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Water in hydraulic, lubrication, power transmission and insulating fluids adversely affects fluid performance and is a threatens to system reliability.
Water contamination promotes corrosion and fluid system component wear, resulting in reduced component life and increased maintenance costs. It also degrades fluid properties, reducing lubricity and load-carrying ability, oil oxidation and the resultant formation of acids, and additive precipitation. The consequences are reduced fluid service life and increased fluid procurement and disposal costs.
The Pall HNP023 Series Oil purifier is designed for small to medium oil systems, particularly where high viscosity fluids are employed. They can effectively remove 26 liters of water per day from the oil*.
The Pall HNP hydraulic fluid conditioning purifier uses vacuum dehydration to remove 100 % free water and as much as 90 % of dissolved water. It will also remove 100 % of free and entrained gases and up to 80 % dissolved gases.
Vacuum dehydration is the most effective method of water removal at minimum cost and ease of use. Unlike other methods, it removes both free and dissolved water and cannot burn or otherwise significantly alter the properties of the oil.
Particulate contaminant removal is achieved using high performance rated (ß3(c) >2000) Athalon® filter elements.
In addition, a WS12 Series water sensor measures water content and temperature at fluid conditioning the purifier inlet, allowing the purifier to operate only when the water content rises above a pre-determined level.
* Water removal rates are affected by the fluid viscosity, temperature, form of water (free or dissolved), and the amount of water present. Pall utilizes a well-defined and repeatable test procedure that ensures thorough water dispersion in the test fluid initially and throughout the test. The water removal rate shown is for tests with ISO VG 32 mineral-based turbine lube oil at 60 °C in the range of 2.6% to 1.4% water. The removal rates at higher water concentrations will be significantly higher.
Select the HNP023 oil purifier for:
- High-performance water, gas, and particulate removal
- Extension of fluid service life
- Minimized corrosion within systems
- Reduced fluid disposal
- Reduced operating costs
- Increased equipment reliability
- Simple automated operation
- Remote monitoring option
Removing free water is never enough!
1. Initial water content is above saturation (free water).2. Maximum water removal capability of ‘free water removal’ devices (coalescers, centrifuges, etc.) is to the oil’s saturation point.
3. Water content achieved with vacuum dehydration is significantly below the oil’s saturation point.
4. Water content achieved with vacuum dehydration remains below the oil’s saturation point even after oil is cooled by the system heat-exchanger cools the oil. This prevents the formation of free water, which is detrimental to fluid system components and the fluid.
5. If only free water is removed at the initial temperature, when oil is cooled, the amount of free water in the oil can increase significantly.
Specifications
| Dimensions: | 1348 mm x 578 mm x 1504 mm |
| Dry mass: | 250 kg (551 lb) |
| Inlet/Outlet connections: | See table 3 below |
| Max. Recirculation Flow rate: | 25 L/min (6.6 US gpm) |
| Water removal rate*: | 26 L/day (6.8 US gpd) |
| Inlet pressure: | 1.5 barg (21.8 psi g) maximum |
| System back pressure: | 4.6 barg (66.7 psi g) maximum |
| Fluid temperature: | +10 ºC (50 °F) to +70 ºC (158 °F) |
| Fluid viscosity: | 700 cSt maximum |
| Operating vacuum: | -0.6 bar g (18” Hg) to -0.9 bar g (27” Hg) [adjustable] |
| Power supply: | See Table 1 |
| Total Motor power: | 2.22 kW maximum |
| Materials of Construction | |
| Base frame: | Carbon Steel, painted |
| Vessel: | 304 Stainless steel |
| Hydraulic fittings: | Zinc plated carbon steel |
| Control box: | Carbon steel, painted |
| Hydraulic hoses and seals: | Fluorocarbon |
Note: Pall fluid conditioning purifiers comply with all applicable EC directives and bears the CE mark.
Performance
HNP022 Performance
The HNP Oil purifier is designed to reduce and maintain the water content in a fluid system to below the saturation level of the system fluid ( < 300 ppm for a typical mineral oil). However, where a significant large water ingress occurs, the HNP022 can remove up to 12 gallons (45L) per day. The actual water removal rate depends on many variables, including system design, oil type, temperature, viscosity, water content, emulsion stability, and additives.Type
Use
Ordering Information
Purifier
P/N: HNP023 [Table 1/Code 1][Table 1/Code 2] Z [Table 2][Table 3][Table 4][Table 5]
Note: Z indicates fluorocarbon seals and chlorinated polyethene hoses are standard. Other options are available; contact Pall.
Please select only from the following list of standard purifier options:
| HNP023S3ZCPENA HNP023S3ZCPENB HNP023S3ZCPENC HNP023S3ZCPEND HNP023S3ZCPDEA HNP023S3ZCPDEB |
HNP023S3ZCPDEC HNP023S3ZCPDED HNP023S3ZCPFRA HNP023S3ZCPFRB HNP023S3ZCPFRC HNP023S3ZCPFRD |
HNP023S3ZCPITA HNP023S3ZCPITB HNP023S3ZCPITC HNP023S3ZCPITD HNP023T3ZCPENA HNP023T3ZCPENB |
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Table 1 - Standard Voltage/Frequency Options
| Code 1 | Voltage | Code 2 | Frequency | Control Voltage |
| S | 400 Vac | 3 | 50 Hz, 3Ø | 24 Vdc |
| T | 415 Vac | 3 | 50 Hz, 3Ø | 24 Vdc |
Standard voltages only listed. Other voltages will be available on request - price and lead time will be provided on application.
Table 2 - Mounting Options
| Code | Mounting Type |
| C | Castor - Ø6”, 2 x fixed / 2 x swivel |
Table 3 - Process Port Connection Options
| Code 1 | Type | Inlet | Outlet |
| P | Parallel | G1 ½ male to ISO228 c/w bonded seal surface |
G1 male to ISO228 c/w bonded seal surface |
Table 4 - Language Options
| Code | Language |
| DE | German |
| EN | English |
| FR | French |
| IT | Italian |
Table 5 - Optional Factory Fitted Kits
| Code | Kit |
| A | No optional kit(s) fitted |
| B | 5m electrical cable, socket and plug, in accordance with IEC60309 to electrically connect the purifier |
| C | Gauge points, inlet and outlet pressure gauges and an inlet sight flow indicator to allow fluid condition and pressures to be monitored |
| D | Both kits B and C |
Replacement filter element P/N: UE310AZ20Z (ß3(c) >2000)
Other filter ratings available on application
Replacement Air Breather P/N: HC0293SEE5
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