HDI Gauge systems used in oil and gas operations are often exposed to harsh environments and continuous use. To maintain accuracy, reduce downtime, and extend the service life of these systems, it is critical to have access to replacement components that are both durable and compatible. A full range of spare parts is available to support maintenance needs, including displays, sensors, cables, processor boards, connectors, and housing elements.

These parts are designed to be interchangeable across compatible models, allowing operators to replace worn or damaged components without requiring full system replacement. This modularity improves cost efficiency and simplifies logistics, especially in remote field locations. Most components are field-replaceable, reducing the need for specialized service technicians and enabling faster return to operation.

Processor boards and display units typically share a common design across multiple gauge models, streamlining inventory requirements and providing flexibility during urgent repairs. Sensors are matched with gauge heads for calibration accuracy but can be easily re-paired and recalibrated in the field or through service support if needed.

Using certified or manufacturer-specified replacement components ensures continued compliance with safety standards, maintains the expected measurement accuracy, and supports the longevity of the equipment. These parts are often backed by service documentation or part tracking for maintenance records and equipment history management.

In short, a well-organized supply of compatible, high-quality parts is essential for effective pressure and temperature gauge system upkeep in demanding industrial settings.

The HDI 2522 Choke Position Indicator System is a 4-inch solid-state electronic device used to precisely monitor the position of chokes in oil and gas operations. It provides position readings in 1% increments from fully closed (0%) to fully open (100%). The system supports a variety of choke types by interfacing with linear, rotary, or retractable potentiometers, making it adaptable to different choke designs commonly used in the industry.

This indicator eliminates the need for pneumatic air lines traditionally used for position sensing, improving reliability and reducing maintenance requirements. The gauge features a liquid crystal display (LCD) with both a numeric readout and an analog bar graph for quick visual interpretation of choke position. It includes a low battery indicator to ensure continuous operation.

The system is battery powered with a field-replaceable 3.6 Vdc power pack rated for one year of continuous operation. The internal battery powers the gauge electronics but not optional 4-20mA output loops. The 2522 supports up to two additional slave gauges for remote position displays, allowing flexible monitoring setups across control rooms.

Its robust, impact-modified polycarbonate/PBT alloy case is UV stabilized and sealed with gaskets to protect the electronics. The device operates within a temperature range of -40°F to 176°F (-40°C to 80°C) and is suitable for harsh oilfield environments.

Installation is straightforward, with recommended cable lengths up to 1,500 feet between the gauge and potentiometer, and customizable cable options available to fit specific site needs. Each system is factory matched and serialized, supplied with a signed calibration certificate, ensuring accuracy to within ±1% full scale.

Overall, the 2522 system provides a reliable, accurate, and low-maintenance solution for real-time choke position monitoring, enhancing operational control and safety in oil and gas production.

The Gauge Root Valve Male x Female is a high-pressure valve designed for precise isolation and control of gauge lines in oil and gas industry. It allows for secure attachment of pressure gauges or instruments while maintaining reliable sealing and flow control. The male x female connection simplifies installation by providing a compact and leak-resistant interface, suitable for both standard and custom piping setups.

This valve is built to withstand pressures up to 6000 psi, with optional higher ratings available upon request, and operates over a wide temperature range from -50°C to 230°C, with extended ratings up to 500°C when using graphite seals. The metal-to-metal body bonnet seal ensures consistent high-pressure performance without relying on O-rings.

The valve’s stem incorporates a backseat design for added safety, rolled threads for smooth operation, and a self-centering, non-rotating tip that provides consistent, leakage-free shutoff. Packing is positioned below the stem threads to prevent media contact, and an adjustable gland retainer enhances stability and long-term performance. A removable T-handle enables low-torque operation, while the stem dust cap prevents contamination and protects the actuating threads.

Manufactured to ISO 9001, PED, ATEX, ASME B16.34, and MSS-SP-99 standards, each valve undergoes rigorous factory testing, including pneumatic leak checks at 1000 psi, to ensure reliability and compliance. Optional vibration, temperature, and helium testing can be performed to meet specific process requirements. Heat code traceability and NACE-compliant material options provide confidence in both performance and quality.

This combination of features makes the Gauge Root Valve Male x Female an ideal choice for safe, accurate, and durable gauge isolation in critical industrial systems.

The L type 2 valve manifold is a compact and reliable solution designed for connecting impulse lines to pressure transmitters or gauges in industrial systems. Its primary purpose is to allow safe and efficient measurement of process pressures while providing the ability to isolate, vent, or calibrate instruments without disrupting the process.

The L type configuration refers to the layout of the two valves, arranged in an L shape, which allows for simple and intuitive operation. This design enables the user to block the process pressure, bleed off trapped pressure, and perform calibration on static pressure transmitters or gauges. The arrangement minimizes installation space while ensuring clear and accessible operation.

