Instrumentation & Control Components
Measurement, Control, and Monitoring Devices for Oil & Gas Processes
Instrumentation is the nervous system of every oil and gas facility. Pressure transmitters monitor wellhead performance. Temperature sensors protect compressor bearings. Flow meters quantify fiscal transfer. Level instruments prevent tank overfills. Without reliable, correctly specified instrumentation, safe and efficient operations are impossible.
HogerSP supplies a complete range of process instrumentation, control valves, analytical equipment, and hazardous area components from qualified global manufacturers. Every instrument comes with full calibration certificates, material traceability, and hazardous area certification documentation.
Our Instrumentation Categories at a Glance
| Category | Primary Function | Key Products |
|---|---|---|
| Pressure Instrumentation | Measure and transmit pressure data | Pressure gauges, transmitters, switches, differential pressure |
| Temperature Instrumentation | Measure and transmit temperature data | Thermocouples, RTDs, thermowells, temperature transmitters |
| Level Instrumentation | Measure liquid and interface levels | Radar, guided wave radar, ultrasonic, displacer, float switches |
| Flow Instrumentation | Measure and quantify fluid flow | Coriolis, ultrasonic, vortex, differential pressure, turbine meters |
| Analytical Instrumentation | Analyze fluid composition and quality | pH, conductivity, gas detectors, moisture analyzers |
| Instrument Valves & Manifolds | Isolate, vent, and calibrate instruments | Ball valve, needle valve, 2-way/3-way/5-way manifolds |
| Instrument Tubing & Fittings | Connect instruments to process | Twin ferrule, single ferrule, compression fittings, tubing |
| Junction Boxes & Enclosures | Housing for electrical and instrument terminations | Ex d / Ex e enclosures, stainless and GRP |
| Cable Glands & Accessories | Cable entry sealing and termination | Armoured, unarmoured, hazardous area, barrier glands |
SUBCATEGORIES
PRESSURE INSTRUMENTATION
Local Indication, Transmitters, and Switches for Process Pressure Measurement
Pressure is the most measured process variable in oil and gas. From wellhead flowing pressure to refinery column differential, accurate pressure measurement is fundamental to process control, safety, and asset integrity.
Pressure Instrumentation
Pressure Gauges
Direct-reading local indicators. Simple, reliable, no power required.
| Type | Description | Application |
|---|---|---|
| Bourdon Tube Gauge | C-shaped or helical tube deflects with pressure. Most common type | General process, local indication |
| Diaphragm Gauge | Flexible diaphragm deflects. Used with diaphragm seals | Low pressure, corrosive fluids |
| Capsule Gauge | Two diaphragms joined. Sensitive | Very low pressure, draft measurement |
| Differential Gauge | Two bourdon tubes or diaphragms. Indicates difference between two pressures | Filter monitoring, level measurement via DP |
| Liquid-Filled Gauge | Case filled with glycerin or silicone oil. Dampens pointer flutter | Pulsating or vibrating service (pumps, compressors) |
| Digital Gauge | Electronic sensor with digital display. High accuracy | Calibration, high-precision applications |
Key Specifications:
- Dial Size: 63mm, 100mm, 150mm, 250mm
- Accuracy Class: 0.1% (precision) to 2.5% (general)
- Materials: Brass, 316 SS (wetted), 304 SS (case)
- Process Connection: 1/4″, 1/2″ NPT, BSP, flanged
- Options: Blow-out back (safety), weatherproof, glycerin-filled
Pressure Transmitters
Electronic instruments converting pressure to a proportional 4-20mA or digital (HART, Modbus, Fieldbus) output signal for the plant control system.
