Spec Sheet
YVB4021HT
TRAPPED PRESSURE TRAPPED PRESSURE
GENERAL PUMP A member of the Interpump Group
SPECIFICATIONS
Pressure Trapping Unloader
Part Number ................................ YVB4021HT
Maximum Temperature .......................................................195
o
F
1
Max. Volume ...................................................................... 21 GPM
Rated Pressure ............................................................... 4,050 PSI
Minimum Adjustable Pressure............................................ 400 PSI
Maximum Discharge Pressure ........................................ 4,500 PSI
Pressure Drop to Reset Bypass ..............................................32%
2
Port Sizes: Inlet .......................................................... 1/2” NPT-F
Outlet ....................................................... 1/2” NPT-F
Bypass ..................................................... 1/2” NPT-F
Overall Dimensions ............................................ 6.5” x 4.0” x 1.77”
Weight ..... ........................................................................2.5 lbs.
Materials......... ............................Brass Body, Stainless Steel
1 This unloader has been designed to operate at a continuous water temperature of
185
0
F. It can be operated for short periods at a maximum temperature of 195
0
F.
2 This is the pressure reduction necessary in comparison to the set up, in order that
the valve brings back pressure in the circuit (% figures of the pressure set up).
General Pump
is a member of
the Interpump Group
FEATURES
• Suitable for use with multiple guns at the same time
• Designed fot use up to 185º F
• Optimized internal passages that guarantee reduced pressure
loss
• No risk of fitting enjected in case of overpressure because
o-rings are positioned upstream to the threads
• 1/4” NPT fitting for pressure gauge
General Pump recommends using a safety relief device in
conjunction with this unloader valve when installed on a positive
displacement pump. General Pump is not liable and assumes no
responsibility when used in a customer’s high pressure system.
DIMENSIONS
Ref 300981 Rev. B
10-18