Ball valves
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61.1 n Functional features n CARLY advantages Ball valves VBCY n Applications • Secure and airtight fastening of refrigerating and air conditioning installation line. C o Products are compatible with HFCs, HCFCs, CFCs, as well as with their associated oils and additives. Products are designed for use of non-hazardous refrigerants from group 2 of PED 97/23/EC. o Product classification in CE categories is performed using the PED 97/23/EC table, corresponding to a nominal diameter-based selection. o Integral flow with no pressure drop, with slight diameter restrictions for some models (refer to the technical features table on pages 61.2 and 61.3). o Bi-flow ball valves that can be installed in all positions. o Stainless steel balls, with a hole for pressure equalization. o 11 models with die-cast brass body (from 1/4” to 7/8” and from 6 to 22 mm). o 10 models with lined steel body (from 1” 1/8 to 3” 1/8 and from 28 to 80 mm) and with anticorrosive protection varnish. o Quick quarter turn opening and closing, with built-in rotation limiter. o Reinforced air-tightness of the inspection rod with two Neoprene® O-rings for the brass valves and a PTFE gland nut for the steel valves. o Internal air-tightness performed by two PTFE double reach seats, set in the centre of the valve body. o Flat area at the base of the control connection, that allows full safety loosening of the protection plug. o Protection plug with PTFE gasket and a safety orifice to prevent accidental ejection. o GOST certified products. At the heart of refrigeration technology 04/08 Non-binding documents

61.2 n Technical features of VBCY brass ball valves * The ball valves can be mounted on the suction, discharge, liquid and oil lines. * The brazing of valves can be performed without removal. * During the brazing operation, the valves must remain in the open position. * In order to not deteriorate seat air-tightness, the inspection rod’s intermediate positions, between opening and full closing, are forbidden. * Slightly re-tighten the steel valves gland nut during each maintenance operation. * The recommended tightening torques of the gland nut gasket are: VBCY 9 S/MMS: 16 N.m VBCY 11 and...

61.4 Ball valves VBCY n Technical features C 04/08 Non-binding documents At the heart of refrigeration technology (1) The working pressure is limited to the PS BT value when working temperature is lower than or equal to TS BT value. (2) Classification by diameter, according to PED 97/23/EC (refer to chapter 0 page 7). n Spare parts CARLY references CARLY references PS (bar) PS BT (bar) TS maxi (°C) TS mini (°C) TS BT (°C) CE Category (2) DN (inch) DN (mm) Maximal working pressure Working pressure (1) Maximal working temperature Minimal working temperature Working temperature (1) Nominal...