure hose . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . .	. . . . 6
	2.19	MBS 3050 pressure transmitter . . . . . . . . . . . . . . . .	. . . . . . . . .	. . . . 6
	2.20	Low-pressure switch . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . .	. . . .6
	2.21	Check valve - outlet . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . .	. .	.	6
	2.22	Swivel union 3/4” . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . 6
	3.	P&ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
	4.	Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
	5.	Dimensions [mm] . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . . . 8
	6.	Local control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
	7.	Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
	8.	Electrical connection box . . . . . . . . . . . . . . . . . . .	. . . . . . . . .	. .	.	10

2	AI309730711498en-000901 | 02.2021

Data sheet | Plug & Spray unit NPS

1.General information The Danfoss Plug & Spray unit is designed for

humidification and adiabatic cooling systems based on the high-pressure principle. The units are available in a constant speed version (CS) with IEC electric motor, as well as in a version with constant pressure control using a Danfoss FCP 106 variable speed drive motor (VS).

The Plug & Spray unit is available with 6 different pump sizes (see Technical data, sec. 4) to match the required flow demand. The motor power is dimensioned to provide design flow at

a system pressure of max. 100 barg or 1,450 psig.

The Danfoss high-pressure axial piston pumps provide excellent pressure stability at high energy efficiency and low noise level. Pulsation dampeners are superfluous.

The Plug & Spray unit comprises all necessary components to ensure the best possible performance, maximum service life with maximum protection of the pump. It is very compact, requires very little space and is suitable for both wall and floor mounting.

The Danfoss Plug & Spray unit can be operated with ordinary tap water as well as with all kinds of technical water (distilled, de-ionised and demineralised water).

The Plug & Spray unit is suitable for a variety of applications, such as:

•High-pressure hymidification and adiabatic­ cooling in HVAC systems (Air-handling units) i.e. in offices, server rooms etc.

•Open space humidification system in production halls, storages etc.

•Humidification and adiabatic cooling in animal farms, greenhouses and composting, server rooms

•Electrostatic Discharge (ESD) control

•Adiabatic outdoor cooling i.e. in pools, bars, restaurants etc.

•Dust suppression and dust binding in manufacturing and clean rooms

•Gas turbine inlet cooling and NOx control

•Odour control and soil filters

•Water mist clouds in theme parks, exhibitions etc.

5

2

3

1

4

1	Pumps: PAHT 2 to PAHT 12.5
2	Electric motor, standard IEC or VS units with	4	Galvanized steel frame for floor mounting
	Danfoss FCP 106 Drive Motor	5	Very compact and reliable connection block,
3	Aluminium cast bell housing and flexible		see details on page 5
	coupling

AI309730711498en-000901 | 02.2021

3

Data sheet | Plug & Spray unit NPS

6

7

6 Water filter 5” or 10”,

10 μm absolute, β ≥ 5,000

7 Optional electrical box.

CS or VS versions available.

	10	11
8
	9		22
			12
21			15
			13
20		17
19	18	16	14

8	Supply pressure gauge 0-10 barg	16	High-pressure hose
9	Pressure relief valve VRH 5 (30) CA cartridge,	17	High-temperature switch
	adjustable 20–100 barg / 363–1450 psig
	(25–140 barg / 363–2031 psig)	18	Low-pressure hose
10	Filter bleed button	19	MBS 3050 pressure transmitter on VS-unit
11	High-pressure gauge	20	Low-pressure switch
12	Check valve - inlet ¾”	21	Check valve - outlet
13	Ball valve G 3/8” female	22	Swivel union 3/4”

14Inlet G 3/4” female

15High-pressure outlet G 3/8” female, optional

4	AI309730711498en-000901 | 02.2021