For reversed flow direction Thermostatic Radiator Valves Thermostatic valve body with and without presetting
IMI HEIMEIER / Thermostatic Heads & Radiator Valves / For reversed flow direction For reversed flow direction The thermostatic valve bodies for reversed flow direction can be used in two-pipe pump heating systems for interchangeable supply and return flow (hammering noises). The valve bodies can be mounted into the return flow connection of radiators in a raised position or tall radiators. This makes the thermostatic head more easily accessible. Key features > > Installation with interchanged supply and return pipe Prevents hammering noises > > V-exact II models with precision presetting For exact hydraulic balancing > > Eclipse models with automatic flow limitation For automatic hydronic balancing > > Valve body in gunmetal Corrosion-resistant and safe Technical description Anwendungsbereich: Applications area. Function: Control Flow limitation (Eclipse) Stepless presetting (V-exact II) Shut-off Prevents hammering noises with interchanged supply and return pipe Dimensions: DN 0- Pressure class: PN 0 Temperature: Max. working temperature: 0 C, with protection cap or actuator 00 C. Min. working temperature: -0 C. Flow range Eclipse: The flow can be stepless pre-set within the range: 0-0 l/h. Delivery setting 0 l/h. (Max. nominal flow qmn at 0 kpa concerning EN : l/h) Differential pressure (ΔpV) Eclipse: Max. differential pressure: 60 kpa (<0 db(a)) Min. differential pressure: 0 00 l/h = 0 kpa 00 0 l/h = kpa Materials: Valve body: Corrosion resistant Gunmetal O-rings: EPDM rubber Valve disc: EPDM rubber Return spring: Stainless steel Valve insert: Brass, PPS The complete thermostatic insert can be replaced using the fitting tool without draining the system. Spindle: Niro-steel spindle with double O-ring sealing. The outer O-ring can be replaced under pressure (Standard, V-exact II). Surface treatment: Valve body and fittings are nickel-plated. Marking: THE, flow direction arrow, DN and II+ Designation. Without presetting: protection cap black, stuffing box with black label. With presetting: protection cap white. Eclipse: Orange protection cap. Pipe connection: The female-threaded version is designed for connection to threaded pipe, or in conjunction with compression fittings, to copper precision steel or multi-layer pipe (only DN ). Connection to thermostatic head and actuator: IMI Heimeier M0x,
Construction With with automatic Eclipse flow limitation With stepless V-exact II precision presetting Without presetting Application The thermostatic valve bodies for reversed flow direction can be used in two-pipe pump heating systems for interchangeable supply and return flow (hammering noises). If any questions arise regarding the increased or reduced output of the radiator in relation to through-flow, ask the radiator manufacturer for information. The valve bodies can be mounted into the return flow connection of radiators in a raised position or tall radiators. This makes the thermostatic head more easily accessible. Corresponding to the standards EnEV and DIN V 470-0, they can be designed with a control difference from K to K thus enabling a broad flow spectrum. The V-exact II model enables hydraulic balancing in order to provide all radiators with the required amount of hot water. Eclipse The required design flow for each radiator is set directly on the Eclipse valve. This automatic flow limitation is done with a twist and the adjusted flow will then not be exceeded. Even if there is an oversupply of pressure, due to load changes in the system, for example other valves closing or during morning start up, Eclipse will guarantee the requested flow. Noise behaviour To ensure low-noise performance, the following conditions must be met: On the basis of experience, the differential pressure over the thermostatic valves should not exceed about 0 kpa = 00 mbar = 0. bar. If in designing the system, higher transient differentials might be experienced in the part-load flow range, differential pressure control equipment such as a STAP Differential Pressure Controller or Hydrolux bypass valves can be used. Mass-flow must be correctly adjusted. The system must be completely deaerated. Noise behaviour Eclipse To ensure low-noise performance, the following conditions must be met: The differential pressure above Eclipse should not exceed 60 kpa = 600 mbar = 0,6 bar (<0 db(a)). Flow must be correctly adjusted. The system must be completely deaerated.
