RD-8 type
View favorites See the comparison
Since it is a direct acting type, stable control from small flow rate to large flow rate is possible, and it is used for decompression of various air lines and high pressure gas lines.
Since the valve body has a balanced structure, the change in the secondary pressure is insignificant with respect to the fluctuation in the primary pressure.

specification

Product code RD8-C □The symbol of the secondary adjustment pressure range is entered in □.
Nominal diameter 15-40 (1/2-1 1/2)
Applicable fluid Air / gas
Fluid temperature 5-80 ℃
Primary side applied pressure 3.0MPa or less
Secondary adjustment pressure range Nominal diameter 15 to 25: L: 0.2 to 0.3, M: 0.3 to 0.6, H: 0.6 to 0.9, S: 0.9 to 1.1, V: 1.1 to 1.4 MPa
Nominal diameter 32-40: L: 0.2-0.25, M: 0.25-0.65, H: 0.65-0.9, S: 0.9-1.1, V: 1.1-1.4MPa
Maximum decompression ratio 10:01
Minimum differential pressure before and after the valve 0.05MPa
Deadline boost Set pressure x 5% or less (minimum value 0.03MPa)
End connection JIS 16, 20, 30K RF flangeWe also manufacture JIS 10K FF / RF, JIS16, 20K FF, ASME / JPI class 150, and 300 flanges.
Material body SCPH
Material Valve body SUS
Material Valve seat SUS
Material disc PCTFE
Mounting posture Upright mounting on horizontal piping
  • We also manufacture high pressure gas certified products.

Download materials

Download materials

Common to all product symbols

RD-8 Catalog

RD-8 price list

RD-8 outline drawing

RD-8 Instruction Manual

RD8-C □

RD8-C reference diagram

Frequently Asked Questions and Explanations

Is there a leak in the steam pressure reducing valve?

The allowable leakage amount is stated in the specifications of each product.

Does the fluid flow without pressure adjustment?

It doesn't flow. It will flow normally only after adjusting the pressure.

How should I perform maintenance and inspection of the steam pressure reducing valve?

We perform regular maintenance once a year as a guide. Please refer to the instruction manual for details.

Inquiries about this product

Please use this form for product questions and technical inquiries.
If you would like to contact us by phone, please contact VENN's sales office.

We will strictly manage the personal information of our customers based on our "Personal Information Protection Management Regulations" and will not use it for anything other than responding to inquiries and consultations without the consent of the customer.
Please check our privacy policy.

Please cooperate with the questionnaire

We will use your opinions as a reference to make the website easier to understand and useful, so we ask for your cooperation.

Was this page helpful?

How easy was it to find the page you were looking for on this site?

How was the page easy to understand about this site?

Thank you for your cooperation

Added to Favorites View Favorites

close

Added to Download BOX Download BOX

close

Search tips

Products with different symbols depending on the product specifications are indicated by □.
When searching, please search by inputting up to the first character after the "-" (hyphen).

Notation on catalogs and websites

RD44N-F □

Contains characters that indicate pressure classification and options.

No hits in product search
RP7-FL
Hit in product search
RP7-FL
You can also search by product name or model.
product name
"Reducing valve", "solenoid valve", "safety valve", etc.
Model
"RP-6", "RD-31N", "SL-37", etc.