RP

PR ECISION AIR REGULATORFEATURES
Accurate Pressure Regulation
Repeatability : within ± 0.5 % F.S.
● Superior Supply Pressure Characteristics
output pressure variation to changes in supply pressure :within 0.5kPa● Excellent Non-Bleed Pressure Regulation
Generates a Zero-based precision output pressure
unmatched by any other direct acting type of regulators.
● Free from Dust Trouble
Incorporated Screen Filter assures long trouble-freeoperation.
●Explanatory
EXPLANATORY Construction
CONSTRUCTIONandof Operation
AND Principle
PRINCIPLE OFOPERATIONSPECIFICATIONS
TYPE

RP - 0.5 - 2 RP - 2 - 2Relieving

Non-Relieving RP・NR - 0.5 - 2 RP・NR - 2 - 2TERM

Working Fluid

RP - 4 - 20.05

RP・NR - 4 - 2 RP・NR - 7 - 2

Supply Pressure Range MPa

0.5 max.

Repeatability% F.S.

Sensitivity% F.S.

0.2

0.4

RELIEF VALVE 햴CONTROL
DIAPHRAGM 햲

Within ± 0.5
Within 1

Within 0.5

Operating Temperature℃

5 〜 60Pipe PortRc

1／4

Gauge PortRc

1 ／ 4（2 Ports）

Within 0.3

SCREEN FILTER 햹kg0.41

Range spring 햵, which has been compressed byAdjusting knob 햶, causes Pintle 햷 to move
downward,opening Supply valve 햳 and allowing
air flow to the downstream.The pressure builds
up against Control diaphragm 햲 until Supplyvalve 햳 closes.
This is the equilibrium or set pressure, which is
closely maintained under changes in operating
conditions in the following manner.

PRESSURE GAUGE（OPTION）
Opt. No.

G025

Unit

G060

G100

1. Downstream Pressure Drop
A drop in downstream pressure reduces thediaphragm pressure force, upsetting the equilibrium
condition.
This unbalance causes Supply valve 햳 to open untilthe pressure builds up once more to the set value.

MPa

Pressure Range

0 〜 0.25

0 〜 0.60〜1

Min. Graduation

0.005

0.01

0.02

2. Downstream Pressure Increase
An increase in downstream pressure acts on Controldiaphragm 햲,causing the relief seat to lift and Relief
valve 햴 to open.
The excess pressure drops quickly to the set value.

MODEL DESIGNATION

RP

2Relieving

NR

Non-Relieving

SUPPLY VALVE 햳

Standard Equipment

Accuracy ± 1.6 % F.S.

None

ASPIRATOR 햸PINTLE 햷*0.02MPa and 0.03MPa models available.

ReliefRANGE SPRING 햵

0.71 max.

Bracket●ADJUSTING KNOB 햶

Clean Compressed Air

Set Pressure Range MPa

WeightRP - 7 - 2

Set Pressure Range

Port Size

0.524720〜 0.05MPa
0〜 0.2MPa0〜 0.4MPa
0〜 0.7MPa

Rc 1/4*0.02MPa and 0.03MPa models available.

OptionNone
NoneG025 Pressure Gauge G025
G060 Pressure Gauge G060
G100 Pressure Gauge G100

3. Changes in Forward Flow
Under stable forward flow condition,the range springforce is balanced by the diaphragm pressure force,with Supply valve 햳 open just enough to maintainthe required equilibrium pressure.
When high flow occurs, Aspirator 햸 helps maintaindownstream pressure and compensates for droop.

฀
PRECISION AIR REGULATOR■ Flow Characteristic■ Pressure Characteristic

REGULATED PRESSURE MPa

REGULATED PRESSURE MPa

SUPPLY PRESSURE 0.7 MPa

SUPPLY PRESSURE MPa

FLOW RATE/min（normal）

REGULATED PRESSURE MPa

REGULATED PRESSURE MPa

SUPPLY PRESSURE 0.7 MPa

FLOW RATE/min（normal）

SUPPLY PRESSURE MPa

REGULATED PRESSURE MPa

REGULATED PRESSURE MPa

SUPPLY PRESSURE 0.5 MPa/min（normal）

SUPPLY PRESSURE MPa
MPa

SUPPLY PRESSURE 0.5 MPa

FLOW RATE/min（normal）

REGULATED PRESSURE MPa

REGULATED PRESSURE MPa

FLOW RATESUPPLY PRESSURE MPa

CAUTION

1 Flush out all air lines thoroughly to remove dirt and scale before installation is made.

2 Do not apply shock load on the top of fully tightened Adjusting knob to avoid possible damage of inner parts.

3 When attaching Mounting bracket to the body with two pan head screws which serve also fur tightening Bonnet,make surethe screws are not tightened too hard.

☆ If you have any question, FUJIKURA are ready to assist you. Please consult us at the address printed on the back cover.

Notice: Specification changes of Accessory(Bracket for regulator “RP series”, )Dear Valued Customer,
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.
【RP 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

NEW Model Available