Special Samplers
Terminal ASTM D1657, Dual Phase & Custom Engineered Sampling
Spirare Energy's Special Samplers are bespoke, application-engineered systems designed to solve complex sampling challenges that cannot be addressed by conventional grab samplers. Engineered for extreme process conditions, mixed-phase media, and strict international testing standards, these systems deliver verified sample integrity, zero fugitive emissions, and operator safety.
Our signature custom solutions include Terminal & Tank Farm Samplers designed in strict compliance with ASTM D1657 for in-situ density, color, viscosity, and temperature measurement of light hydrocarbons; Dual Phase Sampling Systems equipped with integrated Knock Out Pots (KOP) to separate mixed liquid-gas streams into dedicated collection vessels; and extreme-service systems such as Hydrofluoric (HF) Acid Alkylation Samplers and Flare Header Sub-Atmospheric Samplers.
Every Special Sampler skid is custom designed with premium metallurgy (SS 316L, Monel 400, Hastelloy C-276, Inconel 625), automated pneumatic actuation, thermal heating/cooling jackets, and full containment cabinets to match your exact plant instrumentation and safety specifications.
Special Sampler Specifications & Systems
Explore complete technical specifications, available options, and specialized configurations for Terminal ASTM D1657 sampling, Dual Phase Knock Out Pot systems, and severe service applications.
Special Sampler Capabilities
Custom EngineeringTesting & Industry Standards
ASTM D1657, API 2540, ISO 3993
Designed for standard test methods for density, relative density, and visual quality of light hydrocarbons under pressure.
Dual Phase Media Handling
Mixed Liquid & Gas Separation
Integrated Knock Out Pot (KOP) cyclone chamber cleanly separates vapor and liquid fractions into dedicated collection vessels.
Material of Construction (MOC)
SS 316 / Monel 400 / Hastelloy
Wetted metallurgy customized for process media: SS 316L, Monel 400 (HF acid), Hastelloy C-276, and PTFE-lined bodies.
Visual Quality & Hydrometer Tubes
High-Pressure Graduated Columns
Transparent high-pressure visual hydrometer cylinders with protective shields for in-situ density, color, and temperature observation.
Thermal Conditioning Options
Steam / Electrical Tracing & Coolers
Integrated steam heating jackets, electrical heating blankets, or cooling heat exchangers for temperature-critical samples.
Valve Operation & Safety
Spring Return / Geared Interlocks
Spring-return deadman handles, geared sequencing valves, and explosion-proof automated pneumatic actuation options.
Options Available & Custom Accessories
ASTM D1657 Hydrometer Assembly
Triple-column graduated pressure hydrometer assembly with integral thermo-hydrometer and protective safety guard.
Knock Out Pot (KOP) Phase Separator
Integrated cyclone separator pot with liquid level gauge glass, high-pressure gas cylinder, and septum bottle takeoff.
Secondary Containment Enclosures
Heavy-duty SS 304/316 weather-proof cabinet with optical leak detection, door interlock, and scrubber ducting.
Heavy-Duty Structural Skid Frame
Freestanding painted or galvanized structural steel skid frame engineered for terminal tank farms and offshore decks.
Automatic Sampling Actuation
PLC-controlled pneumatic actuators with sequence controller for automated multi-step sampling and flush cycles.
Severe Corrosion Metallurgy (Monel/Hastelloy)
Solid Monel 400 for HF acid service, Hastelloy C-276 for wet chlorine, or PTFE-lined valves for aggressive acids.
Special Sampling Systems (SP1 – SP4)
Select a specialized configuration engineered for terminal density testing, multiphase gas-liquid separation, HF acid alkylation, or flare recovery.
Terminal & Tank Farm Sampling System (ASTM D1657)
Engineered in strict compliance with ASTM D1657 for tank farms and loading terminals. Features 3 graduated visual hydrometer cylinders allowing direct observation and measurement of density, color, viscosity, and temperature under process pressure.
Custom engineered skids available on request
| Model | System Type & Description | Purging / Operation | Action |
|---|---|---|---|
| SP1 | Terminal & Tank Farm Sampling System (ASTM D1657) Engineered in strict compliance with ASTM D1657 for tank farms and loading terminals. Features 3 graduated visual hydrometer cylinders allowing direct observation and measurement of density, color, viscosity, and temperature under process pressure. | Pressure Hydrometer Density & Quality Testing Skid Closed Loop Process Return Flushing with Flare Depressurization | |
| SP2 | Dual Phase Multiphase Sampling System Equipped with an integrated Knock Out Pot (KOP) separator that splits mixed gas-liquid process fluids into dedicated sample cylinders (gas phase) and septum glass bottles (liquid phase) with zero cross-contamination. | Knock Out Pot (KOP) Liquid & Gas Phase Splitter Dual Circuit Inert N2 Purging + Demister Chamber Flush | |
| SP3 | HF (Hydrofluoric Acid) Alkylation Special Sampler Constructed entirely in Monel 400 / Hastelloy C-276 with secondary containment, acid-neutralizing wash ports, and multi-port geared interlocks designed specifically for severe Hydrofluoric acid service. | Severe Acid Service Closed-Loop Sampler Neutralizing Alkaline Flush + High-Pressure Inert Gas Purge | |
| SP4 | Flare Header & Sub-Atmospheric Gas Sampler Utilizes motive Nitrogen-driven supersonic venturi eductors to generate deep vacuum suction, extracting representative gas samples from sub-atmospheric flare headers and low-pressure knockout vessels. | Venturi Eductor High-Velocity Suction Sampler Supersonic N2 Venturi Suction + Flare Return Sweep |
PROCESS APPLICATION CONFIGURATOR
Select your desired application to configure the ideal engineering pathway and receive a tailored quotation.