Specialty Valves

A-T Controls’ NS Series floating ball valves and NS series butterfly valves are certified to meet the requirements of NSF 61 (Drinking Water System Components- Health Affects) and NSF 372 (Drinking Water System Components- Lead Content). This means that NS Series valves are certified for use (by Underwriters Laboratory) in water treatment, water purification, potable water, and water distribution systems and conforms with North American lead content requirements for “lead-free” plumbing.

These valves hold CRNs (Canadian Registration Numbers). Use the search bar on our site to access the CRN certificates; search “CRN”.

NS butterfly valves are available in sizes 2” – 24”, and have Class 150 wafer or lug flanges. (NS, NSP)

NS ball valves are available with threaded, socket weld, butt weld, Class 150, and Class 300 end connections. (NS20, NS22, NS55, NS90-F1, NSD9-F1, NSD9-F3)

Water Treatment | Potable Water Service | Reverse Osmosis | Desalination

Triac C8/CR Series 3-Piece Manual Ball Valves feature a direct mount automation pad. The high quality investment castings feature a fully machined bore. The superior live-loaded packing system is accomplished with Belleville washers, “V” ring packing and a unique primary pyramidal stem seal. This advanced sealing system provides for protection against stem leaks experienced by ordinary ball valves.

CSA 3.16 is a standard that certifies 1/4” – 8” valves with welded, flanged, or threaded ends for use in natural gas, manufactured gas, and liquefied petroleum gases that are suitable for use between -76°F to 356°F.
The certified pressure range for these valves is 0–125 psig, and the maximum permissible pressure of valves installed in these applications is 187 psig.

Each A-T Controls CSA 3.16 certified valve has TFM™-1600 seats installed, is production tested (seat leak tests in both directions and shell test), tagged with the date the valve was tested and CSA logo, and operation tested. The valves have been certified for service temperatures of -20°F to 149°F. A-T Controls certified 3.16:21 floating ball valves include our F88/F88C Series (1/4” – 3”), F90/F90C Series, and 6” Series 93/93C valves. A-T Controls certified High Performance Butterfly Valves include 2”, 3”, 4”, 6” and 8” Series P1S valves.

Painless Stainless automated packages include a stainless steel ball valve mounted to a TRIAC® Series S2 Stainless Steel Actuator with epoxy coated high tensile strength springs.

Triac® TB Series Tank Bottom Valve features the 316SST Series 55 valve body. The 3-piece design allows for easy maintenance and assembly. The weld-in-place tank pad is of 316L SST construction and bolts directly to the valve’s center body. It can be fitted with a threaded, socket weld, butt weld or ANSI Class 150 flanged mating end.

In March of 2007 A-T Controls received TA-Luft Low Emission certification for broad range of valves with a patented “Pyramidal Stem Seal” system. At that time fourteen different TRIAC series valves with the live-loaded packing system passed the TA-Luft standard that was established by the German TUV agency (Technischer Uberwachungs-Verein). Considered the world’s most stringent standard on valve emissions, TU-Luft testing requires less than 1 ppm leakage through the valve stem.

Fugitive valve emissions are a major environmental and economic issue for process industries. TRIAC valves can reduce fugitive emissions and lost product by 99% or more compared to legacy control valves. A-T is excited to offer such a range of valve choices to help industries in their drives to reduce emissions.

The TRIAC TA-Luft certified valves employ a unique live-loaded pyramidal stem packing system. This features a patented 45° pyramidal stem and stem seal with Belleville washers and PTFE chevron style stem packing, protecting against stem leaks experienced with ordinary ball valves.

The TRIAC valves also feature a patented automation pad that allows direct mounting of ISO5211-compliant actuators to eliminate the cost and fabrication of special couplings or brackets.

A-T Control’s product literature identifies each valve model carrying the TA-Luft certification with a green logo.