| Type | Sensing Technology | Application |
|---|---|---|
| Gauge Pressure Transmitter | Piezoresistive, capacitive, or strain gauge | Measures pressure relative to atmosphere |
| Absolute Pressure Transmitter | Sealed vacuum reference | Vacuum distillation, barometric, subsea |
| Differential Pressure (DP) Transmitter | Two pressure inputs | Flow (orifice plate), level (hydrostatic), filter condition |
| Multivariable Transmitter | Measures DP, static pressure, temperature. Calculates mass flow | Gas flow measurement |
| Submersible Pressure Transmitter | Sealed for immersion | Tank level, well water depth |
| Smart / HART Transmitter | Digital communication superimposed on 4-20mA | Asset management, remote configuration, diagnostics |
Key Specifications:
- Output: 4-20mA, HART, Modbus, Fieldbus, Profibus PA
- Accuracy: ±0.04% to ±0.1% of span (typical)
- Turndown: 50:1 to 100:1
- Hazardous Area: ATEX, IECEx, FM (Ex ia, Ex d, Ex n)
- Material: 316L SS, Hastelloy C276, Monel (diaphragm); 316 SS or Aluminum (housing)
Pressure Switches
Electromechanical or electronic devices that open or close an electrical contact at a predetermined pressure set point.
| Type | Description | Application |
|---|---|---|
| Mechanical (Bourdon Tube or Diaphragm) | Pressure moves a mechanical snap-action microswitch | Pump start/stop, alarm, ESD triggers |
| Electronic (Solid State) | Pressure sensor + electronic threshold. Adjustable set point | High reliability, remote diagnostics |
| Differential Pressure Switch | Triggers on DP between two inputs | Filter clogging alarm, flow failure |
Key Specifications:
- Set Point: Field-adjustable or factory-set
- Switching Contacts: SPDT or DPDT
- Deadband: Fixed or adjustable
- Housing: Weatherproof IP66, flameproof Ex d
Diaphragm Seals / Remote Seals
Isolate the pressure instrument from the process fluid while transmitting pressure hydraulically through a fill fluid.
- Purpose: Protect instruments from corrosive, viscous, or high-temperature process fluids
- Membrane Materials: 316L SS, Hastelloy C276, Monel, Tantalum, PTFE
- Fill Fluids: Silicone oil (general), glycerin, halocarbon (oxygen service), Neobee M-20 (food)
- Connection Types: Threaded, flanged, saddle, sanitary
TEMPERATURE INSTRUMENTATION
Sensors, Transmitters, and Protection Wells for Process Temperature Measurement
Temperature measurement is essential for process control, safety shutdown, asset protection, and custody transfer compensation. Every temperature loop comprises three elements: the sensor (thermocouple or RTD), the thermowell (process protection), and the transmitter (signal conditioning).
Temperature Instrumentation
Temperature Sensors
| Sensor Type | Principle | Temperature Range | Best For |
|---|---|---|---|
| RTD (Pt100) | Platinum resistance changes with temperature | -200°C to +600°C | Accuracy, stability, custody transfer |
| RTD (Pt1000) | Higher resistance, lower self-heating | -200°C to +600°C | Remote locations, long cable runs |
| Thermocouple Type K | Chromel-Alumel | -270°C to +1,370°C | High temperature, general purpose |
| Thermocouple Type J | Iron-Constantan | -210°C to +1,200°C | Reducing atmospheres |
| Thermocouple Type T | Copper-Constantan | -270°C to +400°C | Low temperature, cryogenic |
| Thermocouple Type E | Chromel-Constantan | -270°C to +1,000°C | High output (mV), cold environments |
| Thermocouple Type N | Nicrosil-Nisil | -270°C to +1,300°C | High temperature (more stable than K at elevated temps) |
RTD vs Thermocouple Selection
| Parameter | RTD (Pt100) | Thermocouple |
|---|---|---|
| Accuracy | Higher (±0.1°C achievable) | Lower (±0.5°C to ±2°C) |
| Stability | Excellent long-term | Drifts with time at high temperature |
| Temperature Range | Up to +600°C | Up to +1,800°C+ |
| Response Time | Slower | Faster (when exposed junction) |
| Cost | Higher | Lower |
| Cable | Copper wire (no special cable) | Thermocouple extension cable required |
Thermowells
Protective housings that isolate the temperature sensor from direct process contact. Allow sensor replacement without process shutdown.
