PA RL26 30.1790.00 User manual

Last Update: 07/07/10
1
RL26 Weeping – Spraygun 250 bar–25MPa
Technicalmanual: E138
Guns suitable for use up to 250 bar – 25 MPa rated pressure pumps. DN10
Always leaks a small quantity of fluid.
TECHNICAL SPECIFICATIONS
Maximum temperature 160°C (1)
P/N
RATED
PRESSURE
bar - MPa
PERMISSIBLE
PRESSURE
bar - MPa
MAX FLOW
RATE
I/min
WEEPING WITH
PRESSURE
2.8 bar – 0.3 MPa
l/min
INLET
OUTLET WEIGHT
gr
30.1790.00 250 - 25 280 - 28 30 1.1 ÷ 1.3 G3/8 G1/4 FF 380
30.1790.50 250 - 25 280 - 28 30 1.1 ÷ 1.3 3/8NPT 1/4NPT FF
380
30.1792.00 250 - 25 280 - 28 30 1.1 ÷ 1.3 G3/8 G1/4 FF 400
30.1795.00 250 - 25 280 - 28 30 0.6 ÷ 0.8 3/8NPT 1/4NPT FF
380
30.1794.00 250 - 25 280 - 28 30 0.6 ÷ 0.8 G3/8 G1/4 FF 400
(1) The gun has been designed for continuous use, at a water temperature of 90°C (195°F). It can resist a t the max
temperature of 160°C (320°F) for short periods only , as, when the gun shuts off, the heater continues to transmit the heat
to the water, thus increasing both temperature and pressure up to high, dangerous values.
Using the gun at a water temperature higher than 60°C involves for the operator the use of adequate safety devices,
such as gloves, glasses, etc.
Instruction manual, maintenance, installation, spare parts.
For a correct utilization, follow the directions of this manual
Re-print them on the Use and Maintenance booklet of the machine. n. 12.9138.00
•
30.1790.00 RL26 Weeping G3/8 G1/4 FF
• 30.1790.50 RL26 Weeping 3/8NPT 1/4NPT FF
• 30.1792.00 RL26 Weeping + SW8 G3/8 G1/4 FF
• 30.1795.00 RL26 Weeping (0.6) G3/8 G1/4 FF
• 30.1794.00 RL26 Weeping (0.6) + SW8 G3/8 G1/4 FF
- Covered by shockproof plastic semi-housings.
- Sst seat and ball.
- Internal structure in brass and Sst.
- Ergonomic construction.
- Minimum fatigue for trigger opening and use.

Last Update: 07/07/10
2
DIMENSIONAL DRAWING
INSTRUCTIONS
This product is to be utilized with clean fresh water, even slightly additivated with normal detergents. For use involving
different or corrosive liquids, contact the PA Technical department. Appropriate filtration should be installed when using
unclean liquids. Choose the gun in line with the data of nominal running (system rated pressure, max flow and max
temperature). In any case, the pressure of the machine should not exceed the permissible pressure rate imprinted on the
gun.
INSTALLATION
This gun was designed to operate with hot water (in compliance with the technical specs). Provide the plant generating
hot water with an equipment limiting the incidental increase of the fluid temperature.
Always fit a safety valve to protect the delivery conduct when the latter is under pressure.
Choose a suitable nozzle and ad just the valve mounted in the front of the gun, thus obtaining a constant supply and
avoiding unpleasant pressure spike when closing the system.
If the nozzle wears out, the pressure falls. When you install a new nozzle, adjust the system back to the original
pressure.
OPERATIONS
The gun opens and closes a high pressure conduct by means of a piston acting on a seat; the return is controlled by a
spring which releases the trigger. Attention: during pump activation always set the gun with its safety latch
connected in order to prevent accidental openings
WATER HOSE FEED
By high or very unsteady pressure values on delivery, it is necessary to mount a pressure reducer , both to level the flow
rate on delivery and to protect the system components.

