Normally open, balanced poppet, logic element - vent-to-close
Capacity:
60 gpm (240 L/min.)
Functional Group:
Products : Cartridges : Logic Element : Balanced Poppet : Normally Open, Vent to Operate
Model:
DOHR
Product Description
This is a normally open, balanced poppet, switching element. When the vent port (port 4) is blocked, the
poppet remains in the open position. Venting port 4 shifts it to the closed position, provided
there is sufficient
pressure at port 3.
Technical Features
Unique balanced construction provides predictable switching with 5000
psi (350 bar) at both ports 1 and 2, with the vent (port 4) open and a
minimum pilot pressure of 400 psi (30 bar) at port 3.
Leakage rate between port 1 and port 2 is very low, typically less than
10 drops/min. at 5000 psi (0,7 cc/min at 350 bar).
Valve will open when the pilot pressure falls below 145 psi (10 bar).
Port 4 may be externally connected to a pilot switching
valve. The pilot
valve should have a leakage rate of less than 10 drops/min. and be
able to satisfy the pilot flow requirements. Sun model DAA*-***
solenoid pilot valve is ideal for this application.
These valves are hydraulically balanced between port 1 and port 2.
All ports will accept 5000 psi (350 bar).
Port 1 and port 2 are fully sealed from port 3 and port 4. Ports 3 and 4
are positively sealed.
Incorporates the Sun floating style construction to minimize the
possibility of internal parts binding due to excessive installation torque
and/or cavity/cartridge machining variations.
Technical Data
U.S. Units Metric Units
Cavity T-23A
Capacity 60 gpm 240 L/min.
Control Pilot Flow 15 - 30 in³/min. 0,25 - 0,50 L/min.
Maximum Operating Pressure 5000 psi 350 bar
Maximum Valve Leakage at 110 SUS (24 cSt) 10 drops/min.@5000 psi 0,7 cc/min.@350 bar
Minimum Pilot Pressure Required to Shift Valve 300 psi 20 bar
Series (from Cavity) Series 3
Valve Hex Size 1 1/4 in. 31,8 mm
Valve Installation Torque 150 - 160 lbf ft 200 - 215 Nm
Seal Kits - Cartridge Buna: 990-023-007
Seal Kits - Cartridge Viton: 990-023-006
Model Weight 1.47 lb. 0.67 kg.
Download
DOHR-XHN
$173.90
Recommended List Price
Control
Minimum Pilot Pressure
External Material/Seal Material
Standard Options
X Vent to Operate +0.00
Standard Options
H 200 psi (14 bar) +0.00
Standard Options
N Buna-N +0.00
V Viton +6.00
Preferred
Options
Related Models
DOHR8
Special Notes
No Special Notes Available for selected model.
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