NP25

Performance

 
Metric
Imperial
 
l/min / Bar
gpm / psi
Flow From
12.1
2.7
Flow To
70.1
15.5
Max Pressure
500
7250
 

Type

The NP25 is a 3 cylinder triplex pump.

 

Description

The Speck name is synonymous with quality and reliability. All our pumps are manufactured to the highest standards, using the latest in manufacturing technology.

The NP25 Range of pumps upholds this quality by providing:-

  • Solid ceramic plungers.
  • Double plunger sealing with leakage return.
  • All gaskets in seal sleeves ensuring precise centring and easy replacement.
  • Identical suction and discharge valves, easily replaceable
  • Pump easily configured for left and right hand drive.

The majority of spares for these pumps are available from stock.

 
Standard Models
Model
I/min
bar
rpm
KW
NP25/21-350
20.8
350
1450
14.8
NP25/21-280
21
280
1450
11.6
NP25/25-220
25.2
220
1450
11
NP25/30-180
31.4
180
1450
11.1
NP25/38-150
37.7
150
1450
11.1
NP25/41-140
40.6
140
1450
11.2
NP25/50-120
48.7
120
1450
11.5
NP25/70-100
70.1
100
1450
13.8

 

Special Models

RE - 316 Stainless Steel

T - Teflon Seals

V - Viton O Rings/Seals

C - CO² Version
Model
I/min
bar
rpm
KW
NP25/12-500
12.1
500
1450
12.3
NP25/15-500
14.8
500
1450
14.8
NP25/21-350 RE
20.8
350
1450
14.8
NP25/30-180 RE
3i.4
180
1450
11.1
NP25/38-150 RE
37.7
150
1450
11.1
NP25/41-140 RE
40.6
140
1450
11.2
NP25/50-120 RE
48.7
120
1450
11.5
NP25/41-140 REV
40.6
140
1450
11.2
NP25/50-120 REV
48.7
120
1450
11.5
NP25/21-350 REVT
20.8
350
1450
14.8
NP25/41-140 REVT
40.6
140
1450
11.2
NP25/50-120 REVT
48.7
120
1450
11.5
NP25/50-120 C
24.3
125
750

 
Download
 
General Information
Technical Information
NP25/12-500 (Approx 101 kb) (Approx 260kb)
NP25/15-500 (Approx 101 kb) (Approx 260kb)
NP25/21-350
NP25/21-280
NP25/25-220
NP25/30-180
NP25/41-140
NP25/50-120
NP25/70-100

For Information On Special pumps please contact us.

 
Construction Characteristics
  • Crankcase of solid cast aluminium.
  • Crank Case and roller bearings together with plain bearing con rod all run in oil.
  • Solid ceramic plunger.
  • Double plunger sealing with leakage return.
  • All gaskets in seal sleeves ensuring precise centring and easy replacement.
  • Identical suction and discharge valves, easily replaceable.
Materials Used
Valve Casing: Special Brass
Plunger: Ceramic
Valves: High-Grade Stainless Steel
Sleeves: Nitrile with fabric reinforcing.
Support Rings: Teflon with graphite.
Crankshaft: Drop-forged and case-hardened

 
Installation

SPECK TRIPLEX Plunger Pumps are suitable for pumping clean water and other non-agressive or abrasive media with a similar specific weight to water.

Prior to pumping any other media, a check must be made to find out whether these pumps , taking pump performance and temperature values into consideration, are at all suitable for pumping the required medium.

Even though SPECK-TRIPLEX NP25 pumps run almost pulsation-free, there are cases where a pressure accumulator is necessary. This will depend mainly on the construction of the unit and the conditions under which it is operated. The same effect can also be achieved by using flexible pressure lines. In any case, use of a pulsation damper adds considerably to the life of the seals and bearings. Particular care has to be taken when pumping warm water, making absolutely sure that cavitation can not occur.

 
Warranty
 There is a 6 month warranty in accordance with VDMA guidelines. Pump operation without safety valve as well as any excess in temperature or speed limits automatically voids the warranty. The safety valve must be regulated in accordance with the guidelines for liquid spraying units so that the admissible operating pressure can not be exceeded by more than 10%.
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