Spec Sheet

ManualsBrandsGeneral Pump ManualsPressure Washer Accessories1" NPT 2200 PSI 52 GPM Trapped Pressure Washer Pump Unloader Valve

YU5221

TRAPPED PRESSURE TRAPPED PRESSURE

• Sturdy steel and brass construction

• Hexagonal shaped check valve to avoid jamming

• Max pressure adjustment by screw and locknut

• Easy maintenance

GENERAL PUMP A member of the Interpump Group

FEATURES

PARTS LIST

SPECIFICATIONS

Trapped Pressure Unloader Valve

General Pump

is a member of

the Interpump Group

ITEM PART # DESCRIPTION QTY

1 Y60501431 Fitting, 1" NPT-F 1

2* Y10320601 O-ring, 2.62x28.25 2

3 Y60501351 Spring, 1.3x18x29, SS 1

4 Y60501251 Check Valve 1

5* Y10331400 O-ring, 5.33x12.06 1

6 Y60500135 Body, 1” NPT, Brass 1

7* Y10307201 O-ring, 1.78x20.35 1

8* Y60500251 Seat, 15.8x23x6, SST 1

9* Y60500351 Valve 1

10* Y10319501 O-ring, 2.62x20.29 1

11 Y60501031 Reduction Bushing, Brass 1

12* Y10408000 Back-up ring, 12x18x2.2 1

13* Y10323400 O-ring, 3.53x10.69 1

14 Y60500931 Piston Housing 1

15 Y60501161 Valve Regulating Screw 1

16 Y11462900 Hex Nut, M10 1

17 Y60500831 Upper Plug, M10, Brass 1

18 Y60500531 Spring Guide Spacer, Brass 1

19 Y60500661 Spring, 6x30x62 1

20 Y60500731 Spring Guide Spacer, Brass 1

21 Y14746100 Ball, 13/32”, SST 1

22* Y10408100 Back-up Ring, 15.8x22x2 1

23* Y10323700 O-ring, 3.53x15.47 1

24 Y60500451 Piston, M8, SST 1

* YKITU5221 Repair Kit 1

General Pump

ecommends using a

afety relief device in

conjunction with

his unloader valve

hen installed on a

positive displacement

pump. General Pump is

not liable and assumes

o responsibility when

used in a customer’s

high pressure system.

Ref 300469 Rev. F

10-16

PART NUMBER YU5221

Maximum Volume 53.0 GPM

Rated Pressure 2,200 PSI

Maximum Pressure 2,450 PSI

Maximum Temperature 200

Port Sizes Inlet 1" NPT-F

Outlet 1" NPT-F

Bypass 1" NPT-F

Overall Dimensions 8.5" x 5.0" x 1.75"

Weight 4.5 Lbs.

Materials

Brass, Stainless Steel,

Buna-N

Summary of content (3 pages)

PAGE 1
YU5221 A member of the Interpump Group Trapped Pressure Unloader Valve FEATURES • Sturdy steel and brass construction • Hexagonal shaped check valve to avoid jamming • Max pressure adjustment by screw and locknut • Easy maintenance SPECIFICATIONS PART NUMBER Maximum Volume Rated Pressure Maximum Pressure Maximum Temperature Port Sizes Overall Dimensions Weight Inlet Outlet Bypass Materials PARTS LIST YU5221 53.0 GPM 2,200 PSI 2,450 PSI 200o 1" NPT-F 1" NPT-F 1" NPT-F 8.5" x 5.0" x 1.75" 4.5 Lbs.
PAGE 2
GENERAL PUMP A member of the Interpump Group DIMENSIONS YU5221 Trapped Pressure Unloader Valve SELECTION AND OPERATION SELECTION This product is intended to be incorporated on a finished machine. This product is to be used with clean fresh water, for use involving different or corrosive liquids, contact the GP Customer Service Department. Appropriate filtration should be installed when using impure liquids.
PAGE 3
GENERAL PUMP A member of the Interpump Group YU5221 Trapped Pressure Unloader Valve MAINTENANCE STANDARD: every 400 working hours, check and lubricate the seals with water resistant grease. SPECIAL: every 800 working hours, check the wear of the seals and internal parts and, if necessary, replace with original GP parts taking care, during installation, to lubricate with water resistant grease.