ObtainSurplus.com

09/04/2026

Siemens SQS859.00 Rotary Actuator with VXG44.20-6.3 3-Way Valve

Used 24VAC Rotary Actuator and 3-Way Control Valve for Hydronic HVAC

One in stock: https://obtainsurplus.com/automation-controls/siemens-sqs859-00-rotary-actuator-with-vxg44-20-6-3-3-way-valve/

Carefully packed and shipped the same business day from our Idaho warehouse. Online since 1999. Honest equipment and straightforward service.

Product Condition:
Used. Removed from service in working condition. Shows normal signs of prior installation and use consistent with commercial HVAC environments. Visual inspection only; no bench testing performed.

Product Overview:
Siemens SQS859.00 rotary electromotoric actuator paired with an installed Siemens VXG44.20-6.3 three-way control valve. This actuator-and-valve assembly is designed for controlled mixing or diverting of fluid flow in hydronic heating and cooling systems. Operating on 24VAC, it integrates into standard building automation and HVAC control schemes. Assemblies like this are commonly specified where repeatable valve positioning and predictable system response are required.

Key Features:
* Siemens SQS859.00 rotary electromotoric actuator
* Installed Siemens VXG44.20-6.3 three-way control valve
* 24VAC operating voltage
* Designed for rotary valve actuation
* Supports mixing or diverting flow configurations
* Supplied as a complete actuator and valve assembly
* Common form factor for building automation systems

Applications:
* Hydronic heating system control
* Chilled water HVAC distribution
* Mixing valve installations
* Diverting valve applications
* Building automation system integration
* Maintenance replacement in Siemens-equipped systems

Obtainium | Science. Surplus. Delivered.
obtainsurplus.com

09/03/2026

Siemens S7-300 CPU Module 6ES7312-5BE03-0AB0, Used

One in stock: https://obtainsurplus.com/automation-controls/siemens-s7-300-cpu-module-6es7312-5be03-0ab0-used/

Product Condition:
Used, clean, and in excellent condition.

Product Overview:
The Siemens S7-300 CPU module 6ES7312-5BE03-0AB0 is a compact, modular PLC controller designed for automation tasks in industrial environments.

Key Features:
* Model: 6ES7312-5BE03-0AB0
* CPU 312 with integrated MPI interface
* Memory: 64 KB work memory
* Power supply: 24V DC
* Communication: MPI, PROFIBUS DP (via CP)
* Mounting: DIN rail

Applications:
* Industrial automation systems
* Machine control
* Process monitoring
* Factory automation projects

Obtainium | Science. Surplus. Delivered.
obtainsurplus.com

09/03/2026

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Obtainium | Science. Surplus. Delivered.

09/01/2026

obtainsurplus.com | Science. Surplus. Delivered.

08/31/2026

RSG Emergency Vehicle Siren 12VDC, Tone-Selectable - New Old Stock

Shop Now: https://obtainsurplus.com/rsg-emergency-vehicle-siren-12vdc-tone-selectable/

Product Condition:
New and unused. Clean, excellent condition. Does not include mounting hardware.

Key Features:
12 VDC operation for vehicle integration
Simple 3-wire connection: Red = +12VDC, Black = Ground, White = Momentary Ground (tone change)
Selectable siren tones
RSG Engineering Ltd. a legacy UK-based company recognized for high-reliability emergency service equipment.
Free USA shipping included
Discount: Save $5 per unit when ordering 2 or more

Applications:
Emergency and service vehicle retrofits
DIY alarm and warning systems
Security alert setups
Electronic hobby and surplus projects

Obtainium | Science. Surplus. Delivered.

Save $5/unit on 2+ orders. Ships fast from USA.

08/30/2026

Land Mobile Radio Service Programming Interface for Shop and Field Use

One in stock: https://obtainsurplus.com/radio-telecom-equipment/ge-ericsson-tq3370-radio-programming-interface-b000012426011c26storeox-for-lmr-service/

Carefully packed and shipped same business day from our Idaho warehouse. Online since 1999. Honest equipment and straightforward service.

Product Condition:
Used. Fair cosmetic condition with visible scuffs, scratches, and scrapes consistent with normal use and storage. The unit is untested and offered based on visual inspection only. No power adapter or power supply is included.

Product Overview:
GE Ericsson TQ3370 radio programming interface box designed to connect compatible land mobile radios to programming and alignment equipment. Commonly used in service and maintenance workflows, this interface supports configuration tasks required for GE and Ericsson radio platforms. Hardware from this era was built for repeated bench use in radio shops where durability and serviceability were essential. This unit remains relevant for technicians maintaining installed fleets and long-service radio systems.

Obtainium | Science. Surplus. Delivered.

08/29/2026

obtainsurplus.com | Science. Surplus. Delivered.

08/29/2026

Thomas 107 Series Oil-Less Diaphragm Pump - 12VDC, 1.4 CFM, Vacuum and Pressure, Tested

One in stock: https://obtainsurplus.com/107cdc20-898-diaphragm-vacuum-pump-12v-1-4-cfm-thomas/

Ships same business day from Idaho. Packed carefully.

Condition:
Single unit available. Used, good to fair cosmetic condition with visible signs of use. One screw missing from the pump head and one screw missing from the motor cover. Fully tested and confirmed operational under 12VDC load. Maximum vacuum measured 20.5 inHg on an external test gauge; the installed gauge reads 18.5 inHg. To power the unit, connect +12VDC to the red wire and -12VDC to the mounts. Replacement hardware is recommended for full mechanical security before integration.

Product Overview:
Thomas 107 Series, model 107CDC20-898 - an oil-less diaphragm pump rated for continuous 12VDC operation. Capable of generating vacuum or positive pressure depending on port orientation. The oil-less diaphragm design keeps the air path free of lubricants. Port size is 1/8" NPT on both inlet and outlet. The -898 suffix indicates an OEM configuration variant; core performance specs match the standard 107CDC20. Commonly integrated into mobile, battery-powered, and OEM systems where compact size and DC compatibility are critical.

Key Features:
Voltage: 12V DC
Flow rate: 1.4 CFM free air
Max vacuum: 22.9 inHg (rated) - 20.5 inHg confirmed on this unit by external gauge
Max pressure: 35 PSI
Current draw: 9.5 A full load
Port size: 1/8" NPT inlet and outlet
Motor: 1/10 HP permanent magnet
Duty cycle: Continuous
Oil-less diaphragm design - clean air path
Functions as vacuum pump or compressor depending on port orientation
Power connection: +12VDC to red wire, -12VDC to mounts

Applications:
Brake booster vacuum supply for EV conversions and large-cam engines
Air suspension systems on RVs and coach buses
Portable laboratory vacuum or air sampling equipment
Medical and ambulance suction systems
OEM pneumatic door and accessory systems

Obtainium | Science. Surplus. Delivered.

Oil-less diaphragm pump, 1/10 HP, 35 PSI max, 9.5 A draw, 1/8" NPT ports. Tested 20.5 inHg. Brake booster, EV conversion, lab vacuum. Used.

08/27/2026

Obtainium | Science. Surplus. Delivered.

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