Materials:
- 316L SS (general purpose)
- 304 SS (less corrosive)
- Inconel 600/625 (high temperature, corrosive)
- Hastelloy C276 (acid service)
- Duplex (chlorides, seawater)
Connection Types:
- Threaded (1/2″ NPT, 3/4″ NPT, 1″ NPT)
- Flanged (ASME B16.5)
- Socket Weld
- Van Stone (lagging tip for insulated pipes)
Bore Types:
- Stepped bore (reduced tip diameter for faster response)
- Straight bore
- Tapered bore (high velocity, vibration resistance)
Vibration Calculation: Thermowells in high-velocity service (gas lines, steam) must undergo Wake Frequency Calculation (WFC) per ASME PTC 19.3 TW to ensure they will not fail from vortex-induced vibration.
Temperature Transmitters
Convert sensor signal to 4-20mA or digital output.
- Head-Mounted: Compact transmitter inside the sensor connection head
- Field-Mounted: In a separate field enclosure. 2-wire loop powered
- DIN Rail Mounted: In control room marshalling cabinet
- Output: 4-20mA + HART, Modbus, Fieldbus
- Sensor Input: Configurable for RTD (2/3/4-wire), thermocouple, mV, ohm
LEVEL INSTRUMENTATION
Continuous and Point Level Measurement for Tanks, Vessels, and Separators
Level measurement is critical for process containment, inventory management, and safety. Incorrect level readings can lead to tank overfills, pump cavitation, separator carryover, or emergency shutdowns.
Level Instrumentation
Continuous Level Measurement
| Technology | Principle | Best For |
|---|---|---|
| Non-Contact Radar (80GHz / 26GHz) | FMCW or pulse radar. Microwaves reflect off liquid surface | Custody transfer, high accuracy, no process contact |
| Guided Wave Radar (GWR) | Radar pulse guided along probe. Reflects at liquid surface | Interface measurement (oil/water), turbulent surfaces |
| Ultrasonic | Sound wave reflects off liquid surface | Non-contact, water, open tanks |
| Differential Pressure (Hydrostatic) | Measures head pressure of liquid column | Pressurized vessels, simple, reliable |
| Displacer | Buoyancy force on submerged displacer changes with level | Separators, high pressure, interface measurement |
| Capacitance | Change in capacitance between probe and vessel wall | Point or continuous, conductive/non-conductive |
| Magnetostrictive | Float with magnet slides on probe. Pulse detects position | High accuracy, custody transfer, clean fluids |
| Servo / Float & Tape | Motor-driven float follows liquid surface | Bulk storage tanks, very high accuracy |
Point Level Switches
| Technology | Description | Application |
|---|---|---|
| Float Switch | Mechanical float with magnetic or direct linkage | Simple, reliable, pump control, high/low alarm |
| Vibrating Fork (Tuning Fork) | Piezoelectric vibration. Dampened when covered by liquid | High reliability, ignores foam, coatings, turbulence |
| Thermal Dispersion | Temperature difference between heated and reference sensor | Flow/no-flow, interface detection |
| Capacitance | Change in capacitance when liquid covers probe | Viscous, coating, corrosive |
| Conductivity | Electrode conducts when submerged | Water-based liquids. Simple, low cost |
Interface Measurement
Critical in separators and desalters where oil, water, and emulsion layers must be distinguished.
| Technology | Application |
|---|---|
| Guided Wave Radar | Distinct reflection at each interface (gas/oil, oil/water) |
| Displacer | Sized for interface density difference |
| Magnetostrictive | Multiple floats of different density for each layer |
FLOW INSTRUMENTATION
Flow Measurement, Metering, and Totalization
Flow measurement ranges from simple local indication to high-accuracy fiscal metering for custody transfer. The choice of technology depends on fluid properties, pipe size, accuracy requirement, and whether the application is for control, monitoring, or fiscal transfer.
