CAT. No. KS - 131E

PRECISION VACUUM REGULATORSSERIES▲rVAir Regulators that attain High Accuracy inVacuum Pressure Regulation.

RV

PRECISION VACUUM REGULATORS■ Features●Accurate Vacuum Control
Sensitivity : 1 Torr (0.13kPa )Repeatability : Within ± 2.2 Torr (± 0.3kPa )●Superior Source Vacuum Sensitivity
Set vacuum pressure variation to changes in source
vacuum pressure : Within 10 Torr (1.3kPa )●■ JIS symbol

Large Flow Capacity
Flow capacity up to 270 NL / min allows wide uses inhigh flow applications.

●Good Responsibility
Quickly responsive to minute changes in output vacuum
pressure.

■ Explanatory construction andPrinciple of operation■ Specifications
ModelItem
Working FluidkPa(mmHg)
Vacuum Range SettingkPa(mmHg)
Output SensitivitykPa(mmHg)
Repeatability
Operating Temperature℃
NL /min(normal)
Flow Rate
Port Size
Accessory Parts
Bracket (Standard)kg
WeightRV・S - 1 - 2

RV - 1 - 2

RV - 1 - 3

Air (Vacuum)--1.3 〜 --100（--10 〜 --750）
0.13（ 1 ）Within ± 0.3（± 2.2）
5 〜 60200270R c 1/4

R c 3/80.50.65〈 MODEL DESIGNATION 〉

RV1TypePort Size

RV・S2

Rc 1/4

RV

3

Rc 3/8（※）（※）only RV

Main and Exhaust valve device of balance
type keeps secondary sensitivity very low
to changes in source vacuum pressure.
Clockwise turning of Control knob opens
Main valve, causing rise in secondary
vacuum pressure, and vice versa.
Secondary vacuum pressure acts on
Diaphragm to exert upward force andbalances downward force of Range spring,creating an output set vacuum pressure.
Slight rise / fall in output vacuum level
above/ under the set point will move
Diaphragm upward / downward, causing
Exhaust / Main valve to open until the set
point is again reached.

■ Characteristic

PRECISION AIR REGULATOR

RV- S■ Pressure Characteristic■ Flow Characteristic■ Pressure Characteristic■ Flow Characteristic

RVCAUTION Flush out all air lines throughly to remove dirt and scale before installation is made.
 When plumbing connections,apply seal tape onto male threads starting with 3rd thread back away fromend to avoid possibilities of getting the tape into Regulator and air line.
 Before a vacuum pressure is applied to Vacuum Regulator, turn Control knob full counterclockwise toloosen. After that, apply vacuum pressure to the system and turn knob clockwise as required to set
necessary vacuum pressure.

WARNING Do not torque excessively Tightening screws when attaching Mounting bracket to Body.
 Additional 2 ports of Rc ( PT ) 1/4 other than plumbing ports are provided for vacuum pressure source(vacuum pump side), but not for pressure gauge.
☆ If you have any questions, Fujikura are ready to assist you. Please consult us at the address printed below (Control Equipment Division, Fujikura Rubber Ltd.).

◎ OUT LINE DIMENSIONS （unit : mm）

RVSERIES

PRECISION AIR REGULATOR

RV- S

RV

Note:Specifications subject to change without notice for improvements and modifications.
Printed in Japan

Notice: Specification changes of Accessory(Bracket for regulator “RV-S series” )We hereby give official notification that the specifications of the bracket for air regulator “RP series”
and “RP series” you have purchased from us are changing from the first lot of production in April 2023.
There will be no change in product model number due to this change.
【Details of change】
The shape will be changed in accordance with the shared use with other regulator series. Due to thechange in shape, the mounting position will also change. There are no changes to the products
themselves, so there are no effects on the characteristics.

BracketPrevious model

BracketNew model【RV-S series】

Tighten with
The body fastening screws

Assembly Drawing
Previous model

Tighten withthe panel mounting nut

Assembly Drawing
New model
管理番号：CES20-22-008E