About Us

Established in 1986, A.S. Controls Pvt. Ltd. has steadily built a legacy of excellence in the field of electronics and industrial refrigeration. With over three decades of experience, we stand today as one of India’s prominent manufacturers, suppliers, and exporters of high-performance electronic controllers and refrigeration control systems. All our offerings are delivered under the trusted brand names Sub-Zero and Castle, each of which has become synonymous with reliability, durability, and innovation in its domain. Under the Sub-Zero brand, we have developed an expansive portfolio of electronics control solutions tailored to meet the dynamic needs of HVAC&R, cold chain, and industrial automation sectors. Our range includes Temperature, Humidity, and Pressure Controllers and Indicators, along with sophisticated Process Temperature Controllers, Scanners, Data Loggers, Deep Freezer Controllers, Cold Room and Chiller Controllers, Freezer Controllers, and Line Voltage Monitors. These products are engineered using premium-grade raw materials and the latest in embedded and control technologies, ensuring precision, stability, and long-term performance in demanding environments. Each product undergoes rigorous quality checks and performance validation, in line with international standards, before it reaches our customers. Complementing our electronic control solutions is the Castle brand, under which we manufacture a comprehensive range of Ammonia and Freon-based Valves and Controls. Designed specifically for industrial refrigeration applications, this line includes Ammonia Liquid Level Indicators and Controllers, Ammonia Leak Detectors, Water Flow Switches, and essential accessories for cold room doors. The Castle range also features a variety of industrial-grade valves including Ball Valves, Globe Valves, Hand Shut Off Valves, Non-Return Valves (Check Valves), and Expansion Valves. Each component is crafted to ensure superior mechanical reliability, leak-proof performance, and long service life, making them ideal for large-scale installations in cold storage, food processing, dairy, and pharmaceutical environments. At PVR Controls (previously known as A.S. Controls), quality and innovation are not just values — they are foundational principles. Our manufacturing operations are driven by a culture of continuous improvement and are supported by an experienced engineering team, advanced production infrastructure, and stringent in-house testing protocols. Every product reflects our commitment to technical excellence and our focus on addressing the real-world challenges faced by our clients. Today, with a growing footprint in domestic and international markets, PVR Controls remains dedicated to delivering future-ready solutions that power critical refrigeration and automation systems. As we look ahead, we remain anchored in our mission to advance industrial performance through intelligent design, sustainable quality, and customer-centric innovation — values that have defined us for nearly four decades and will continue to guide us into the future.+ Read More

Nature of Business

Manufacturer

Legal Status of Firm

Partnership

Annual Turnover

25 - 100 Cr

GST Registration Date

Jul'17

Total Number of Employees

101 to 500 People

Import Export Code (IEC)

031*****77

GST Number

27**********1ZE

IndiaMART Certification

Trust Seal Verified

Our Products

Product Video

Sub Zero SZ-7081 Temperature Controller

Sub Zero SZ-7529P Temperature Controller

PID Temperature Controller

Watch more

Deals in HSN Code

HSN CodeHSN Description

84818050Taps, cocks, valves and similar appliances for pipes, boiler shells, tanks, vats or the like, including pressure-reducing valves and thermostatically controlled valves - other appliances: expansion valves and solenoid valves for refrigerating and air conditioning appliances and machinery

85371000Boards, panels, consoles, desks, cabinets and other bases, equipped with two or more apparatus of heading 8535 or 8536, for electric control or the distribution of electricity, including those incorporating instruments or apparatus of chapter 90, and numerical control apparatus, other than switching apparatus of heading 8517 for a voltage not exceeding 1,000 v

90261090Instruments and apparatus for measuring or checking the flow, level, pressure or other variables of liquids or gases (for example, flow meters, level gauges, manometers, heat meters), excluding instruments and apparatus of heading 9014, 9015, 9028 or 9032 - for measuring or checking the flow or level of liquids: other

90328910Automatic regulating or controlling instruments and apparatus - other instruments and apparatus: - other: electronic automatic regulators

84818030Taps, cocks, valves and similar appliances for pipes, boiler shells, tanks, vats or the like, including pressure-reducing valves and thermostatically controlled valves - other appliances: industrial valves (excluding pressure-reducing valves, and thermostatically controlled valves)

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