IMI HEIMEIER / Thermostatic Heads & Radiator Valves / For reversed flow direction Sample application Thermostatic valve in the reverse flow connection Radiator, room high Radiator, raised position. Thermostatic valve body for reversed flow direction. Regulux/Regutec lockshield 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 0. For industrial and long-distance energy systems, see the applicable codes VdTÜV and 466/AGFW FW 0. 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
Technical data Eclipse with automatic flow limitation l/h 60 db(a) 0 db(a) max. Lowest flow tolerances 40 0 00 80 60 40 0 min. 0 0 0 0 0 40 0 60 kpa 0 0 0 70 90 0 0 0 l/h 0-00 l/h: 0 kpa 00-0 l/h: kpa *) P-band [xp] max. K. Setting l l l l l l l 0 l l l l l/h 0 0 0 40 0 60 70 80 90 00 0 0 0 40 0 P-band [xp] max. K. P-band [xp] max. K up to 90 l/h. Setting values with different radiator performances and system differential temperatures 0 4 6 7 8 9 0 4 4 6 7 8 9 0 4 0 4 4 6 7 8 9 0 0 4 0 4 6 6 7 8 8 9 9 00 4 40 4 4 6 6 7 7 7 8 8 9 0 4 p min. 0-00 l/h = 0 kpa p min. 00-0 l/h = kpa Q = Radiator performance Δt = System differential temperature Δp = Differential pressure Sample: Q = 000 W, Δt = K Setting value: 6 ( 60 l/h)
IMI HEIMEIER / Thermostatic Heads & Radiator Valves / For reversed flow direction Technical data V-exact II with precision presetting Diagram, valve body with thermostatic head P-band [xp].0 K kv 0,0/ xp 0, K, 4, 6,,,, 7, 0 00 0 0 0 db(a) 4 67 8 00 00 00 P-band [xp].0 K kv 0,0/ xp 0, K, 4, 6, 0,,, 7, 00 0 db(a) db(a) 0 0 00 00 0 4 6 7 8 00 0 0 0 0 0 0 0 0 0, 0, 0, 0, p [kpa] 0, 0, ª [kg/h] 0 0 0 0 00 00 00 p [mbar] 00 p [kpa] 0, 0, ª [kg/h] 0 0 0 0 00 00 00 Δp [mbar] 00 Valve body (DN 0/) with thermostatic head P-band [xp].0 K P-band [xp].0 K Presetting 4 6 7 8 Kv-value 0,049 0,08 0,0 0, 0,46 0,0 0, 0,4 Kv-value 0,049 0,090 0,0 0,6 0,0 0,470 0,90 0,670 Kvs 0,049 0,0 0,8 0, 0,40 0,6 0,740 0,860 Permitted differential pressure, during which the valve is kept closed Δp [bar] Th.- head EMO T-TM/NC EMOtec/NC EMO EMOLON EMO T/NO EMOtec/NO,0,, Flow tolerance ± [%] 0 8 6 4 0 0 0 Kv/Kvs = m /h at a pressure drop of bar. Sample calculation Target: Setting range Given: Heat flow Q = 08 W Temperature spread ΔT = K (6/0 C) Pressure loss, thermostatic valve ΔpV = 0 mbar Solution: Mass flow m = Q / (c ΔT) = 08 / (,6 ) = 7 kg/h Setting range from Diagram: With P-band [xp] max..0 K: 4, With P-band [xp] max..0 K: 4 6
