Item	Description
Product Name	Bifold Pneumatic Solenoid Valve FP10P-S2-04-32-NU-V-77A-24D-LE-65
Valve Type	3 Way, 2 Position Direct Acting Solenoid Valve
Function	Controls and switches instrument air in pneumatic and automation systems
Body Material	316 Stainless Steel
Connection Size	1/4” NPT Ports (Body Ported – Stainless Steel)
Operation Type	Normally Universal, Latch Energised
Voltage	24VDC
Power Consumption	6.5 Watts
Explosion Protection	Ex d (Explosion-Proof)
Cable Entry	M20 x 1.5
Flow Coefficient	Cv 0.75
Applications	Oil & gas, petrochemical, offshore, power generation, hazardous area pneumatic systems

Bifold Pneumatic Solenoid Valve Direct Acting FP10P-S2-04-32-NU-V-77A-24D-LE-65 – Explosion-Proof Stainless Steel Solenoid Valve for Hazardous Area Applications

Introduction to Bifold Pneumatic Solenoid Valve FP10P Series

In industrial automation and process control systems, solenoid valves serve as critical components for switching, controlling, and isolating instrument air circuits. The Bifold Pneumatic Solenoid Valve Direct Acting FP10P-S2-04-32-NU-V-77A-24D-LE-65 is engineered to deliver dependable performance in hazardous and demanding industrial environments.

Manufactured with 316 stainless steel construction, 1/4” NPT body ported connections, and explosion-proof (Ex d) certification, this direct acting 3-way 2-position solenoid valve is specifically designed for oil & gas, petrochemical, offshore, and power generation facilities where reliability and safety are paramount.

As a professional valve distributor and valve stockist, we supply genuine Bifold solenoid valves to support industrial pneumatic systems, emergency shutdown systems, and automation control loops.

What is a Direct Acting Pneumatic Solenoid Valve?

A direct acting solenoid valve is an electrically operated valve that directly opens or closes the flow path when energized, without requiring differential pressure assistance. This design ensures:

Immediate response time
Reliable switching even at zero pressure
Stable operation in low-pressure instrument air systems
Consistent actuation in safety-critical applications

Unlike pilot-operated valves, direct acting solenoid valves are ideal for emergency shutdown (ESD), safety instrumented systems (SIS), and critical actuator control where pressure conditions may vary.

Product Overview: FP10P-S2-04-32-NU-V-77A-24D-LE-65

The Bifold FP10P-S2-04-32-NU-V-77A-24D-LE-65 is a high-performance, explosion-proof solenoid valve designed for pneumatic switching applications.

Core Specifications

Valve Type: Pneumatic Solenoid Valve
Operation: Direct Acting
Configuration: 3 Way, 2 Position
Function: Normally Universal
Body Material: 316 Stainless Steel
Connection Size: 1/4” NPT Ports
Porting: Body Ported – Stainless Steel
Voltage: 24VDC
Power Consumption: 6.5 Watts (Latch Energised)
Explosion Protection: Ex d
Cable Entry: M20 x 1.5
Flow Coefficient (Cv): 0.75
Energising Type: Latch Energised

This configuration ensures efficient, stable, and secure switching performance in hazardous industrial environments.

Key Features and Technical Advantages

1. 316 Stainless Steel Construction

The valve body is manufactured from high-grade 316 stainless steel, offering:

Superior corrosion resistance
Compatibility with harsh chemical environments
Long-term durability in offshore and marine conditions
Resistance to moisture, salt spray, and aggressive gases

This material selection makes it suitable for upstream oil & gas facilities and petrochemical plants.

2. Direct Acting Mechanism

The direct acting mechanism ensures that the solenoid coil directly moves the internal plunger when energized.

Benefits include:

Fast switching response
No reliance on system pressure
Reliable operation in low-pressure applications
Stable performance during pressure fluctuation

This is particularly important in safety shutdown systems and automated actuator control circuits.

3. 3 Way, 2 Position Configuration

The 3/2 valve configuration provides flexible pneumatic control by allowing:

Air supply routing
Actuator pressurization
Exhaust venting
Changeover control

This configuration is widely used in:

Pneumatic actuator systems
Control valve pilot circuits
Emergency shutdown systems
Instrument air switching panels

4. Latch Energised Design

The latch energised configuration means the valve maintains its position with minimal energy once actuated.

Advantages:

Reduced continuous power consumption
Improved energy efficiency
Lower heat generation
Enhanced coil lifespan

Latch energised systems are commonly used in critical applications where power stability and energy efficiency are important.

5. Explosion-Proof (Ex d) Certification

The Ex d explosion-proof rating ensures safe operation in hazardous areas where flammable gases may be present.

