PAS series
Side channel self priming stainless steel pump

Flow rate up to 240 lt/min
Head up to 60 mt
Operating temperature max 110°C
Operating pressure max 7 bar
Motors from 0.3 HP to 6 HP – 1400/2800 RPM
Entirely made of AISI 304/316 high thickness stainless steel
Suitable for aggressive liquids
Self-priming pump
Side channel self priming pump able to handle liquids with dissolved gases and to operate at a depth of up to 5 metres
Variable flow rate
The PAS series pumps are fitted with an internal bypass, which can be adjusted to partly reduce the flow rate
Reduced speed
Some models are supplied with a 1400 RPM motor, which ensures a softer and more gentle pumping action

High thickness pump casing
High thickness steel (3mm) which ensures a higher mechanical and corrosion resistance, and therefore a longer life
Zone at risk of explosion
To operate in zones at risk of explosion, motors compliant with Atex standards are supplied
Flow reversibility
On request, a motor that can reverse its direction of rotation is supplied, to ensure full flow reversibility
Stainless steel impeller
The impeller is made from microcasting of AISI 304 or 316 stainless steel. Its shape has been optimised to ensure a high hydraulic efficiency


Internal suction filter
The PAS series pumps are the only pumps fitted with an internal filter that allows any impurity in the fluid to be collected. The filter can be easily removed to carry out inspection and cleaning operations
Greater safety
To allow using PAS pumps in potentially explosive environments Atex motors are supplied

The PAS series pumps have the following features:
- Priming at a depth of up to 5 m with the pump filled
- Flow reversibility available on request
- Suction filter fitted to collect any impurity that may be present in the liquid
- Suitable for handling aggressive liquids
- Fitted with a bypass to partly adjust the flow rate/head
- High thickness steel (3mm) which ensures a higher mechanical and corrosion resistance, and therefore a longer life
- High hydraulic efficiency
- Explosion proof motors can be provided to pump flammable liquids
- Microcast impeller from AISI 304/306 stainless steel
- Mechanical seal with NBR, FPM or PTFE elastomers
Their resistance to chemical aggression makes them suitable for the chemical, pharmaceutical and textile industry, while their versatility makes them suitable for the wine-food industry.
On request, pumps can be supplied on a stainless steel carriage fitted with a switch/rotation direction inverter.
The pumps can also be supplied with DIN 11851, Garolla or Macon fittings.
Technical Specifications
Power and capacity are referred to working with water
MOD | MOTOR | FLOW RATE [lt/min] ± 5% | Ø PORTS | ||||||||||||||||
HP | RPM | TYPE | 0 mt | 5 mt | 10 mt | 12 mt | 15 mt | 20 mt | 22 mt | 25 mt | 30 mt | 35 mt | 40 mt | 45 mt | 50 mt | 55 mt | 60 mt | ||
A-110 | 0.3 | 1400 | Single-phase | 44 | 28 | 13 | 7 | – | – | – | – | – | – | – | – | – | – | – | Ø 1″ BSP male thread |
0.5 | 1400 | Three-phase | 44 | 28 | 13 | 7 | – | – | – | – | – | – | – | – | – | – | – | ||
0.5 | 2800 | Single-phase | 76 | 64 | 53 | 49 | 42 | 30 | – | – | – | – | – | – | – | – | – | ||
0.75 | 2800 | Three-phase | 79 | 68 | 57 | 53 | 47 | 36 | 32 | 25 | 15 | – | – | – | – | – | – | ||
A-130 | 0.75 | 1400 | Three-phase | 79 | 67 | 53 | 46 | 35 | 5 | – | – | – | – | – | – | – | – | – | Ø 1 ¼” BSP male thread |
1.5 | 2800 | Single-phase | 115 | 102 | 88 | 81 | 71 | 50 | – | – | – | – | – | – | – | – | – | ||
2 | 2800 | Three-phase | 124 | 114 | 104 | 100 | 94 | 83 | 79 | 72 | 62 | 51 | – | – | – | – | – | ||
2.5* | 2800 | Three-phase | 129 | 120 | 110 | 106 | 100 | 90 | 86 | 80 | 69 | 58 | 47 | 35 | – | – | – | ||
A-150 | 2.5* | 1400 | Three-phase | 136 | 121 | 102 | 93 | 76 | 34 | 9 | – | – | – | – | – | – | – | – | Ø 1 ½” BSP male thread |
4.5* | 2800 | Three-phase | 245 | 231 | 217 | 211 | 202 | 187 | – | – | – | – | – | – | – | – | – | ||
6* | 2800 | Three-phase | 241 | 229 | 217 | 212 | 204 | 190 | 185 | 176 | 161 | 144 | 127 | 107 | 86 | 60 | 29 |
*The electrical power of these models may vary according to the brand of the motors and the Atex execution. However, the performance of the pump remains unchanged.

