Single Pressure Sensor

The SPS controls the pilot signal line by:

• blocking pilot hydraulic flow when trip condition occurs
• bleeding the pilot line pressure to depressurize safely

This “block & bleed” function ensures that downstream pilot-operated valves or actuators respond correctly during pressure abnormality conditions.

Yes. SPS can be configured for:
High Pressure trip / shutdown
Low Pressure trip / shutdown

This depends on the application requirement — for example high pressure protection or low pressure failure detection.

Petronash SPS is a:
3-way block and bleed valve
This means it can direct the pilot signal appropriately and vent pressure when required, providing reliable safety operation.

Dead band is the difference between:

• trip pressure
  and
• reset pressure

Petronash SPS is designed with minimum dead band, ensuring:

• accurate trip action
• faster reset and stable operation
• reduced false trip fluctuations

This is critical in hydraulic logic systems where stability is important.

Petronash SPS is available in two flow capacities:

Standard Flow: Cv 0.03

• Dead band ~ 5% @ max set point

High Flow: Cv 0.09

• Dead band ~ 10% @ max set point

This allows selecting the right SPS based on pilot signal line volume and response speed requirement.

Setpoint repeatability refers to how consistently the SPS trips at the same pressure point over repeated cycles. Petronash SPS provides:
Setpoint repeatability ±1%

This improves operational confidence and ensures reliable shutdown performance.

Petronash SPS supports both low and high set pressure ranges:

Low set pressure range: 2 to 100 Bar(g)
High set pressure range: 100 to 300 Bar(g)

This makes it suitable for multiple process line sensing requirements.

Petronash SPS uses:
Piston sensing type

Piston sensing provides reliable actuation, durability, and stable sensing performance under fluctuating process pressure conditions.

Petronash SPS is rated for:
Max instrument pressure: 12 Bar(g)

This helps protect pilot line instruments and maintains safety integrity in the control system.

The SPS includes a safety vent which helps identify sensing piston O-ring failure. This is a critical safety feature because it:

• provides early warning of internal seal failure
• prevents high pressure from reaching and damaging the instrument line
• improves safety and reduces risk of sudden system malfunction

Petronash SPS is available in premium corrosion and pressure-resistant materials:

• SS316L
• Duplex Stainless Steel
• Inconel

This ensures long service life even in harsh offshore and oil & gas environments.

Petronash SPS is engineered for safety logic and shutdown control, offering:

• 3-way block and bleed action
• minimum dead band between trip and reset
• high repeatability ±1%
• safety vent protection for seal failure detection
• material options suited for harsh environments

It is a reliable component for critical hydraulic control systems.

Yes. Petronash can support customization such as:

• standard flow or high flow Cv selection
• trip and reset pressure tuning
• material selection (SS / Duplex / Inconel)
• connection and integration readiness

This ensures compatibility with various WHCP / HPU / hydraulic panel designs.

Absolutely. Petronash can supply SPS:

• as standalone pressure sensing pilot valves, or
• integrated into complete systems such as WHCPs, hydraulic skids, HPUs and control panels

This helps achieve system-level matching and reduces multiple vendor dependency.