E-Z Valve. Thermostatic valves with radiator connection systems For single and two-pipe heating systems

Transcription

1 E-Z Valve Thermostatic valves with radiator connection systems For single and two-pipe heating systems

2 IMI HEIMEIER / Thermostatic heads and Radiator valves / E-Z Valve E-Z Valve E-Z Valve with immersion pipe is connected to radiators with a lower one-point connection, e.g. bathroom radiators, column radiators, etc.. Centre-to-centre distance of pipe connections mm. Key features > > Body made of nickel-plated corrosion-free gunmetal > > Return shut-off > > Two-pipe design with presetting > > For all HEIMEIER thermostatic heads and actuators Technical description E-Z Valve, nickel-plated with corrosionresistant gunmetal, immersion pipe, for radiators with a lower singlepoint connection. Available in angle and straight versions for both single and two-pipe systems. The single-pipe design has been created with a radiator portion of %. E-Z Valves work with all HEIMEIER thermostatic heads and HEIMEIER and TA actuators. The stainless spindle is equipped with a double O-ring seal. The outer O-ring and the complete thermostatic insert can be changed without draining-off the system. The return shut-off is actuated with a hexagon key, size 8. With a two-pipe system, the return shut-off also assumes the presetting function. The spindle is sealed with an EPDM O-ring. Pipe connector G/4, with compression fittings for plastic, copper, precision steel, or composite pipes. For HEIMEIER valves, use only the HEIMEIER compression fittings which have been designed and indicated for the particular application (e.g. ID no. 1 THE). Permitted operating temperature 1 C. Permitted operating pressure bar.

3 Construction Two-pipe system Protection cap, black Single-pipe system Protection cap, blue 1. Shut-off regulator pin. Thermostatic head part 1. Return shut-off. Bypass aperture Application E-Z Valve with immersion pipe is connected to radiators with a lower one-point connection, e.g. bathroom radiators, column radiators, etc. (Follow the directions of the radiator manufacturer). The two-pipe design is suited to pump heating installations with normal temperature spread. The shut-off regulating cone enables hydraulic balancing in order to provide all radiators with the required amount of hot water. The single-pipe design is used for conventional single-pipe heating systems in which all radiators are connected to a single heating circuit. The circuit flow rate is designed to distribute % to radiators and 6% to bypass. When the valve is shut off, the bypass maintains the circuit flow rate such that the circulation in the pipes is not interrupted. In this way it is possible, for example, to integrate towel radiators into a floor radiator circuit. Both the flow and return on E-Z Valves can be shut off. Painting and maintenance work can therefore be executed without interrupting the operation of other radiators. Sample application Notes To avoid damage and the formation of scale deposit in the hot-water heating system, the composition of the heat transfer medium should be in accordance with the VDI guideline. For industrial and long-distance energy systems, see the applicable codes VdTÜV and 1466/AGFW FW. A heat transfer medium containing mineral oils, or any type of lubricant containing mineral oil can have extremely negative effects and usually lead to the disintegration of EPDM seals. When using nitrite-free frost and corrosion resistance solutions with an ethylene glycol base, pay close attention to the details outlined in the manufacturers documentation, particularly concerning concentration and specific additives. Flush the system before changing thermostatic valves in heavy polluted existing systems. The thermostatic valve bodies can be used with all HEIMEIER thermostatic heads and HEIMEIER or TA thermal or motorized actuators. The optimal tuning of the components guarantees maximum safety. When using actuators from other manufacturers, make sure that the pressure power is appropriate for thermostatic valve bodies with soft sealing valve discs.

4 IMI HEIMEIER / Thermostatic heads and Radiator valves / E-Z Valve Technical data Two-pipe kv [m /h] 0,14 0, 0,7 0,46 0,1 0,8 0, , 0,7 1 1, max , 0, Δp [kpa] 0, 0, Δp [mbar] Δp [mm WS] ª (xp K) Thermostatic head with E-Z Valve two-pipe Kv value (presetting max.)*) P-band xp [K] Kvs Permitted differential pressure at which the valve still closes Δp [bar] DN 1 (1/ ) angle, straight 1,0 1,,0,,0 Th.-head EMO T/NC EMOtec/NC EMO EMO LON EMO T/NO EMOtec/NO 0,1 0,44 0, 0,6 0,67 0,8 1,00,70, *) factory setting Sample calculation Goal: Determine pressure loss for two-pipe E-Z Valve Preset max. Given: Heat flow Q = 1 W Temperature spread Δt = 1 K (6/ C) Solution: Mass flow rate m = Q / (c Δt) = 1 / (1,16 1) = 70 kg/h Pressure loss from diagram Δp v = 16 mbar 4

