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LUBE DEVICES : PRODUCTS : VENTS, BREATHERS, FILTERS :
RELIEF VENTS / SAMPLING VALVES 		BULLETIN F1297-4  
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RELIEF VENTS / SAMPLING VALVES

Dual purpose relief or filler vent plugs can be used for gear box housings and bearings where excessive pressures are not desirable. Unit will reseat itself for continuous duty.
    STANDARD MATERIALS:
  • Brass construction and plated steel
    OPERATING CONDITIONS:
  • 1 to 80 PSI (6.9 to 551.6 kPa)

When ordering, select catalog number followed by suffix number for relief pressure - (x):

EXAMPLE: PRV104-4
Where: Means:
PRV104 1/2-14 PTF.
-4 15 to 25 PSI (103.4 to 172.4 kPa) relief pressure.

SUFFIX -1 PSI
(kPa)		 -2 PSI
(kPa)		 -3 PSI
(kPa)		 -4 PSI
(kPa)		 -5 PSI
(kPa)
MIN. .25 (1.7) 1 (6.9) 7.50 (51.7) 15 (103.4) 45 (310.3)
MAX. 1 (6.9) 5 (34.5) 15 (103.4) 25 (172.4) 80 (551.6)

CATALOG NUMBER A B - INCHES
(mm)		 C - INCHES
(mm)		 D - INCHES
(mm)
PRV101-(x) 1/8-27 .31 (7.87) .44 (11.18) .59 (14.99)
PRV102-(x) 1/4-18 .50 (12.70) .62 (15.75) 1.12 (28.45)
PRV103-(x) 3/8-18 .50 (12.70) .75 (19.05) 1.19 (30.23)
PRV104-(x) 1/2-14 .62 (15.75) .88 (22.35) 1.38 (35.05)

CAD Drawing


PRESSURE / VACUUM BREATHERS
Allow sealed pressure systems to vent off excess pressure as heat builds up. As the system cools, outside air pressure is also allowed back in. Filter keeps dirt from entering into system.
    STANDARD MATERIALS:
  • 20 micron bronze filter.
  • Steel body.
  • Aluminum cap.
  • Buna N seals.
CATALOG NUMBER PSI (kPa) VACUUM INCHES Hg
(mm Hg)
PRV201-03 3.0 (20.7)/ 6.0 (41.4) 2.0 (50.8)/ 3.0 (76.2)
PRV201-13 6 (41.4)/ 12 (82.7) 28 (711)/ 30 (762)
PRV201-30 0.4 (2.8)/ 0.9 (6.2) 20 (508)/ 25 (635)
CAD Drawing

SAMPLING VALVE
Used to bleed excessive air pressure out of system or to sample liquid in system to view condition and clarity. Locknut prevents screw from backing out of base in high vibration situations.
    STANDARD MATERIALS:
  • Brass construction.
  • Stainless steel ball seated in brass.
    OPERATING CONDITIONS:
  • For pressures up to 6000 PSI (41370 kPa)
CAD Drawing
CATALOG NUMBER A B - INCHES
(mm)		 C - INCHES
(mm)		 D - INCHES
(mm)		 E - INCHES
(mm)		 F - INCHES
(mm)		 G - INCHES
(mm)		 FEATURES
V101 1/8 .076 (1.93) .56 (14.22) .38 (9.65) 1.19 (30.23) .38 (9.65) .69 (17.53) WITH LOCKNUT


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