Flow Instrumentation
Flow Meter Technologies
| Technology | Principle | Accuracy | Best For |
|---|---|---|---|
| Coriolis | Mass flow. Oscillating tubes. Phase shift proportional to mass flow | ±0.05% – 0.2% | Custody transfer, mass measurement, all fluids |
| Ultrasonic (Transit Time) | Upstream/downstream sonic transit time difference | ±0.15% – 0.5% | Large pipes, gas pipelines, non-intrusive (clamp-on) |
| Vortex | Shedding frequency of vortices behind a bluff body | ±0.5% – 1.0% | Steam, gas, clean liquids |
| Differential Pressure (Orifice) | Pressure drop across orifice plate. Square root relationship | ±1.0% – 2.0% | Proven technology, gas, steam, wide range of sizes |
| Turbine | Rotating turbine. RPM proportional to velocity | ±0.25% – 0.5% | Clean liquids and gas. Custody transfer (liquid) |
| Positive Displacement (PD) | Discrete volume chambers. Count revolutions | ±0.1% – 0.5% | High viscosity, small volumes, custody transfer |
| Thermal Mass | Heat dissipation proportional to mass flow | ±1.0% – 2.0% | Gas flow, low flow rates |
| Variable Area (Rotameter) | Float in tapered tube. Position proportional to flow | ±2.0% – 5.0% | Low cost, local indication, purge meters |
| Electromagnetic (Magmeter) | Faraday’s law. Voltage induced in conductive liquid | ±0.2% – 0.5% | Conductive liquids (water, slurry, acids). Not hydrocarbons |
| Wedge Meter | V-shaped restriction. For slurries and viscous fluids | ±1.0% – 3.0% | Produced water, drilling mud, oil sands |
Flow Meter Selection Guide
| Application | Recommended Technology |
|---|---|
| Custody transfer (oil) | Coriolis, Turbine, PD Meter |
| Custody transfer (gas) | Coriolis, Ultrasonic, Turbine |
| Fuel gas to burners/engines | Coriolis, Thermal Mass, Vortex |
| Steam (utility, process) | Vortex, DP (Orifice) |
| Produced water (conductive) | Electromagnetic (Magmeter) |
| Drilling mud / slurry | Wedge Meter, Coriolis (straight tube) |
| Chemical injection | Coriolis (low flow), PD Meter |
| Large-diameter gas pipeline | Ultrasonic (multi-path) |
| Flare gas (very low to very high) | Ultrasonic (flare-specific) |
| Compressor anti-surge | Vortex, DP |
| Local purge / seal flush | Variable Area (Rotameter) |
Flow Accessories
- Flow Straighteners: Remove swirl and velocity profile distortion upstream of meter
- Metering Runs: Pre-fabricated upstream/downstream pipe sections to API MPMS Chapter 14.3 for orifice meters
- Flow Computers: Dedicated electronic calculator for compensated flow calculation per AGA, API, ISO standards
- Meter Provers: In-situ calibration verification for liquid custody transfer meters
ANALYTICAL INSTRUMENTATION
Process Fluid Composition, Quality, and Emissions Monitoring
Analytical instruments provide real-time data on fluid composition, contaminant levels, and environmental emissions. They are essential for process optimization, product quality control, corrosion management, and regulatory compliance.