Last Update: 07/07/10
3
PROBLEMS AND SOLUTIONS
PROBLEMS PROBABLE CAUSES SOLUTIONS
Excessive fluid loss
Seat and ball worn out
Solis slag pollution replace Fit adequate filters
Leaking seals Seals worn out replace
Difficult trigger opening High pressure inside circuit Control the bypass valve and adjust if
necessary
REGULATIONS
The design and construction of our products comply with: norm CEI EN 60335-2-79 first edition, published in 1999-03
and its respective variations on the project norm prEN 1829.
Read this manual before starting the assembly.
For a correct utilization, follow the directions described in this manual and re-print them on the Use and maintenance
manual of the machine.
The present manual is valid for all the guns named RL 26 Weeping
SPARES
Use original PA spares only in order to get both a correct operation and a long lasting, reliable product..
MAINTENANCE
Maintenance has to be carried out by Specialized Technicians.
STANDARD: every 400 working hours (circa 10,000 cycles), check and lubricate the seals with water
resistant grease.
SPECIAL: every 800 working hours( circa 20,000 cycles), check the wear of the seals and internal parts and
if necessary, replace with original PA parts, taking care during installation to lubricate with water resistant
grease.
CAUTION: re-assemble the gun restoring the original conditions.
The manufacturer is not to be considered responsable for damage as a result from incorrect fitting
and maintenance.
Technical data, descriptions and illustrations are indicative and liable to modification without notice.

Last updated 23/04/2016
30.1790.00 RL26 weep.gun 3/8M-1/4F Bsp (l.1,1)
30.1790.50 RL26 weep.gun 3/8F-1/4F Npt
30.1792.00 RL26 weep gun(1,1L)+sw8 3/8-1/4Bsp FF
30.1794.00 RL26 weep gun(0,6L)+sw8 3/8-1/4Bsp FF
30.1795.00 RL26 weep.gun 3/8M-1/4F Bsp (l.0,6)
Pos. P/N Description Q.ty K1K2K3K4 Pos. P/N Description Q.ty K1K2K3K4
1 30.1759.24 Casing-kit -RL26 +screws, Sst. 1 1
2 30.0703.51 Spring, 1,3x8,5x19 mm Sst. 1 10
3 10.3060.01 O-ring, 1,78x12,42 mm Ni 85 1 • • 10
4 30.0702.31 Plug, M14x1 brass 1 10
5 14.7448.00 Ball, 5/16" Sst. 1 • • 10
6 30.0716.20 Weep.seat,5,8mm+O-ring (l.1,1) 1 • 10
6 30.0710.20 Weep.seat, 6x11 mm+O-ring (l.0,6) (1) 1 • 10
7 30.0704.51 Piston, 3-4 mm Sst. 1 • • 10
8 14.3511.00 Washer, 3,2x7x0,5 mm sst. 1 • • 10
9 10.3165.00 O-ring, 2,62x2,84 mm Vi 70 1 • • 10
10 10.4018.00 Back-up ring, 3,2x7,5x1,2 mm 1 • • 10
11 30.1700.35 Central housing -RL26, 1/4F Bsp brass 1 5
11 30.1701.35 Central housing -RL26, 1/4F Npt brass (2) 1 5
12 30.0675.84 Stop pin, 8x7,1mm PA 1 10
13 30.1704.84 Trigger -RL26, PA black 1 10
14 30.0509.31 Parallel pin, 5x24,5 mm brass 1 10
15 16.3075.51 S/tapping screw, DIN7981 3,5x18 mm Sst. 7 10
16 30.1515.84 Safety latch, PA blue 1 10
17 30.0706.56 Tube, 1/8Bsp MM Sst. 1 10
18 30.1521.31 Coupl., 1/8F-3/8M Bsp c/sunk brass (3) 1 5
18 30.1517.31 Coupl., 1/8F Bsp-3/8F Npt brass (2) 1 10
19 30.0734.56 Tube, 1/8Bsp MM 97mm Sst. (4) 1 5
20 30.0727.31 Coupl., 1/8F Bsp-M20x1M brass (4) 1 10
21 30.0728.84 Bushing, 9x13x6 mm plast. black (4) 1 10
22 10.3109.93 O-ring, 2,4x8,3 mm Vi 70 (4) 1 10
23 10.4008.50 Back-up ring, 9x13,2x1,2 mm (4) 1 10
24 30.0729.31 Spacer ring, 9x19x3 mm brass (4) 1 10
25 30.1553.31 Pin -SW, M10x1,25 M brass (4) 1 5
26 30.0730.84 Bushing, 10x17x6 mm plast. black (4) 1 10
27 30.0733.31 Nipple, M20x1 F brass (4) 1 5
28 30.1554.31 Coupl., M10x1,25F-3/8F Bsp brass (4) 1 5
Kit P/N Description
K1 30.0725.24 Spares kit -RL26 weep, (1,1L)8x1pcs. 1
K2 30.1788.24 Spares kit -RL26 weep, (0,6L)8x1pcs. 1
(1) 30.1795.00 (2) 30.1790.50 (3) 30.1790.00 (4) 30.1792.00