Primary pressure control valve Yoshitake GD-47R

Primary pressure control valve Yoshitake GD47R
in stock
Price: specify




  • Manufacturer: Yoshitake (Japan)
  • Material: ductile iron, stainless steel
  • Action type: direct action
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  • Specifications
  • Description
  • Dimensions and weight
  • Chart
  • Delivery and payment
Application Steam
Nom. the size 50A
Pressure regulation range 0.2-0.9 MPa
Min. differential pressure 0.05 MPa
Operating temperature No more than 220 ° C
Leaking valve seat 0.5% of nominal flow
The method of perception is primary. pressure External impulse tube
Cv value 36
Material Frame Ductile Iron (FCD450)
Valve Stainless steel
Valve seat Stainless steel
Bellows Stainless steel
Compound Flange connection JIS 10K FF

An external impulse pipe (Ø8-2 m) and an external connection (Ø8-R 1/4) are supplied with the product.

Example of a piping diagram

Пример схемы трубопроводов GD-47R

Impulse tube connection method
Connect the impulse pipe (Ø8-2 m) and connection (Ø8-R 1/4) supplied as shown in the picture above.
1. Wind sealing tape over the joint and insert it into the pressure tapping point.
2. Fully insert the impulse tubing into the valve and into the established connection.
Tighten the retaining nut by hand until it stops, and then another one and a quarter turn with the wrench.
3. The impulse line should be as straight as possible, in case of excess length it is necessary to
trim it.

  1. Suitable for heavy duty applications over a wide flow range.
  2. The scope of this model is huge: waste heat boilers, air conditioning units and other production facilities.

схема Yoshitake GD-47R

Flow characteristics graph

График характеристик расхода GD-47R


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Primary pressure control valve Yoshitake GD47R

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