Analytical Instrumentation
Categories
| Category | Measures | Technologies |
|---|---|---|
| pH Measurement | Acidity/alkalinity of aqueous solutions | Glass electrode, differential electrode |
| Conductivity | Total dissolved solids (TDS) in water | Contacting (2-electrode, 4-electrode), Toroidal (inductive) |
| Dissolved Oxygen | Oxygen content in water (corrosion control) | Electrochemical (Clark cell), Optical (luminescence quenching) |
| Turbidity / Suspended Solids | Particulate load in water | Nephelometric (90° scatter), Backscatter, Attenuation |
| Oil-in-Water | Hydrocarbon contamination in produced water | UV Fluorescence, Light Scatter, IR Absorption |
| Water-in-Oil | Water content in crude oil (BS&W) | Capacitance, Microwave, Density |
| Gas Detection | Toxic and flammable gas for personnel safety | Catalytic bead (flammable), Electrochemical (toxic), Infrared (CO2/hydrocarbons), Open-path |
| Moisture / Dew Point | Water content in natural gas | Chilled Mirror, Capacitance (Al2O3 sensor), Quartz Crystal Microbalance |
| H2S Analyzer | Hydrogen sulfide in gas streams | Lead acetate tape (high accuracy), UV Absorption, Tunable Diode Laser |
| Gas Chromatograph | Full gas composition analysis (C1-C6+, CO2, N2, H2S) | Process GC with TCD/FID detectors. For custody transfer and process control |
| Stack Emissions (CEMS) | SO2, NOx, CO, CO2, O2, particulates from fired equipment | Extractive or In-situ analyzers |
Typical Applications in Oil & Gas
| Application | Required Analyzer |
|---|---|
| Produced water discharge compliance | Oil-in-Water |
| Crude oil sales quality (BS&W) | Water-in-Oil (Capacitance / Microwave) |
| Amine unit H2S slip monitoring | H2S Analyzer (Lead Acetate Tape) |
| Gas dehydration (TEG unit) | Moisture / Dew Point Analyzer |
| Cooling water corrosion control | pH, Conductivity |
| Boiler feedwater quality | pH, Conductivity, Dissolved Oxygen, Silica |
| Flare gas composition | Gas Chromatograph |
| Personnel safety (H2S, LEL, O2) | Fixed Gas Detectors |
| LNG liquefaction (CO2 freeze-out) | CO2 Analyzer, Moisture Analyzer |
INSTRUMENT VALVES & MANIFOLDS
Isolation, Venting, and Calibration Valves for Pressure Instruments
Instrument valves and manifolds are small-bore valves specifically designed for connecting pressure instruments (transmitters, gauges, switches) to the process. They enable safe isolation, venting, zero-check, and calibration without removing the instrument from service.
Instrument Valves & Manifolds
Valve Types
| Type | Function | Typical Standard |
|---|---|---|
| Ball Valve (Instrument) | Quarter-turn on/off isolation. Compact, quick acting | ASME B16.34, API 608 |
| Needle Valve | Fine throttling for vent, drain, and calibration | ASME B16.34 |
| Gate Valve (Instrument) | On/off isolation with minimal pressure drop cross seat | API 602 |
| Check Valve (Instrument) | Prevent reverse flow | ASME B16.34 |
| Bleed Valve | Small valve for venting trapped pressure or draining | ASME B16.34 |
Manifold Types
| Manifold | Ports | Function |
|---|---|---|
| 2-Way Manifold | Block + Block | Simple isolation for gauge pressure transmitters |
| 3-Way Manifold | Block + Equalize + Block | For differential pressure transmitters. Enables zero check |
| 5-Way Manifold | Block + Block + Equalize + Vent + Vent | Full-function DP transmitter manifold. Isolation, equalization, and venting/drain on both sides |
| Double Block & Bleed (DBB) | Block + Block + Bleed between | Positive isolation for calibration or removal. The industry standard for critical applications |
Materials:
- Body: 316 SS (most common), 304 SS, Carbon Steel, Duplex, Monel, Hastelloy
- Stem: 316 SS
- Seat/Packing: PTFE, Graphite, PEEK, Metal-to-Metal
Pressure Ratings: Typically 6,000 psi (414 bar) or 10,000 psi (690 bar)
Connections:
- Process End: 1/2″ NPT Female, Flanged, or Compression fitting
- Instrument End: 1/2″ NPT Female (standard), direct mount flange
INSTRUMENT TUBING & FITTINGS
Small-Bore Tubing and Leak-Free Compression Connections
Instrument tubing connects process impulse lines, air supply lines, and hydraulic control lines to instruments, valves, and actuators. The integrity of these connections is critical—a single leaking fitting in an ESD signal line can cause a spurious plant shutdown.
