Primary pressure regulating valve PA-P PA-O

Model	PA-P RA-O PA-H PA-OH
Fluid	Water Oil Others (Non corrosive fluid)
Temperature	5℃ – 80℃ (Option:150℃)
Pressure	0.05-1.6MPa
Size	3/4″ – 6″
Viscosity	700cSt or less
Body	FC200, SCPH
Manufacturer	TAISEI KOGYO CO., LTD.
Origin	Japan

Valve Specification

Size	Connection	Primary Pressure	Pressure Control Range	CV Value	Weight kg
20A(3/4″)	Connection JIS10K/20K(H)	Primary Pressure JIS10K/ JIS20K(H)	Pressure Control Range 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)	CV Value 2	Weightkg –
25A(1″)	Connection JIS10K/20K(H)			Primary Pressure JIS10K/JIS20K(H)	Pressure Control Range 1) above0.05 – 0.25MPa or less2) above0.25 – 0.45MPa or less3) above0.45 – 0.7 MPa or less4) above0.7 – 1.6MPa or less (H)	CV Value 3	Weightkg –
32A(1-1/4″)	Connection JIS10K/20K(H)			Primary Pressure JIS10K/JIS20K(H)	Pressure Control Range 1) above0.05 – 0.25MPa or less2) above0.25 – 0.45MPa or less3) above0.45 – 0.7 MPa or less4) above0.7 – 1.6MPa or less (H)	CV Value 6	Weightkg –
40A(1-1/2″)	Connection JIS10K/20K(H)			Primary Pressure JIS10K/JIS20K(H)	Pressure Control Range 1) above0.05 – 0.25MPa or less2) above0.25 – 0.45MPa or less3) above0.45 – 0.7 MPa or less4) above0.7 – 1.6MPa or less (H)	CV Value 8	Weightkg –
50A(2″)	Connection JIS10K/20K(H)			Primary Pressure JIS10K/JIS20K(H)	Pressure Control Range 1) above0.05 – 0.25MPa or less2) above0.25 – 0.45MPa or less3) above0.45 – 0.7 MPa or less4) above0.7 – 1.6MPa or less (H)	CV Value 15	Weightkg –
65A(2-1/2″)	Connection JIS10K/20K(H)			Primary Pressure JIS10K/JIS20K(H)	Pressure Control Range 1) above0.05 – 0.25MPa or less2) above0.25 – 0.45MPa or less3) above0.45 – 0.7 MPa or less4) above0.7 – 1.6MPa or less (H)	CV Value 23	Weightkg –
80A(3″)	Connection JIS10K/20K(H)			Primary Pressure JIS10K/JIS20K(H)	Pressure Control Range 1) above0.05 – 0.25MPa or less2) above0.25 – 0.45MPa or less3) above0.45 – 0.7 MPa or less4) above0.7 – 1.6MPa or less (H)	CV Value 30	Weightkg –
100A(4″)	Connection JIS10K/20K(H)			Primary Pressure JIS10K/JIS20K(H)	Pressure Control Range 1) above0.05 – 0.25MPa or less2) above0.25 – 0.45MPa or less3) above0.45 – 0.7 MPa or less4) above0.7 – 1.6MPa or less (H)	CV Value 40	Weightkg –
125A(5″)	Connection JIS10K/20K(H)			Primary Pressure JIS10K/JIS20K(H)	Pressure Control Range 1) above0.05 – 0.25MPa or less2) above0.25 – 0.45MPa or less3) above0.45 – 0.7 MPa or less4) above0.7 – 1.6MPa or less (H)	CV Value 50	Weightkg –
150A(6″)	Connection JIS10K/20K(H)			Primary Pressure JIS10K/JIS20K(H)	Pressure Control Range 1) above0.05 – 0.25MPa or less2) above0.25 – 0.45MPa or less3) above0.45 – 0.7 MPa or less4) above0.7 – 1.6MPa or less (H)	CV Value 60	Weightkg –

Model No	Type	Pressure Control Range
PA-P	Internal detection	above0.05 – 0.7 MPa or less
PA-O	External detection	above0.05 – 0.7 MPa or less
PA-H	Internal detection	above0.7 – 1.6 MPa or less
PA-OH	External detection	above0.7 – 1.6 MPa or less

Other Specifications・Options

Allowable leak rate	Less than 0.5% of CV value
Range ability	20:1
Body	FC200/ SCPH

What is a Primary pressure reducing valve

・Release the excessive pressure in the piping and keep the pressure on the primary side of the valve constant.

・It is used for the purpose of pressure control of drain recovery piping, flow adjustment of pump, and pressure release of pump.

Precautions for primary pressure reducing valve

・Avoid piping in places with a lot of pulsations. There is a dedicated model for pulsations if it is absolutely necessary to install. Please contact us for details.
・The length of the external detection pipe of the primary pressure regulator should be 1 m.
・Use a speed controller or needle valve in the middle of the external detection tube.

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.
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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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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.

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Primary pressure regulating valvePA-P・PA-O series