ZDBVP
DESCRIPTION OF FUNCTION, SECTION
20
They comprise a
• housing (6)
• adjustment spring (4)
• adjustment mechanism (3)
• main poppet (1) and a
• pilot poppet (5).
Pressure relief valves are normally closed. Pressure
(shown in cross-section on port 8) acts upon both sides
of main poppet (1), via orifice (2), and also upon pilot
poppet (5).
As the pressure on the exposed surface area of pilot
poppet (5) exceeds spring force (4), it opens allowing
pilot flow via orifice (2) and drain (7). This pressure drop
across main poppet (1), allows the main flow into tank.
Pressure relief valves type ZDBVP06 are pilot operated
poppet type valves in sandwich plate design. They limit
maximum pressure in a hydraulic system.
MODULAR VALVES
PRESSURE RELIEF VALVES
PILOT OPERATED
21
ZDBVP
MODULAR VALVES
PRESSURE RELIEF VALVES
PILOT OPERATED
ORDERING INFORMATION
SYMBOLS AND PART NUMBERS
NG Q
max.
[l/min] DESIGNATION PART NUMBER
ZDBVP06A4PT2BS XZB10048-000-01
6 60 ZDBVP06A4PT2GS
XZB10050-000-01
ZDBVP06A4PT2KS XZB10051-000-01
ZDBVP06A4AT2BS XZB10088-000-01
6 60 ZDBVP06A4AT2GS XZB10090-000-01
ZDBVP06A4AT2KS XZB10091-000-01
ZDBVP06A4BT2BS XZB10052-000-01
6 60 ZDBVP06A4BT2GS XZB10054-000-01
ZDBVP06A4BT2KS XZB10055-000-01
ZDBVP06A4CT2BS XZB10096-000-01
6 60 ZDBVP06A4CT2GS XZB10098-000-01
ZDBVP06A4CT2KS XZB10099-000-01
ZDBVP06A4AB2BS XZB10092-000-01
6 60 ZDBVP06A4AB2GS XZB10094-000-01
ZDBVP06A4AB2KS XZB10095-000-01
Subject to technical changes
ZDBVP
TECHNICAL DATA
PERFORMANCE CURVES
22
General Data Value Unit Specifications
Designation - - Pressure relief valve pilot operated
Type designation - - see Ordering Information
Mode of construction - - Modular valve
Mounting pattern - - Size 03 (NG06) as per ISO 4401
Mounting dimensions - mm see Unit dimensions
Mounting position - - any
Flow max. Q
max.
l/min 60 (see performance limits)
Ambient temperature range
min. °C -25
max. °C +60
Working pressure
Inlet
min. bar 0
max. bar 350
Outlet
min. bar 0
max. bar 350
Fluid temperature range
min. °C -25
max. °C +80
Viscositiy range
min. mm
2
• s
-1
[cSt] 2,8
max. mm
2
• s
-1
[cSt] 380
Operational viscositiy ν mm
2
• s
-1
[cSt] 35
Weight m kg 1,5 => Version PT, AT, BT /
2,5 => Version CT
, AB
Δp-Q-Diagram
Δp [bar]
Pressure difference
p
E
-Q-Diagram
p
E
[bar]
Pressure setting
MODULAR VALVES
PRESSURE RELIEF VALVES
PILOT OPERATED
Flow Q [l/min| Flow Q [l/min|
INSTALLATION DRAWING ZDBVP06A4PT(AT,BT)_S/MA(MB)
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ZDBVP
MODULAR VALVES
PRESSURE RELIEF VALVES
PILOT OPERATED
INSTALLATION DRAWING ZDBVP06A4CT(AB)_S
Adjustment 2
Adjustment 8
Adjustment 2
Adjustment 8
4 x O-Ring Viton 9,25x1,78 (Part number: X980-02012) Seal kit, complete: XEB17626-000-00
M-Version: 4 x Axial seal ring 8,5x12,5x1,5 (Part number: XE15498) Seal kit, complete: XEB17626-000M00
4 x O-Ring Viton 9,25x1,78 (Part number: X980-02012)
Seal kit, complete: XEB17628-000-00 (CT), XEB17630-000-00 (AB)
M-Version: 4 x Axial seal ring 8,5x12,5x1,5 (Part number: XE15498)
Seal kit, complete: XEB17628-000M00 (CT), XEB17630-000M00 (AB)
Int. hex socket SW 6
Int. hex socket SW 6
