Pressure reducing valve PA-R・PA-OR

Model	PA-R RA-OR PA-RH PA-ORH
Fluid	Water Oil Others (Non corrosive fluid)
Temperature	5℃ – 80℃ (Option:150℃)
Pressure	Primary : 0.1-1MPa/ 1-2MPa(H)
Size	3/4″ – 6″
Viscosity	700cSt or less
Body	FC20, SCPH
Manufacturer	TAISEI KOGYO CO., LTD.
Origin	Japan

Valve Specification

Connection		Primary pressure	Pressure Control Range	CV Value	Weight kg
Size	Type	Primary pressure	Pressure Control Range	CV Value	Weight kg
3/4	JIS10K/ JIS20K(H)	0.1-1MPa/ 1-2MPa(H)	1) above0.05 – 0.25MPa or less 2) above0.25 – 0.45MPa or less 3) above0.45 – 0.7 MPa or less 4) above0.7 – 1.6MPa or less (H)	2
1				3
1 1/4				6
1 1/2				8
2				15
2 1/2	JIS10K/ JIS20K(H)	0.1-1MPa/ 1-2MPa(H)	1) above0.05 – 0.2MPa or less 2) above0.2 – 0.5MPa or less 3) above0.5 – 0.7MPa or less 4) above 0.7 – 1.6MPa or less (H)	23
3				30
4				40
5				50
6				60

Model No	Type	Pressure Control Range
PA-R	Internal detection	above0.05 – 0.7 MPa or less
PA-OR	External detection	above0.05 – 0.7 MPa or less
PA-RH	Internal detection	above0.7 – 1.6 MPa or less
PA-ORH	External detection	above0.7 – 1.6 MPa or less

Other Specifications・Options

Min pressure defference	0.05MPa (the secondary pressure is 70% or less of the primary pressure)
Allowable leak rate	Less than (valve size / 25 * 200) cc/min
Max pressure reduction ratio	10:1
Range ability	20:1
Body	FC20 (PA-R,PA-OR) / SCPH (PA-RH,PAORH)

What is a Pressure reducing valve

・The pressure reducing valve is a valve that works to reduce high pressure fluid to an optimal pressure.
・In other words, the throttling effect when the high pressure fluid passes through the valve causes a pressure loss and reduces the pressure.
・The spring inside the valve creates a flow path area according to the differential pressure, making the flow constant.

About use of pressure reducing valve

・Pressure reducing valve is used when the supply pressure is too high for the purpose of use
・It is also used as a measure to reduce water hammer.

Precautions for pressure reducing valve

・Lubricating grease is used for the O-ring of the piston part. It can not be used in places that require no oil.
・The detection tube length for external detection (PA-OR PA-ORH) should be approximately 1 m. We also recommend using a speed controller or needle valve

Frequently Asked Questions

Can I buy your product from my country?: It’s possible for us to sell every area all over the world. If there is direct-shop or our agency directly in your area, we let you know it.
What can I select for payment options?: You can choose either T/T or L/C.T/T is an abbreviation of “Telegraphic Transfer”. Please send money to our bank account. L/C is an abbreviation of “Letter Of Credit”. It’s the means of settlement for trading that should be pledged as a collateral between our company and your bank as payment promise.
Can I buy the valves of other company by you?: You can buy Japanese valve product of other manufactures. You can buy the valves for example, Solenoid valves, Air-operated valves, Motorized valves, Electric flow control valves, Constant flow valves, Check valves, Manual valves, And other Japanese valves we can select. We can’t sell you some product that we don’t have the stock or that we can’t select the spec for special-spec product, please accept it beforehand. (If you may select the model number by your own and we do not have to decide or select it, we can sell you the product.) We can sell you any valve product of Japanese manufacture.

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What do you have shipping options?: Available for EMS and FedEX and other shipping companies with which we have been trading. Also available the options for airmail or surface mail depending on the quantity and weight of the package. If you want, you can choose delivery traders for shipping.
How long will it take for a shipping date?: If we have the stock, it will be delivered in 3 to 10 days by EMS. Order production will be delivered in 45 to 60 days depending on the quantity and weight of the products.

International Sales

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Keihin Co., Ltd.’s valve products (all products listed on the website or catalogue) can be purchased anywhere around the world from one pcs! (→Learn More)
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QUOTATION / ORDER

Pressure reducing valvePA-R・PA-OR series