MENCARELLI POMPE E VALVOLE
in die pressed stainless steel since 1945
PAS series
Liquid-ring 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

Liquid-ring self priming pump able to handle liquids with dissolved gases and to operate at a depth of up to 6 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

Flammable liquids

For handling flammable liquids, explosion proof 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 ensure a greater safety, the pumps with Atex motors are fitted only with motors certified to operate in more hazardous environments (zone 2 category 2G), although the pump is classified for zone 2 category 3G
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
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" gas 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" gas 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" gas male thread
4.5 2800 Three-phase 245 231 217 211 202 187 181 172 156 140 - - - - -
6 2800 Three-phase 241 229 217 212 204 190 185 176 161 144 127 107 86 60 29
REF
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
REF
DESCRIPTION
MATERIALS
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
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°
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