Model code：
(1) Product code: DIF straight one-way valve
(2) Connection method: L-threaded connection
(3) Nominal diameter: 10, 20, 32mm
(4) Nominal pressure: H-31.5MPa
(5) Positive opening pressure: 1-0.04MPa
2-0.4MPa
New joint type
(1) Product code: A-through one-way valve
(2) Connection method: L-threaded connection
(3) Nominal diameter: 10, 20, 32mm
(4) Nominal pressure: H-31.5MPa
(5) Positive opening pressure: 1-0.04MPa
Product Introduction：
A one-way valve is a valve that only allows oil to flow in one direction and does not allow reverse flow. The inlet and outlet of the one-way valve are on the same axis and can be connected to the system pipeline
using threaded pipe joints. The opening pressure of a one-way valve is 0.04 MPa and 0.4 MPa, the former is generally used to prevent reverse oil flow, and the latter is generally used as a backpressure valve.
There are two series of domestically produced straight through one-way valves. One is the old combined type developed in the mid-1960s with the code name DIF, and the other is the new combined type
developed in the mid-1970s with the code name A. The biggest difference between the two is the different connecting threads.
Our factory has recently developed a new series of straight through one-way valves with one end threaded internally and one end threaded externally, codenamed D.
Graphic symbol：
Dimension：
Precautions for use and ordering
(1) For one-way valves with an opening pressure of 0.04Mpa, it is advisable to avoid installing the valve core cone face vertically upwards.
(2) The arrow on the valve body indicates the direction in which the oil can flow freely, be careful not to connect it in the opposite direction.
(3) When placing an order and writing the model number, the opening pressure code must not be omitted. If the opening pressure code is not specified, it will be shipped at 0.04Mpa.
