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SPRAY NOZZLES AND ACCESSORIES CATALOG
Download the PNR Italia catalog to explore the complete range of quick-release nozzles and accessories for industrial applications.
Our company offers a range of services to its customers including a laboratory equipped for spraying tests, a dedicated department for CFD simulations, one dedicated to certifications and specific ongoing support for engineering companies, plant engineers and OEMs.
Whether designing, testing, measuring or simulating, PNR Italia ‘s expertise is what you are looking for.
QUALITY AND CERTIFICATIONS
Discover PNR Italia’s company and product certifications.



HIGH IMPACT CLEANING DEVICE
UBA series devices produce water jets from a spray head rotating around a vertical axis. However, they feature a sophisticated design where a simple friction motor puts the head in slow motion. As the motor produces a low rotation velocity, the jets can work with their maximum efficiency since they are not broken into droplets: this makes it possible to obtain a higher impact force onto the tank wall. The head design can include one jet directed upwards meant to clean the tank roof area around the feed pipe, a difficult area in many instances, realizing a true 360° spray pattern.
Superior cleaning power, faster cleaning cycles, and lower volumes of cleaning solution are among the main advantages of this product. UBA washing heads are available in two sizes and three different jet patterns, as shown in the table below. Depending upon feed pressures, the rotation speed varies between 5 and 12 rpm. Thread connections are available in BSP standard (last letter of the code: G) and NPT standard (last letter of the code: N).
The UBA tank washing head is designed to accommodate a wide range of different nozzles on its head, both in number and type (flat fan, straight, etc.). Every personalization involves some difference in the performance compared to the ones in the table: they will be provided case by case.
Our UBA tank washing head is ATEX compliance available: this certification is valid only for AISI 316L Stainless Steel and Alloy C22 materials. Washing liquid temperature must be ≤ 90°C.

180° down
270° down
360°

lpm @ 3 bar: 50.0 min / 110 max
gpm @ 40 psi: 12.7 min / 38.2 max

Body, sphere:
AISI 316L s.s.
Alloy C22 (on request)
Bushings, motor ring:
PTFE

Female BSP 3/4″ – 1-1/2″
NPT

Declaration of Conformity for MOCA (Materials and Objects in Contact with Food).

ATEX refers to two EU Directives regulating equipment management and workplaces at risk of explosion.
CODE |
RF |
FLOW RATE (lpm)
|
SPRAY PATTERN
|
H |
D |
|||||
inch |
3,0 |
5,0 |
7,0 |
10 |
180° down |
270° down |
360° |
mm |
mm |
|
| UBA 2500 B31BG | 3/4″ | 50,0 | 64,5 | 76,3 | 91,3 | • | 166 | 50 | ||
| UBA 2500 B31DG | 50,0 | 64,5 | 76,3 | 91,3 | • | |||||
| UBA 2500 B31EG | 50,0 | 64,5 | 76,3 | 91,3 | • | |||||
| UBA 3150 B31EG | 1-1/2″ | 110 | 142 | 168 | 200 | • | 216 | 71 | ||
The UBA washing head is designed to accommodate a wide variety of nozzles in its sphere, both in number and type of spray (i.e., dart jet, blade, etc.). Each of these customizations involves a variation consistent with the performance compared to the table versions, which will be provided from case to case.
In the case of an NPT thread, the last letter of the code will be N instead of G. The version in L61 differs from that in B31 only for the material of realization, while the performances, dimensions, and modalities of connection remain the same.
Code |
RF |
Flow rate (gpm)
|
Spray pattern
|
H |
D |
|||||
inch |
40 |
70 |
100 |
140 |
180° down |
270° down |
360° |
inch |
inch |
|
| UBA 2500 B31BG | 3/4″ | 12,7 | 16,8 | 20,1 | 23,8 | • | 6,49 | 1,85 | ||
| UBA 2500 B31DG | 12,7 | 16,8 | 20,1 | 23,8 | • | |||||
| UBA 2500 B31EG | 12,7 | 16,8 | 20,1 | 23,8 | • | |||||
| UBA 3150 B31EG | 1-1/2″ | 38,2 | 50,5 | 60,4 | 71,5 | • | 9,06 | 2,76 | ||
The UBA washing head is designed to accommodate a wide variety of nozzles in its sphere, both in number and type of spray (i.e., dart jet, blade, etc.). Each of these customizations involves a variation consistent with the performance compared to the table versions, which will be provided from case to case.
In the case of an NPT thread, the last letter of the code will be N instead of G. The version in L61 differs from that in B31 only for the material of realization, while the performances, dimensions, and modalities of connection remain the same.
Do you have any questions?
Send us a message and we will reply as soon as possible.
Download UBA technical drawings
Download Datasheet (PDF)
| De | External diameter | mm | L, L1 |
Width | mm | RF | Female thread | inch |
| Di | Inner diameter | mm | LP | Max working pressure | bar | RG | Male thread | inch |
| Dia | Orifice diameter | mm | LT | Max working temperature | °C | W | Weight | kg |
| DN | Nominal diameter | — | Q | Capacity | l/min | WR | Wetting radius | m |
| H, H1 |
Height | mm |