ZH284KEZ
FLOW
SENSITIVE
FLOW
SENSITIVE
• Suitable for Industrial use
• Dual bypass port
• Extremely reliable
• Easy maintenance
GENERAL PUMP
A member of the Interpump Group
FEATURES
PARTS LIST
SPECIFICATIONS
Trapped Pressure Unloader Valve
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.
Ref 301085 Rev. B
02-22
Part Number
ZH284KEZ
Max Volume
10.5 GPM
Max Operating Pressure
4,060 PSI
Max Temperature
194° F
Port Sizes
Inlet:
(2) 3/8” NPT-F
Outlet:
3/8” NPT-F
Bypass:
3/8” NPT-F
Dimensions
7.24” x 3.31” x 2.05”
Weight
2.22 lbs
General Pump
is a member of
the Interpump Group
No.
Part No.
Description
Qty.
1
36359741 Housing
1
2*
90358500 O-ring, Ø 10.82 x 1.78
1
3*
36326566 Seat
1
4*
97483800 Ball, 13/32" (10.319 mm)
2
6*
90359100 O-ring, Ø 14 x 1.78
1
7*
36310451 Valve Guide
1
8*
90382300 O-ring, Ø 9.92 x 2.62
1
9
36359070 Outlet Nipple
1
10* 90359300 O-ring, Ø 15.6 x 1.78
1
11
36359573 Piston Rod
1
12* 90006300 Anti-Extrusion Ring, D.8 - DF. 1.2
1
13
36326466 Piston Guide
1
14* 90507000 Anti-Extrusion Ring, Ø 11.6 x 16 x 1.5/2
1
15* 90382500 O-ring, Ø 10.78 x 2.62
1
16* 90357600 O-ring, Ø 6.75 x 1.78
1
17
36335770 Spacer
1
18
36335670 Piston Rod Bushing
1
19* 90503600 Anti-Extrusion Ring, Ø 8 x 12.4 x 2.5/3
1
20* 90381800 O-ring, Ø 7.59 x 2.62
1
21* 90359500 O-ring, Ø17.17 x 1.78
1
22
97665800 Plug, Ø 3 x 12
1
23
36358970 Nut, M08 x 4.5
2
24
36352670 Pressure Register
1
25
36352700 Spring Holder Ring
1
26 872011054 Nut, M8
1
27
36326051 Knob
1
28
36329751 Yoke
1
29
98209430 Plug, 3/8" NPT x 12.7
1
32* 94750700 Spring, Ø 21 x 53
1
33
94735500 Spring, Ø 8.5 x 12
1
35
36359470 Inlet Plug
1
*
K421
Repair Kit
No.
Torque Specs
9
13.49 ft. lbs / 60 Nm
18
11.24 fl. lbs / 50 Nm
29
9 ft. lbs./ 40 Nm
35
6.74 ft. lbs. / 30 Nm
