In industrial piping systems, water treatment systems, and processes requiring automation, manually operating flow-control valves can be limiting when the system requires remote operation or integration with a control cabinet. The RMIPLAST PV123 electric butterfly valve is designed to meet this requirement by combining a plastic butterfly valve with the RMIPLAST EA23 Series electric actuator.

According to the product technical information, the PV123 features a wafer-type design, with a PP body and disc, FPM seat, and steel stem. The valve can be equipped with an electric actuator supporting ON/OFF control or 4–20 mA signal control, making it suitable for systems requiring automatic flow control.

1. Introduction to the RMIPLAST PV123 Electric Butterfly Valve

The RMIPLAST PV123 is an electric butterfly valve that uses an electric actuator to perform valve opening and closing operations. The product is presented with a size range from DN25 to DN1000 (1″–40″), covering various piping configurations.

The valve features a Wafer JIS 10K connection, allowing installation between pipe flanges. According to the material table, the valve body is made of PP (Polypropylene), while the seat is made of FPM and the stem is made of steel.

One notable feature of the PV123 is its compatibility with the RMIPLAST EA23 Series electric actuator. Instead of requiring direct manual operation, the actuator converts electrical energy into rotary motion to operate the valve disc.

As a result, the PV123 can be used in systems where valve operation needs to be automated or controlled from a centralized location.

2. Construction of the RMIPLAST PV123 Electric Butterfly Valve

The PV123 electric butterfly valve consists of two main sections: the butterfly valve body and the electric actuator.

2.1. Valve Body

The valve body features a wafer-type design for installation between two pipe flanges. According to the construction drawing, the main components include:

• Body: PP
• Seat: FPM
• Disc: PP
• Stem: Steel
• O-ring: FPM
• Bolt & Nut: SS304
• Wire Connector: PP
• Actuator: Plastic Alloy

The PP body and disc maintain the plastic construction of the valve, while the FPM seat provides the sealing surface between the disc and valve body.

2.2. Valve Disc

The valve disc is the component that rotates directly within the flow path to open or close the pipeline. When the actuator rotates the valve stem, the disc changes its position according to the operating angle.

According to the product information, the actuator has a 0–90° running angle, corresponding to the operating mechanism of a butterfly valve.

2.3. Valve Stem and Sealing Components

The valve stem is specified as Steel, connecting the disc to the actuator. The sealing positions use FPM, including the seat and O-ring according to the material table.

The use of FPM for sealing components allows the PV123 configuration to be considered for systems requiring sealing materials suitable for specific operating environments. However, actual valve selection should be verified for compatibility with the fluid type, concentration, and operating temperature before use.

3. Operating Principle of the Electric Butterfly Valve

The RMIPLAST PV123 electric butterfly valve operates based on the rotary motion of the electric actuator.

When the actuator receives a control signal, the internal motor generates torque and transmits the motion to the valve stem. The stem then rotates the valve disc to change the flow passage area.

The basic operating sequence can be described as:

Control signal → Actuator motor → Transmission mechanism → Valve stem → Valve disc → Flow opening/closing

The EA23 actuator is designed with a 0–90° running angle. Therefore, the valve can switch between the closed and open positions through the rotary movement of the actuator.

For ON/OFF control configurations, the control signal is used to move the valve to the closed or open position. With a 4–20 mA control signal, the valve can be used in systems requiring a control signal corresponding to the product configuration.

4. RMIPLAST EA23 Electric Actuator

The actuator is an important component that allows the PV123 to function as an electrically operated butterfly valve rather than a manually operated valve.

The RMIPLAST technical information introduces three actuator models:

• EA23-03
• EA23-05
• EA23-10

The models differ in motor power, rated current, output torque, and operating time.

EA23 Actuator Specifications

Specification	EA23-03	EA23-05	EA23-10
Power supply	AC220V	DC24V / AC220V	DC24V / AC220V
Motor power	20 W	6 W	12 W
Rated current	0.18 A	0.2 A	0.25 A
Output torque	25 N·m	50 N·m	100 N·m
Runtime	11 s	17 s	17 s
Running angle	0–90°	0–90°	0–90°
Frequency	50/60 Hz	50/60 Hz	50/60 Hz
Protection grade	IP65	IP65	IP65
Signal feedback	Passive Contact Signal	Passive Contact Signal	Passive Contact Signal
Weight	1.3 kg	2.3 kg	2.5 kg
Ambient temperature	-15°C ~ 55°C	-15°C ~ 55°C	-15°C ~ 55°C

The above specifications are taken from the Characteristics of Actuator table in the product documentation.

The output torque values are 25 N·m, 50 N·m, and 100 N·m, respectively. This is an important parameter when selecting an actuator for a valve because the actuator must provide sufficient torque to operate the valve disc under actual operating conditions.

