Designing and localizing various NTC sensors, flow switches, and workshop tools with cutting‑edge technology and a 2‑year unconditional replacement warranty
Replacement Warranty
Unconditional Replacement
Active Agencies
Across the Country
Technical Expertise
in Localization & Manufacturing of Sensitive Components
Quality Guarantee
Across All Production Stages
Ouja Sanat Tadbir Company was established in the Abbasabad Industrial Town of Tehran, built upon the technical expertise of Iranian engineers and outfitted with advanced industrial machinery. With a strategic focus on the specialized production of NTC thermal sensors, hydraulic flow switches, flowmeters, pressure switches, and specialized workshop tools for wall-hung boilers, this industrial enterprise has played a pivotal role in the localization and supply of premium-quality components for the nation's HVAC market. All Ouja Sanat products undergo rigorous Quality Control (QC) inspections, including intensive pressure and thermal testing, prior to market release. They are offered with an unconditional 2-year factory replacement warranty, ensuring unmatched reliability.
This product is used for various Iranian and imported wall-hung boilers whose flow switch has malfunctioned and needs replacement. Its advantages include ease of installation and cost-effectiveness. Each unit comes with separate packaging. Inside each package, there is an installation kit including 2 socket-ended connector wires, varnish (insulating coating), and a 1/2" mesh strainer washer.
The clip is made of stainless steel. This product is compatible with all boilers that use the socket-type model.
10 kΩ The clip is made of stainless steel. This product is compatible with all boilers that use the socket-type model.
This product is used for various Iranian and imported wall-hung boilers whose hot water circuit is activated by a two-way flow switch. Each unit comes with separate packaging.
The three-way outlet size is 1/4 inch. Each unit comes with separate packaging.
The clip is made of stainless steel. This product is compatible with all boilers that use the plug-type model.
OJAA NTC Surface-Mount Plug-Type Sensor G12. The clip is made of stainless steel. This product is compatible with all boilers that use the plug-type model.
Key advantages and standards that distinguish us in the industry
Unconditional Replacement Warranty
Direct Factory Supply
100% Factory Inspection
Specialized in Boiler Parts
Stable & Fast Delivery
Support Across the Country
Latest guides for testing and troubleshooting boiler parts
The boiler filling loop valve connects the cold mains to the heating circuit. This guide explores the causes of an internal leak, rising pressure when off, and safe replacement procedures.
A boiler expansion vessel absorbs heating water volume changes. This guide explores rubber diaphragm failures, constant pressure drops, and methods for recharging vessel air pressure.
A boiler 3-bar safety relief valve is a mechanical safety device that prevents heat exchanger explosions. This guide explores the causes of a boiler PRV leaking, expansion vessel failure, and steps for changing the component.
To apply to become an OJAA sales agent or request direct factory supply for your store, complete the form below. OJAA Industrial Group’s sales team will review your application and contact you; submission does not mean approval.