Key benefits:

Suitable for hazardous area classification
Reduces ignition risk
Complies with industrial safety regulations
Ideal for oil & gas and petrochemical plants

Explosion-proof design is mandatory in many refinery, offshore, and gas processing facilities.

6. 24VDC Industrial Standard Operation

Operating at 24VDC ensures compatibility with standard industrial automation systems and control panels.

Benefits include:

Safe low-voltage operation
Easy integration into PLC systems
Reliable long-term performance
Reduced electrical hazard risk

7. Cv 0.75 Flow Capacity

With a flow coefficient of Cv 0.75, this solenoid valve provides adequate airflow capacity for:

Small to medium pneumatic actuators
Instrument air circuits
Pilot valve applications
Automation control loops

Correct Cv sizing ensures optimal actuator response and system efficiency.

Application Industries

Oil & Gas Industry

The Bifold FP10P solenoid valve is commonly installed in:

Emergency shutdown (ESD) systems
Pneumatic actuator control
Safety instrumented systems (SIS)
Gas processing facilities

Its explosion-proof rating and stainless steel construction make it suitable for hazardous upstream and downstream environments.

Petrochemical Plants

Petrochemical facilities require reliable switching devices in volatile environments.

Typical applications include:

Control valve pilot systems
Pneumatic signal switching
Compressor automation
Interlock safety systems

Stable solenoid performance ensures process continuity and safety compliance.

Offshore Platforms

Offshore environments demand corrosion-resistant and explosion-proof components.

316 stainless steel body provides:

Protection against saltwater corrosion
Resistance to humidity
Long operational lifespan

Direct acting design ensures consistent performance despite fluctuating pressure conditions.

Power Generation

In power plants, solenoid valves are used for:

Turbine auxiliary systems
Boiler control instrumentation
Pneumatic sequencing circuits
Safety valve actuation

24VDC operation integrates easily into plant automation systems.

Other Bifold Solenoid Valve Models

In addition to FP10P-S2-04-32-NU-V-77A-24D-LE-65, available variants include:

FP10P-S2-04-32-NU-V-77A-24D-57-K85
FP10P-S1-08-32-NU-V-77A-24D-57-K85
FP10P-S1-08-32-NU-V-77A-24D-57
FP10P-S1-08-32-NU-V-77A-24D-35

These models may differ in configuration, enclosure type, and hazardous area rating to meet specific project requirements.

Integration with Industrial Valve Systems

Pneumatic solenoid valves work alongside other industrial valves including:

Ball valves for isolation
Gate valves for shut-off service
Check valves for backflow prevention
Control valves for modulation
Safety relief valves for overpressure protection

In automated systems, solenoid valves serve as pilot devices controlling actuators that operate larger industrial valves.

Installation and Maintenance

Installation Considerations

Verify correct NPT thread sealing
Confirm 24VDC power supply compatibility
Ensure hazardous area compliance
Use appropriate M20 x 1.5 cable gland

Maintenance Practices

Periodic coil inspection
Internal seal verification
Instrument air quality monitoring
Functional switching test

Routine maintenance ensures long service life and reliable performance.

Why Choose Bifold Pneumatic Solenoid Valve?

Hazardous Area Compliance

Explosion-proof Ex d certification ensures safe operation in volatile environments.

Durable Stainless Steel Construction

316 stainless steel ensures long-term corrosion resistance.

Energy Efficient Latch Design

Minimizes continuous power usage and heat generation.

Reliable Direct Acting Performance

Provides stable switching without pressure dependency.

Trusted Industrial Brand

Bifold is globally recognized for high-quality pneumatic and instrumentation components.

Our Position as Valve Distributor and Stockist

As an experienced valve distributor and valve stockist, we supply genuine Bifold Pneumatic Solenoid Valves for industrial automation and hazardous area applications.

We support industries including:

Oil & Gas
Petrochemical
Offshore
Power Generation
Industrial Manufacturing

In addition to solenoid valves, we supply ball valves, gate valves, check valves, control valves, actuators, and safety relief valves to provide complete industrial valve solutions.

Our technical team assists with product selection, hazardous area verification, and pneumatic system compatibility.

Conclusion

The Bifold Pneumatic Solenoid Valve Direct Acting FP10P-S2-04-32-NU-V-77A-24D-LE-65 is a high-performance, explosion-proof industrial solenoid valve designed for precise instrument air control in hazardous environments.

With 316 stainless steel construction, 1/4” NPT ports, 24VDC latch energised operation, Cv 0.75 flow capacity, and Ex d certification, it provides reliable and energy-efficient pneumatic switching for oil & gas, petrochemical, offshore, and power generation applications.

For reliable supply from a trusted valve distributor or valve stockist, contact us today to discuss your industrial pneumatic control requirements.

Bifold Pneumatic Solenoid Valve Direct Acting FP10P-S2-04-32-NU-V-77A-24D-LE-65