5 Technical data Single-pipe 1, kv [m /h] , 0, Δp [kpa] 0, 0, Δp [mbar] Δp [mm WS] ª R Equivalent pipe lengths [m] Kv 1 x 1 14 x 1 1 x 1 16 x 1 18 x 1 1,, 6,1 9,1 1,7 6,8 Copper pipe t = 80 C (176 F) v = 0, m/s Thermostatic head with E-Z Valve single-pipe DN 1 (1/ ) angle, straight Radiator portion [%] Kv value [m /h] 1, 1, Kv value (Thermostatic valve closed) [m /h] Sample calculation Goal: Determine pressure loss for E-Z Valve, single-pipe Radiator mass flow rate Given: Heat flow in closed circuit Q = 44 W Temp. flux in circuit Δt = K (70/ C) Radiator portion m HK = % Solution: Mass flow in circuit m R = Q / (c Δt) = 44 / (1,16 ) = 190 kg/h E-Z Valve pressure loss Δp v = 16 mbar Radiator mass flow m HK = m R 0, = 190 0, = 66, kg/h

6 IMI HEIMEIER / Thermostatic heads and Radiator valves / E-Z Valve Operation Shut-off The E-Z Valve return shut-off is actuated using a hexagon key, size 8. Turn it clockwise to close. If the E-Z Valve is set for a hydraulic balancing, the corresponding number of rotations for shut-off must be determined specifically. This helps to guarantee that, after connecting a radiator, the original setting can be reestablished. Flow is blocked by turning the protection cap on the thermostatic valve insert clokkwise. If the radiator is dismantled, it is necessary for reasons of safety to shut off the E-Z Valve with an additional plug cap G /4. Regulation (two-pipe system) The E-Z Valve is infinitely variable using a hexagon key, size 8. The valve is first closed and then set using the required number of rotations. The specific number of rotations for the presetting can be taken from the diagram under Technical data. The lock shield is set completely open at the factory. Articles Angle Nickel plated gunmetal DN kv value (max. presetting) *) P-band xp [K] Kvs kv value Radiator portion % 1 Two-pipe system 1 (1/ ) 0,1 0, 0,67 0, Single-pipe system (Housing ID no. /6) 1 (1/ ) 1, Straight Nickel plated gunmetal DN kv value (max. presetting) *) P-band xp [K] Kvs kv value Radiator portion % 1 Two-pipe system 1 (1/ ) 0,1 0, 0,67 0, Single-pipe system (Housing ID no. /6) 1 (1/ ) 1, *) factory setting 6

7 Accessories Compression fitting for copper or precision steel pipe according to DIN EN 7/-1/. Connection male thread G/4 according to DIN EN 161 (Eurocone). Metal-to-metal joint. Brass nickel-plated. With a pipe wall thickness of mm insert supporting sleeves. Heed pipe manufacturer s technical advice. Supporting sleeves for copper or precision steel pipe with a wall thickness of 1 mm. Ø Pipe Ø Pipe L 1, , , , Compression fitting for copper or precision steel pipe according to DIN EN 7/-1/. Connection male thread G/4 according to DIN EN 161 (Eurocone). Soft sealed, max. 9 C. Nickel-plated brass. Compression fitting for plastic pipe according to DIN 476, ISO 8. PE-X: DIN 1689/1689, EN ISO 187; PB: DIN 16968/ Connection male thread G/4 according to DIN EN 161 (Eurocone). Nickel plated brass. Ø Pipe Ø Pipe 1x1, x x1, x x x x Compression fitting for Alu/PEX multi-layer pipe according to DIN Connection male thread G/4 according to DIN EN 161 (Eurocone). Nickel-plated brass. Double rosette Dividable in the middle, made of plastic, white, for various pipe diameters. Centre distance mm. Overall height max. 1 mm. Hand regulating cap for all IMI Heimeier thermostatic valve bodies. Ø Pipe 16x x white RAL

8 IMI HEIMEIER / Thermostatic heads and Radiator valves / E-Z Valve Length adjustment fitting For clamping plastic, copper, precision steel or multi-layer pipes. For valves with male thread connection G /4. Brass nickel-plated. L G/4 x G/ G/4 x G/ S-connection For compensating different pipe distances, e. g. when replacing old single pipe valves. Note flow direction! Brass, nickel-plated. G/4 x G/4 Axial distance [mm] Total length [mm] 11, S-connection set consisting of adapter pieces G/4 x G/4. Brass nickel-plated. Set 1 Set Model Axial distance min. 40/ to max. 60/ Axial distance min. / to max. 6/ Thermostatic insert Replacement part Dimensions E-Z Valve angle Single and two-pipe construction E-Z Valve straight Single and two-pipe construction ø11 R 1/ ø11 R 1/ 66 SW G /4 SW SW 19 SW G /4, 1, 8, G /4 1, 8 G /4 1 mm = 0,094 inch The products, texts, photographs, graphics and diagrams in this document may be subject to alteration by IMI Hydronic Engineering without prior notice or reasons being given. For the most up to date information about our products and specifications, please visit E-Z Valve.14