2-Way Terminal Unit Zone Valves Specification and Installation Instructions 2way-female threads on both ports-T2(ABC)_EB1_201201 Page | 1 Series T2AxxxxEB1: 2-way, 1/2", threaded unions, NPT T2BxxxxEB1: 2-way, 3/4", threaded unions, NPT T2CxxxxEB1: 2-way, 1", threaded unions, NPT Features • 2-way valves available in 1/2”, 3/4” and 1” • Small dimensions allow for easier installation • Low Zinc anti-dezincification bronze • Field replaceable and interchangeable internal cartridges with a wide selection of Cv (Kv) values • 1.5 million cycles (3 million repositions) • Packings with burnished mirror finish stainless steel stems • Micro machined accurate parabolic, characterized plugs • Available with NPT threads • Made in Canada Female Threaded Ports In & Out EB: Balanced Models Cv Kv ½" NPT ¾" NPT 1" NPT 0.5 0.43 T2A0005EB1 - - 1.0 0.86 T2A0010EB1 T2B0010EB1 - 1.5 1.30 T2A0015EB1 T2B0015EB1 - 2.0 1.72 T2A0020EB1 T2B0020EB1 - 2.5 2.15 T2A0025EB1 T2B0025EB1 - 3.0 2.58 T2A0030EB1 T2B0030EB1 - 3.5 3.00 T2A0035EB1 T2B0035EB1 - 4.5 3.87 - T2B0045EB1 - 6.0 5.16 - - T2C0060EB1 6.4 5.50 - - T2C0064EB1 8.0 6.90 - - T2C0080EB1 9.0 7.75 - - T2C0090EB1 Note: Cv/Kv values indicated with a are linear flow. All other cartridges are Equal % flow. Technical Data Specification All Models Actuator Compatibility All Neptronic® VM and VT series actuators Connection Female Threaded Ports In & Out Thread Type NPT Maximum test pressure 1200 PSI [8275 kPa] Maximum Close-off pressure 100 PSI [690 kPa] Differential pressure 50 PSI [345 kPa] can be exceeded, but with possible water noise Nominal Stroke 5/32” (4mm) Stem position Up = valve open (default position); Down = valve closed Rangeability 100:1 Media Hot water (rated @ 250°F [120°C]) – Chilled water – Water with antifreeze agent (glycol) max. 50% Pressure class ANSI Class 250 (PN25) Material Body Low zinc bronze, alloy C84400 Contains less than 10% Zinc, which prevents dezincification. Dezincification can cause pores to form in the alloy and results in leakage over time. Stem “Mirror – maker” burnished stainless steel Internal Cartridge Seat: integral bronze; Disc./plunger: EPDM/brass; Spring: stainless steel; Packing: double EPDM Country of fabrication Made in Canada 2-Way Terminal Unit Zone Valves Specification and Installation Instructions www.neptronic.com Page | 2 Dimensions & Weight Size & Weight ½" ¾" 1" A 2.29" (58.17mm) 2.70" (68.58mm) 3.88" (98.50mm) B 1.60" (40.64mm) 2.20" (55.88mm) 2.84" (71.10mm) C 1.09" (27.69mm) 1.09" (27.69mm) 1.80" (45.70mm) Weight 8.5oz (240g) 12.7oz (360g) 33.2oz (940g) Mechanical Installation Valve Body Install the valve body on the supply side or return side of the coil according to the direction indicated on the valve's body cavity. The terminal unit bodies are normally set to OPEN. The open and close status is dependent on the position of the stem. Valve installed on the supply side of the coil Valve installed on the return side of the coil Stem Position The position of the stem indicates the status of the valve. If the stem is up, it indicates that the valve is open. If the stem is down, it indicates that the valve is closed. If the terminal unit body is used with direct acting actuators, the valve functions as a normally open valve assembly. If the terminal unit body is used with reverse acting actuators, the valve functions as a normally closed valve assembly. Stem Up = Valve Open Stem Down = Valve Close Note: Since the valves are normally open by default, ensure that the Neptronic VM and VT actuator’s DIP switches are set to Normally Open. Orientation maximum 85 º Caution: Risk of leakage. Do not install valve at an angle of more than 85º from a horizontal position. Caution: Risk of damage to the valve. Install a strainer upstream from the valve to prevent damage. EB Type Cartridge All valve body assemblies are service and maintenance free. They possess interchangeable internals such as replaceable cartridges for specific applications with variations of parabolic or linear characterized globe plungers. The Cv (Kv) values can be changed by changing just the cartridge. It does not require removing the valve from the line. The capability of close-off pressure increases with an increase in the actual differential pressure across the valve. The higher the ΔP, the higher is the close-off pressure. Theoretically, the close-off pressure is known to increase to the limit of the valve body rating. 85°Next >