LS Series Liquid Samplers
Manual Sampling Systems
Spirare Energy offers high-precision LS Series Liquid Samplers engineered for closed-loop representative sampling of liquids across refining, chemical, and petrochemical industries. Designed to handle hazardous, volatile, or toxic liquids safely, the LS Series eliminates atmospheric emissions and protects plant operators from volatile organic compound (VOC) exposure.
Operating at media pressures below 8 Bar.g (115 psig) and vapor pressures below 0.7 Bar.g (10 psig), the LS Series utilizes a sealed septum bottle with dual-needle dispensing to maintain full containment before, during, and after sample extraction. Standard wetted parts are manufactured in SS 316/316L with exotic alloy options available for corrosive chemical services.
Available in seven engineered configurations (LS1 through LS7) ranging from basic on/off sampling to advanced fast-loop bypass systems with inert gas needle purging and reverse flow line back-purging, Spirare Energy delivers custom sampling solutions configured to meet strict international process safety standards.
Sampler Specifications & Models
Explore complete technical specifications, available options, and the seven specialized LS Series model configurations engineered for closed-loop representative sampling.
Sampler Specifications
Design LimitsOperating Pressure
Below 8 Bar.g (115 psig)
Suitable for low to medium pressure process media with full pressure containment.
Vapor Pressure
Below 0.7 Bar.g (10 psig)
Engineered for liquids with low vapor pressure.
Material of Construction (MOC)
SS 316, SS 316/316L
Standard 316 stainless steel. Exotic options: Hastelloy C-276, Monel 400, Duplex 2205, Super Duplex, Inconel 625.
Sleeve & Retainer Assembly
100 CC, 250 CC, 500 CC
Heavy-duty protective sleeve with viewing slot and secure bottle retainer assembly. Custom volumes on request.
Process Connections
1/4" OD / NPT (Standard)
Compression tube fittings or female NPT threads. Options: 3/4", 1/2", Flanged ANSI Class 150/300/600. Larger sizes are also available on request.
Sample Bottle Sizes & Types
100 cc, 150 cc, 250 cc, 500 cc, 1000 cc etc.
Standard clear glass bottles, Schott Duran / Borosil borosilicate laboratory bottles with septum caps.
Options Available & Custom Accessories
Mounting Plate & Enclosure Cabinets
SS 304/316 mounting plate, weather-proof IP protective cabinet with lockable door and acrylic glass window (Optional).
Spring Return Deadman Handle
Fail-safe spring return handle that automatically snaps valve to closed position when released by the operator.
Floor / Pipe Stand Assembly
2" NB robust stanchion pipe mount or MS / carbon steel (galvanized/powder-coated) or SS 304/316 mounting stand.
Automatic Sampling Options
Pneumatic or electric actuator with solenoid valve, push-button station, or PLC-controlled timed sampling cycles.
Nitrogen / Solvent Purge Systems
Integrated inert gas needle purging system with pressure regulators, check valves, and needle valves.
Thermal Heating & Cooling Jackets
Steam tracing, electrical heating jackets, or sample coolers for high-temperature or freezing-prone process fluids.
Liquid Sampling Systems (LS1 – LS7)
Liquid Sampling Center Type
Direct closed-loop representative sampling with manual 2-way / 3-way spring return deadman handle for safe, basic on/off grab sample collection.
Custom engineered skids available on request
| Model | System Type & Description | Purging / Operation | Action |
|---|---|---|---|
| LS1 | Liquid Sampling Center Type Direct closed-loop representative sampling with manual 2-way / 3-way spring return deadman handle for safe, basic on/off grab sample collection. | Standard Center Grab Sampling Standard Vent / Flare Routing | |
| LS2 | Liquid Sampling Line Purging Type Includes an upstream fast-loop bypass line to flush stagnant liquid prior to sample collection, guaranteeing 100% fresh, representative media. | Process Line Bypass Purge Continuous or Intermittent Line Bypass Purge | |
| LS3 | Liquid Sampling Back Purge Type Features back-purging capability to reverse flush residual media backward into the process line after collection. | Reverse Flow Back-Purge Reverse Process / Inert Header Back-Purge | |
| LS4 | Liquid Sampling Needle Purge Type Equipped with dedicated Nitrogen / inert gas purging directly through the dispensing and vent needles to eliminate toxic droplets and needle clogging. | Inert Gas Needle Purging Dedicated N2 / Inert Gas Needle Purge | |
| LS5 | Liquid Sampling Back and Needle Purge Type High-integrity dual purge system combining comprehensive process line back-purging with direct needle inert gas purging for maximum safety. | Dual Back & Needle Purge Simultaneous Line Back-Purge + N2 Needle Purge | |
| LS6 | Liquid Sampling Continuous System and Needle Purge Maintains continuous fast-loop circulation across the sampling head combined with needle purge for instantaneous sample capture without process deadleg. | Continuous Fast-Loop + Needle Purge Continuous Bypass Loop + Automated Needle Purge | |
| LS7 | In-Line Needle Purge Type Compact direct in-line process pipe mounting featuring an integrated needle purge mechanism for streamlined sampling with minimal installation footprint. | Direct In-Line Flow Sampling Direct In-Line Inert Gas Flushing |
PROCESS APPLICATION CONFIGURATOR
Select your desired application to configure the ideal engineering pathway and receive a tailored quotation.