Instrument Tubing & Fittings
Tubing
| Material | Specification | Max Temperature | Application |
|---|---|---|---|
| 316/316L Stainless (Annealed) | ASTM A213 / A269 | Up to +538°C | General process, corrosive fluids |
| 316/316L Stainless (Hard-Drawn) | ASTM A213 / A269 | Up to +538°C | Higher pressure rating than annealed |
| 304/304L Stainless | ASTM A213 / A269 | Up to +538°C | Less corrosive environments |
| Duplex (UNS S31803) | ASTM A789 | Up to +300°C | High chlorides, seawater |
| Super Duplex (UNS S32750) | ASTM A790 | Up to +300°C | Extreme chlorides |
| Monel 400 | ASTM B165 | Up to +538°C | Seawater, HF acid |
| Inconel 600 / 625 | ASTM B167 / B444 | Up to +1,093°C | Sour HPHT, extreme corrosion |
| Copper (Soft/Annealed) | ASTM B75 | Up to +204°C | Pneumatic instrument air lines |
| 6Mo (UNS S31254) | ASTM A213 | Up to +400°C | High chloride, high temperature |
Sizes: 1/8″ to 2″ OD (common: 1/4″, 3/8″, 1/2″, 3/4″ OD)
Wall Thickness: Typically 0.035″, 0.049″, 0.065″ (0.89mm, 1.24mm, 1.65mm)
Fittings
Twin Ferrule (Two-Piece Ferrule) Compression Fittings
The industry standard for high-pressure, high-temperature, and high-vibration instrument connections. The front ferrule seals, the back ferrule grips and aligns.
- Most Common Brands: Swagelok, Parker CPI, Hy-Lok, Superlok, DK-Lok
- Interchangeability: Many manufacturers offer functionally interchangeable designs (though full traceability to one brand is preferred for critical service)
Single Ferrule Compression Fittings
Older design. Single ferrule performs both sealing and gripping. Simpler but less forgiving of installation errors than twin ferrule.
Other Fitting Types:
| Type | Description |
|---|---|
| NPT-to-Compression Adapter | Male/female NPT one side, compression other side |
| Bulkhead Fittings | Pass tubing through a panel or enclosure wall |
| Tube Plugs & Caps | Seal open fitting ports or tube ends |
| Tube Reducers | Connect different OD tubing sizes |
| Positionable Elbows & Tees | Elbow or tee body that can be oriented after tightening |
| Pipe Fittings (NPT) | Standard NPT elbows, tees, couplings for small-bore threaded connections |
JUNCTION BOXES & ENCLOSURES
Hazardous Area Electrical and Instrument Termination Housings
Junction boxes house electrical and instrument cable terminations, marshalling connections, and small control components. In oil and gas facilities, the vast majority are located in hazardous areas and must be certified to contain any internal explosion or prevent ignition of the external atmosphere.