5. Technical Specifications of the RMIPLAST PV123 Electric Butterfly Valve

According to the product documentation, the main specifications of the PV123 include:

Specification	PV123
Model	PV123
Type	Electric Butterfly Valve
Size	DN25–DN1000 (1″–40″)
Material	PVC-U, CPVC, PP-GF, PP-H
Operation	Electric ON/OFF; 4–20 mA control
Power	DC24V; AC220V; AC380V
Connection	Wafer
Standard	JIS 10K
Actuator series	EA23
Protection	IP65 for EA23 actuator
Running angle	0–90°

Note: The product information lists multiple material and power supply options for the PV123. The actual configuration should be confirmed according to the valve size, material, actuator, and control requirements of each application.

6. Advantages of the RMIPLAST PV123 Electric Butterfly Valve

6.1. Electrically Operated Opening and Closing

Instead of requiring personnel to operate the valve directly at the installation point, the PV123 uses an electric actuator to perform the opening and closing operation.

This is particularly useful for valves installed in difficult-to-access locations or in systems requiring centralized control.

6.2. Integration with Control Systems

The product documentation indicates two control methods:

• Electric ON/OFF
• 4–20 mA control

Therefore, the PV123 can be selected for different automation systems with different control requirements.

6.3. Wafer-Type Design

The wafer connection allows the valve to be installed between two pipe flanges without requiring a long flanged valve body.

This design provides a relatively compact configuration for piping systems and facilitates equipment arrangement within the same installation area.

6.4. PP Construction

The valve body and disc in the PV123 configuration shown in the documentation are specified as PP. This is one of the notable characteristics of the butterfly valve when plastic materials are preferred for the piping system.

However, actual suitability should be determined based on chemical compatibility and the specific operating conditions, rather than on the valve body material alone.

6.5. IP65-Rated Actuator

The EA23 electric actuator is specified with a Protection Class of IP65.

According to the product documentation, the actuator can operate within an ambient temperature range of -15°C to 55°C.

7. Applications of the RMIPLAST PV123 Electric Butterfly Valve

With its plastic butterfly valve design combined with an electric actuator, the PV123 can be considered for piping systems requiring automatic flow control.

Typical application groups include:

Water Treatment Systems

The electric butterfly valve can be used in piping lines where automatic opening and closing control is required in water treatment systems.

Chemical Piping Systems

The PP and FPM material configuration can be considered for chemical piping systems when the materials are confirmed to be compatible with the specific chemical, concentration, and operating temperature.

Industrial Piping Systems

The PV123 can be installed in piping lines where the valve needs to be operated remotely or integrated into a centralized control system.

Automation Systems

With ON/OFF control and the 4–20 mA control configuration indicated in the documentation, the valve can be used in systems requiring connection to control equipment or automation systems.

8. Selection of Valve and Actuator Models

When selecting the RMIPLAST PV123 electric butterfly valve, the nominal valve size should not be the only consideration. Required torque, power supply, control method, and operating conditions should also be evaluated.

8.1. Actuator Selection Based on Torque

The three EA23 models provide the following output torque:

• EA23-03: 25 N·m
• EA23-05: 50 N·m
• EA23-10: 100 N·m

Selection should be based on the torque requirement of the specific valve. An actuator should not be selected solely according to the DN size without checking the required operating torque.

8.2. Check the Power Supply

The actuator documentation indicates the following configurations:

• AC220V
• DC24V
• Some PV123 product information also mentions AC380V.

Therefore, the actual power supply available in the system should be confirmed before ordering to avoid selecting an actuator with an unsuitable power configuration.

8.3. Determine the Control Method

If the system only requires opening and closing operation, the ON/OFF configuration can meet the operating requirement.

For systems requiring a 4–20 mA control signal, the correct actuator and control module configuration should be confirmed before integration into the electrical control cabinet or PLC system.

8.4. Check the Material and Fluid

For water or chemical systems, the following factors should be checked:

• Fluid type
• Concentration
• Temperature
• Pressure
• Valve body material
• Seat material
• O-ring material

Particularly in chemical applications, confirming the compatibility between PP/FPM and the actual process fluid is an essential step before selecting the product.

9. Conclusion – RMIPLAST PV123 Electric Butterfly Valve

The RMIPLAST PV123 electric butterfly valve is a solution combining a wafer-type plastic butterfly valve with the EA23 Series electric actuator, designed for systems requiring automatic flow-control operation.

The product is introduced with a size range of DN25–DN1000 (1″–40″), Wafer JIS 10K connection, and ON/OFF and 4–20 mA control configurations. The EA23 actuator series includes EA23-03, EA23-05, and EA23-10, with output torque values of 25, 50, and 100 N·m respectively, IP65 protection, and a 0–90° operating angle.

With this configuration, the RMIPLAST PV123 can be considered for water treatment systems, industrial piping, chemical piping, and automation applications. During selection, the valve size, material, actuator torque, power supply, control signal, and actual fluid operating conditions should all be checked to determine the appropriate configuration.