Project Description
SHOWER PIPE

Materials
Hand Wheel: Carbon Steel
Pipes Parts: AISI 304
Machined Parts: AISI 316L
Gasket: PP, FASIT OIL
Inlet Connection
1-1/2″ or 2-1/2″
Outlet Connection
Ø48 or Ø60
SHOWER PIPE

Materials
Hand Wheel: Carbon Steel
Pipes Parts: AISI 304
Machined Parts: AISI 316L
Gasket: PP, FASIT OIL
Inlet Connection
1-1/2″ or 2-1/2″
Outlet Connection
Ø48 or Ø60
SHOWER PIPE
.

Materials
Hand Wheel: Carbon Steel
Pipes Parts: AISI 304
Machined Parts: AISI 316L
Gasket: PP, FASIT OIL
Inlet Connection
1-1/2″ or 2-1/2″
Outlet Connection
Ø48 or Ø60
SELF-CLEANING SHOWER PIPES
Self-cleaning shower pipes are used in the pulp and paper industry for washing and cleaning forming fabrics and felts. There are two kinds of pipes:
- Low pressure (2 ÷ 6 bar) fixed pipes with flat fan nozzles (PNR nozzle: GE)
- High pressure (25 ÷ 70 bar) oscillating pipes with straight jet nozzles (PNR nozzles: GEA)
Both fixed and oscillating pipes must have the following characteristics:
- presence of a cleaning system that cleans the nozzles with simultaneous discharge of impurities;
- easy and fast activation of the cleaning system, without interrupting the spray and without problems for the operators;
- usage of nozzles that allow to save water and that never get blocked, eventually after a long
Shower pipes that satisfy these three characteristics have a structure made of three main parts:
- Assy Valve
- Assy Shaft
- Assy Pipe
The Assy Valve must allow the passage or the stop of the discharge flux, through the opening or the closing of a lock, moved by a shaft, manually activated by a hand wheel. This movement is used to activate the Assy Shaft. The Assy Valve is connected to the Assy Pipe through a flanged connection, and to the discharge pipes through a specific connection (thread or hose fitting).
The Assy Shaft is made by a pipe with specific brushes mounted on it; thanks to the connection with the shaft of the Assy Valve, it moves radially and axially. In this way, the brushes can remove the impurities both from the nozzles and from the inner part of the Assy Pipe.
The nozzles are assembled on the Assy Pipe, which is connected to the main pipe. Nozzles can be installed with specific welding nipples or through plastic pipe clamps (PNR code: ZPH).
A | First Nozzle Position | mm | G | Outlet Connection | mm | R | Support Position | mm |
B | Nozzle Span | mm | H | Height | mm | S | Sleeve Span | mm |
C | Last Nozzle Position | mm | L | Standard Reference Lenght | mm | U | Hand Wheel Diameter | mm |
D | External Diamenter x Pipe widht | mm | M | Support Lenght | mm | V | Valve Lenght | mm |
E | Shaft Outer Diameter | mm | N | Nozzles Number | — | W | Nipple Lenght | mm |
F | Inlet Connection | inch | P | Nozzle Pitch | mm | α | Spray Angel | ° |
(1) | Assy Valve | — | (2) | Assy Shaft | — | (3) | Assy Pipe | — |

SHOWER PIPE
www.pnr.eu
info@pnr.it
+39 0383 344611
Self-cleaning shower pipes are used in the pulp and paper industry for washing and cleaning forming fabrics and felts. There are two kinds of pipes:
- Low pressure (2 ÷ 6 bar) fixed pipes with flat fan nozzles (PNR nozzle: GE)
- High pressure (25 ÷ 70 bar) oscillating pipes with straight jet nozzles (PNR nozzles: GEA)
Both fixed and oscillating pipes must have the following characteristics:
- presence of a cleaning system that cleans the nozzles with simultaneous discharge of impurities;
- easy and fast activation of the cleaning system, without interrupting the spray and without problems for the operators;
- usage of nozzles that allow to save water and that never get blocked, eventually after a long
Shower pipes that satisfy these three characteristics have a structure made of three main parts:
- Assy Valve
- Assy Shaft
- Assy Pipe
The Assy Valve must allow the passage or the stop of the discharge flux, through the opening or the closing of a lock, moved by a shaft, manually activated by a hand wheel. This movement is used to activate the Assy Shaft. The Assy Valve is connected to the Assy Pipe through a flanged connection, and to the discharge pipes through a specific connection (thread or hose fitting).
The Assy Shaft is made by a pipe with specific brushes mounted on it; thanks to the connection with the shaft of the Assy Valve, it moves radially and axially. In this way, the brushes can remove the impurities both from the nozzles and from the inner part of the Assy Pipe.
The nozzles are assembled on the Assy Pipe, which is connected to the main pipe. Nozzles can be installed with specific welding nipples or through plastic pipe clamps (PNR code: ZPH).
Materials
Hand Wheel:
Carbon Steel
Pipes Parts:
AISI 304
Machined Parts:
AISI 316L
Gasket:
PP, FASIT OIL
Inlet Connection
1-1/2″ or 2-1/2″
Outlet Connection
Ø48 or Ø60



This table shows the minimum and the maximum values, for the pipes already produced by PNR Italia. Please contact us for any particular request!
PNR Italia 27058 Voghera (PV) Italy – Via Gandini 2
Phone: +39 0383 344611 Fax: +39 0383 212489 E-mail: info@pnr.it