Pipe to pipe manifolds are designed to connect directly to process lines using standard piping connections. This allows for straightforward integration with impulse lines and reduces the need for additional fittings. The manifold provides a secure and leak-free connection while maintaining easy access for maintenance, calibration, and testing of instruments. Overall, the L type 2 valve manifold combines compact design, operational simplicity, and high reliability for critical measurement applications.

Tube Fittings Male Connectors are precision parts used to connect tubing directly to a threaded port in oil and gas systems. One side of the connector is designed for tubing, while the other side has an ISO tapered male thread that screws into valves, manifolds, pumps, or other equipment.

These connectors are made for high-pressure applications, with working pressure ratings up to 6000 PSI. The tapered thread design creates a tight, reliable seal that prevents leaks of gas or liquid, even under vibration, temperature changes, or fluctuating pressures.

They are commonly used in drilling rigs, wellhead equipment, hydraulic control lines, instrumentation systems, and process piping. Available sizes include 1/8”, 5/16”, 3/8”, and 1/2”, making them suitable for a wide range of tubing diameters.

By ensuring a strong, leak-free connection, Tube Fittings Male Connectors improve safety, reduce downtime, and support efficient operation in demanding oil and gas environments.

This 2-way panel-mounted ball valve with Tube OD connections is designed to control, start, or stop fluid flow in oil and gas tubing systems. Its 2-way configuration allows fluid to flow in either direction between two ports, providing reliable on/off operation for pipelines, sampling lines, injection systems, or bypass lines.

The Tube OD connections allow direct attachment to tubing without additional fittings, simplifying installation and reducing potential leak points. The panel-mounted design enables operation from a control panel, making it suitable for systems where multiple valves are centralized or where physical access to the tubing is limited.

The valve features a floating ball design that ensures leak-proof shut-off under high-pressure conditions. Standard working pressure is 6000 PSI. It is designed and tested to ASME B16.34 for pressure-temperature ratings, and valve ratings follow ASME Process Piping Code B31.3. The valve has been type tested to MSS-SP-99 and offers a temperature range from –40 °F to 450 °F (–40 °C to 232 °C).

Operation is simple with a quarter-turn handle, providing fast, low-torque control. The three-piece construction allows easy installation and maintenance, including replacement of internal components. Each valve is factory tested pneumatically with nitrogen gas at 1000 psig for seat and stem leakage, with a maximum allowable leak rate of 0.1 sec/min. Optional additional tests, such as vibration, temperature, and helium, are available.

The valve is available in a range of corrosion-resistant materials, including SS 316, SS 316L, Duplex, Super Duplex, Hastelloy, Inconel, and Monel. Optional compliance with NACE MR0175 and fire-safe designs makes it suitable for demanding industrial environments. Heat code traceability ensures material verification and quality assurance.

The Gauge Root Valve Male x Female 1/4” NPT is designed to provide reliable isolation and control for pressure measurement instruments in chemical, petrochemical, and oil and gas applications. It allows a secure connection between the process line and pressure gauges, ensuring accurate readings while preventing backflow and leakage. This size is commonly used where compact instrumentation connections are needed, offering precise control in tight piping configurations.

The valve is constructed and tested according to ASME B16.34 for pressure and temperature ratings and complies with ISO 9001, PED, and ATEX standards, confirming quality and suitability for use in hazardous or pressurized environments. It has a standard working pressure of 6000 PSI, with higher pressures available upon request. The metal-to-metal body and bonnet seal ensures high-pressure and temperature performance, and the self-centering, non-rotating stem tip provides consistent shutoff for leak-free operation.

Additional design features include a simple, adjustable gland retainer for stable packing, a back seat for added security, a removable T-handle for low torque operation, and a dust cap to protect the stem from contamination. All valves are 100% factory tested for seat and packing leakage using nitrogen gas at 1000 PSI, ensuring reliable performance. This valve is ideal for isolating and protecting pressure measurement instruments.

The H Type 3 Valve Manifold – Flange to Flange is designed for connecting impulse lines and differential pressure transmitters in oil and gas and industrial process applications. It consists of two block valves, one equalizer valve, and two ¼” Female NPT vent/test connections, providing accurate isolation, calibration, and maintenance of instrumentation.

The manifold is rated for a standard working pressure of 6000 PSI, with maximum ratings up to 10000 PSI available on request. Temperature ratings range from -50°C to 230°C, with 500°C possible using graphite seals. The body features a metal-to-metal seal for high pressure and temperature applications, eliminating the need for O-ring seals, and materials can be supplied according to NACE MR 01 75 standards.

Each valve is 100% factory tested per international pressure standards, including pneumatic testing with nitrogen at 1000 PSI for seat and packing leakage, with a maximum allowable leak rate of 0.1 sec/min. Stems have back seats, rolled threads, and self-centering non-rotating tips for consistent, leak-free operation. The H Type design allows reliable, safe, and precise operation in high-pressure, high-temperature process environments.