RIF | DESCRIPTION | MATERIALS |
1 | Flange | Stainless Steel |
2 | By-Pass Cap Screw | Stainless Steel |
3 | Washer | Stainless Steel |
4 | By-Pass Cap | Stainless Steel |
5 | Piston | Stainless Steel |
6 | Piston O-Ring | NBR or FPM |
7 | Spring | Stainless Steel |
8 | Valve | Stainless Steel |
9 | Casing Suction Side | AISI 304 or 316 Stainless Steel |
10 | Body Seal Ring | NBR or FPM |
11 | Impeller Screw | Stainless Steel |
12 | Impeller Screw O-Ring | NBR or FPM |
13 | Impeller | AISI 304 or 316 Stainless Steel |
14 | Seal Rotating Part | Graphite, Stainless Steel, NBR or FPM or PTFE |
15 | Seal Fixed Part | Ceramic, NBR or FPM or PTFE |
16 | Compensation Ring | Steel |
17 | Casing Delivery Side | AISI 304 or 316 Stainless Steel |
18 | Spacing Ring | AISI 304 or 316 Stainless Steel |
19 | Electric Motor | ——- |
21 | Washer | Steel |
22 | Filter Cap | AISI 304 or 316 Stainless Steel |
23 | Filter Cap Seal | NBR or FPM or PTFE |
24 | Filter | AISI 304 or 316 Stainless Steel |
25 | Tie Rod | Stainless Steel |


MOD | MOTOR | Dimensions [mm] | α [deg] | Ø PORTS | ||||||||||||||
HP | RPM | A | B | C | D | E | F | G | H | I | L | M | N | O | P | |||
A-110 | 0.3 | 1400 | 345 | 182 | 72 | 75 | 90 | 50 | 130 | 101 | 8 | 27 | 58 | 112 | 137 | 10 | 25° | 1″ |
0.5 | 1400 | 188 | ||||||||||||||||
0.5 | 2800 | 182 | ||||||||||||||||
0.75 | 2800 | 188 | ||||||||||||||||
A-130 | 0.75 | 1400 | 400 | 208 | 80 | 87 | 100 | 55 | 158 | 122 | 10 | 30 | 74 | 125 | 155 | 10 | 25° | 1 ¼” |
2 | 2800 | 410 | 225 | 90 | 90 | 100 | 62 | 158 | 125 | 10 | 30 | 74 | 140 | 175 | 12 | 25° | ||
2.5 | 2800 | 435 | 225 | 90 | 90 | 125 | 62 | 158 | 150 | 10 | 30 | 74 | 140 | 172 | 13 | 25° | ||
A-150 | 2.5 | 1400 | 485 | 255 | 100 | 97 | 140 | 73 | 175 | 170 | 12 | 41 | 71 | 160 | 198 | 13 | 25° | 1 ½” |
4.5 | 2800 | 518 | 280 | 112 | 108 | 140 | 95 | 175 | 172 | 13 | 41 | 71 | 190 | 227 | 17 | 25° | ||
6 | 2800 | 520 | 280 | 112 | 110 | 140 | 95 | 175 | 172 | 13 | 41 | 71 | 190 | 227 | 17 | 25° |