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 Monoflange Single Body Double Block and Bleed Valve combines two isolation points and a vent in a single compact body, providing safe and reliable isolation in oil and gas and process systems. It features a ball isolation mechanism for leak-proof shut-off and a needle drain to safely vent the cavity between the isolation points. This design is particularly suitable for instrument or gauge isolation, chemical injection, sampling, and piping interface applications, where compact size and reduced leak paths are critical.

It's monoflange construction reduces weight, footprint, and the number of potential leak points compared to traditional multi-valve assemblies. The valve accommodates sizes from 1/2” to 2” and pressure classes from 150 to 2500, with both reduced and full bore options to suit different process requirements.

Manufactured from high-quality materials including SS 316, SS 316L, Duplex, Super Duplex, Hastelloy, Inconel, and Monel, the valve can be supplied with NACE-compliant materials for corrosive environments. All units are designed, tested, and certified in accordance with EEMUA 182, API 6D, ISO 17292, and ASME B16.34 standards and are factory tested to ensure reliable dual isolation and controlled cavity venting.

The Double Block & Bleed Valve Flange x Flange 3/4” (DN 20) with Ball isolation and Needle drain provides dual isolation in oil and gas piping systems. The first ball isolates upstream flow while the second ball isolates downstream flow. The needle drain vents trapped pressure between the two isolation points, making it suitable for instrument or gauge isolation, chemical injection, or sampling in operations where maintenance or measurement is required without interrupting the main process.

This specific 3/4” (DN 20) valve is rated for Class 150 service. It has a flange diameter of 100 mm, a bore of 69.9 mm, a flange thickness of 15.9 mm, and uses four bolts of 1/2” size. The face-to-face length is 203 mm. It is manufactured from materials compatible with oil and gas environments and meets ASME B16.34, API 6D, and ISO 17292 standards for pressure-temperature performance and reliability.

The Gauge Root Valve Male x Female with Lagging Extension in 1/4” NPT is a small but robust valve used to safely isolate pressure gauges in pressurized systems. It is designed to handle pressures up to 6000 PSI and temperatures from -50°C to 230°C, providing a reliable seal and leak-free operation. The lagging extension lets the valve be operated without removing insulation, protecting both the system and the operator.

The valve includes features to make it safe and easy to use: a back seat on the stem for extra security, a self-centering non-rotating tip for consistent shutoff, and an adjustable gland retainer to keep the packing tight. The removable T-handle allows smooth operation with minimal effort, while the dust cap prevents dirt or debris from entering the valve. All valves are factory tested for performance, include heat code traceability, and can be made from materials compliant with NACE MR 01-75 for corrosion resistance.

This valve is ideal for oil and gas systems where isolating gauges safely, maintaining insulation, and ensuring reliable operation are essential.

The HDI 1000B Pressure Gauge System is an intrinsically safe, battery-powered, solid-state electronic pressure gauge designed for accurate and reliable pressure measurement in demanding industrial environments. It measures pressures ranging from 30 psi up to 20,000 psi with an accuracy of ±0.50% of full scale. The system features a durable design with no fluids or moving parts, reducing maintenance requirements and improving long-term reliability.

The gauge includes a clear liquid crystal display (LCD) that combines a five-digit numeric readout for precise pressure values with a 101-segment analog bar graph for quick trend visualization. The display is easily readable in various lighting conditions and includes a low battery indicator to ensure continuous operation.

The 1000B system is modular, comprising a gauge display, inline cable, and sensor assembly. This design allows the display to be positioned close to or remotely from the pressure measurement point, providing flexibility in installation. The system supports multiple connection types including 2” Male NPT, 2” 1502, 2” 2002/2202, or flanged connections to fit different piping standards.

Power is supplied by a replaceable internal 3.6 VDC battery pack, which typically lasts up to 18 months during continuous operation. The gauge system is designed to retain calibration and settings during battery changes or power interruptions, enhancing reliability in field use.

For integration with control systems, the 1000B offers optional 4-20 mA or 0-1 V outputs, enabling remote monitoring, data logging, or connection to PLCs and chart recorders. The system is built to withstand high vibration environments, making it suitable for offshore, drilling, and other heavy industrial applications.

Overall, the 1000B Pressure Gauge System provides a precise, low-maintenance, and versatile solution for pressure measurement needs where safety, accuracy, and durability are critical.

In oil and gas systems, controlling the direction of fluid flow is critical to protect pipelines, pumps, and equipment. The 1/4" poppet type check valve with female × female NPT connections provides reliable uni-directional flow, preventing backflow and maintaining system integrity. Its compact size makes it ideal for small diameter lines, instrumentation, sampling, and control applications, while the female × female connections allow secure inline installation without additional fittings.

The valve has a standard working pressure of 6000 PSI, with optional configurations rated up to 10000 PSI. Selectable cracking pressures from 1/3 to 25 PSI allow precise adaptation to system requirements. It is available in corrosion-resistant materials including SS 316, SS 316L, Duplex, Super Duplex, Hastelloy C276, Inconel 625, Monel 400, and Brass, ensuring durability in demanding oil and gas environments.

All valves are factory tested for cracking and reseal performance, with pneumatic testing at 1000 psig to verify seat integrity. Heat code traceability guarantees quality and material verification, and additional testing, including vibration, temperature, and helium, is available for applications requiring maximum reliability.

Square Body Needle Valves Male x Female are engineered for precise flow control and isolation in high-pressure piping systems. The square body design provides a rigid, compact structure that allows for stable mounting, easy wrench access, and alignment during installation. The male and female threaded ends enable secure connections to instrumentation, piping, or process equipment, ensuring leak-tight operation.

These valves are used in oil and gas applications such as connecting impulse lines, controlling flow to pressure transmitters, and isolating instrumentation for maintenance or calibration. The square body allows for easy integration into compact manifolds or tight piping layouts where space and alignment are critical.

Constructed to meet ASME B16.34 and MSS-SP-99 standards, the valves are rated for standard working pressures of 6000 psi, with optional higher-pressure ratings available. They operate effectively over a wide temperature range and are factory-tested for seat and packing leakage, ensuring reliable, consistent performance in demanding field conditions.

The Monoflange DBB Double Block and Bleed Valve with Needle-Needle-Needle configuration is designed to provide dual isolation and safe venting in oil and gas, chemical, and process systems. Both isolation points use needle valves, allowing precise control of flow and pressure in the cavity between the two isolation points, which minimizes leakage and ensures accurate venting. This configuration is particularly suited for instrument and gauge isolation, chemical injection, and sampling applications, where fine control and safety are critical.

The monoflange design integrates the two isolation valves and the bleed into a single compact body. This eliminates the need to bolt together separate valves, reducing the number of joints, potential leak paths, and overall weight, while saving installation space and simplifying maintenance. The valve can accommodate flange sizes from 1/2” to 2” and is rated for Class 150 to Class 2500, making it suitable for a wide range of high-pressure applications.

Manufactured to recognized industry standards including ASME B16.34, API 6D, and ISO 17292, the valve is available in a variety of materials such as SS 316, SS 316L, Duplex, Super Duplex, Hastelloy, Inconel, and Monel. Optional NACE MR-0-175 compliant materials are available for corrosive environments. In-built vent valves and low emission testing ensure the valve meets stringent safety and environmental requirements, providing a reliable solution for critical fluid control applications.