Junction Boxes & Enclosures
Hazardous Area Protection Concepts
| Protection | Standard (IEC/ATEX) | Principle | Application |
|---|---|---|---|
| Ex d (Flameproof) | IEC 60079-1 | Contains explosion inside. Flame path cools escaping gases | High-power, frequent access, Zone 1 |
| Ex e (Increased Safety) | IEC 60079-7 | No arcing/sparking components inside. Prevents explosion | Terminations, Zone 1/2, lower cost than Ex d |
| Ex i (Intrinsic Safety) | IEC 60079-11 | Energy limited below ignition threshold | Instrument loops, Zone 0/1, low-power circuits |
| Ex n (Non-Sparking) | IEC 60079-15 | No ignition source in normal operation | Zone 2 only, lowest cost |
| Ex p (Purged/Pressurized) | IEC 60079-2 | Internal positive pressure prevents gas ingress | Large enclosures, analyser houses |
Enclosure Materials
| Material | Features | Best For |
|---|---|---|
| 316(L) Stainless Steel | Maximum corrosion resistance. Highest cost. Heavy | Offshore, coastal, chemical plants |
| 304 Stainless Steel | Good corrosion resistance. Moderate cost | General industrial, onshore |
| Copper-Free Aluminum | Lightweight, good corrosion resistance. Standard for onshore | Onshore oil and gas, refineries |
| GRP (Glass-Reinforced Polyester) | Non-metallic, no corrosion. Lightweight. Impact resistant | Highly corrosive atmospheres, coastal |
| Polycarbonate / ABS | Economical. Zone 2 / safe area only | Non-hazardous, indoor, shelters |
Typical Accessories
- Terminal Blocks: Screw clamp, spring clamp, fused, disconnect
- Cable Entry Plates: Removable plates for gland mounting
- Drain & Vent Plugs: Prevent condensation accumulation
- Earth Continuity Studs: Internal and external earth bonding
- Mounting Plates / DIN Rails: Internal component mounting
- Breathers / Desiccators: Prevent internal condensation in humid environments
- Window Kits: Visual inspection of internal components
CABLE GLANDS & ACCESSORIES
Cable Entry Sealing, Termination, and Earth Continuity
Cable glands provide the mechanical and environmental seal where cables enter junction boxes, instruments, motors, and panels. In hazardous areas, the gland is a critical safety component that must maintain the integrity of the enclosure protection concept.
Cable Glands & Accessories
Gland Types by Cable Type
| Cable Type | Gland Type |
|---|---|
| Steel Wire Armoured (SWA) | Armoured gland. Clamps armour for mechanical retention and earth continuity |
| Unarmoured (Non-Armoured) | Compression gland. Seals on outer sheath only |
| Braided / Screened | Braid grip gland. Terminates braid screen for EMC continuity |
| Instrument / Multipair | Compact gland for small-diameter, multiple-pair cables |
Hazardous Area Gland Selection
| Protection Concept | Gland Requirement |
|---|---|
| Ex d (Flameproof) | Must withstand explosion pressure. Must have flame path (sealing washer or compound). Certified as assembly with enclosure |
| Ex e (Increased Safety) | Must maintain IP rating. Impact tested |
| Ex i (Intrinsic Safety) | Standard industrial gland acceptable (system is safe by energy limitation) |
| Ex n (Non-Sparking) | IP-rated gland. No special flame path required |
Gland Material Options
| Material | Application |
|---|---|
| Brass (Nickel-Plated) | Standard for onshore, general industrial |
| 316 Stainless Steel | Offshore, corrosive, coastal |
| Aluminum | Lightweight, limited corrosive environments |
| GRP / Nylon | Non-metallic, non-corrosive, limited mechanical protection |
Gland Accessories
| Accessory | Function |
|---|---|
| Locknuts | Secure gland to enclosure |
| Earth Tags (Banjo) | Earth continuity connection for armoured glands |
| Shrouds (Gland Covers) | Weatherproofing over exposed gland and earth tag |
| Reducing Adaptors | Fit smaller gland into larger enclosure entry |
| Stopping Plugs | Blank unused enclosure entries. Certified to match enclosure |
| Sealing Compound & Kits | Pour-in two-part compound for Ex d vertical entries |
| Cable Ties & Cleats | Cable support and routing |
| Jubilee Clips | Secure shroud over gland |
Cable Gland Standards
| Standard | Scope |
|---|---|
| IEC 62444 | Cable glands for electrical installations |
| IEC 60079-0 / -1 / -7 | Hazardous area gland requirements (as part of equipment cert) |
| EN 50262 | Metric cable glands |
| BS 6121 | Mechanical cable glands (superseded) |