Technical data without presetting Diagram DN 0 (/8 ) to DN (/ ), valve body with thermostatic head DN 0, xp K K 0 0 00 00 0 00 0 0 0 0 0, 0, Δp [kpa] 0, 0, 0 0 0 0 00 00 00 00 000 000 ª [kg/h] Δp [mbar] Valve body with thermostatic head Kv P-band xp [K],0,,0 Angle Straight Kvs Kvs Permitted differential pressure, during which the valve is kept closed Δp [bar] Th.- head EMO T-TM/ NC EMOtec/NC EMO EMOLON EMO T/NO EMOtec/NO DN 0 (/8 ) 0,8 0,9 0,79,00,0 DN (/ ) 0,8 0,9 0,79,00,00,00,0,0 Kv/Kvs = m /h at a pressure drop of bar. Sample calculation Target: Pressure loss of thermostatic valve body DN with a p-band of K Given: Heat flow Q = 9 W Temperature spread Δt = K (6/0 C) Solution: Mass flow m = Q / (c Δt) = 9 / (,6 ) = 80 kg/h Pressure loss from diagram Δpv = 44 mbar 7
IMI HEIMEIER / Thermostatic Heads & Radiator Valves / For reversed flow direction Articles With Eclipse automatic flow limitation SW Angle 8 H D SW l l4 d DN D d l l4 H Flow range EAN Article No [l/h] 0 (/8 ) Rp/8 R/8 6, 0-0 404096 9-0.000 (/ ) Rp/ R/ 9 8, 0-0 404097 9-0.000 SW H D l l SW d Straight DN D d l l H Flow range EAN Article No [l/h] 0 (/8 ) Rp/8 R/8 9 8, 0-0 404098 94-0.000 (/ ) Rp/ R/ 66 9, 0-0 4040990 94-0.000 *) SW: DN 0 = mm, DN = 7 mm SW: DN 0 = 7 mm, DN = 0 mm Values H and H are at the bearing surface thermostatic head or actuator. Articles With V-exact II stepless precision presetting SW Angle 8 H D SW l l4 d DN D d l l4 H Kv p-band max. K 0 (/8 ) Rp/8 R/8 6, 0,0 0,670 (/ ) Rp/ R/ 9 8, 0,0 0,670 Kvs EAN Article No 0,86 40408990 90-0.000 0,86 4040899 90-0.000 SW H D l l SW d Straight DN D d l l H Kv p-band max. K 0 (/8 ) Rp/8 R/8 9 8, 0,0 0,670 (/ ) Rp/ R/ 66 9, 0,0 0,670 Kvs EAN Article No 0,86 40408990 904-0.000 0,86 40408999 904-0.000 *) SW: DN 0 = mm, DN = 7 mm SW: DN 0 = 7 mm, DN = 0 mm Values H and H are at the bearing surface thermostatic head or actuator. Kvs = m /h at a pressure drop of bar and fully open valve. Kv [xp] max. K / K = m /h at a pressure drop of bar with thermostatic head. 8
Articles Without presetting SW Angle 8 H D SW l l4 d DN D d l l4 H Kv [xp] Kvs EAN Article No K / K 0 (/8 ) Rp/8 R/8 6, 0,8 / 0,79,00 404084 90-0.000 (/ ) Rp/ R/ 9 8, 0,8 / 0,79,00 40408460 90-0.000 SW H D l l SW d Straight DN D d l l H Kv [xp] Kvs EAN Article No K / K 0 (/8 ) Rp/8 R/8 9 8, 0,8 / 0,79,0 40408479 90-0.000 (/ ) Rp/ R/ 66 9, 0,8 / 0,79,00 40408488 90-0.000 *) SW: DN 0 = mm, DN = 7 mm SW: DN 0 = 7 mm, DN = 0 mm Values H and H are at the bearing surface thermostatic head or actuator. Kvs = m /h at a pressure drop of bar and fully open valve. Kv [xp] max. K / K = m /h at a pressure drop of bar with thermostatic head. 9
IMI HEIMEIER / Thermostatic Heads & Radiator Valves / For reversed flow direction Accessories Setting key for Eclipse. Color orange. EAN Article No 40409774 90-0.4 Setting key For V-exact II from 0. EAN Article No 40406 460-00.4 Compression fitting for copper or precision steel pipe according to DIN EN 07/00-/. Female thread connection Rp /8 Rp /4. Metal-to-metal joint. Brass nickel-plated. Support sleeves should be used for a pipe wall thickness of 0.8 mm. Follow the specifications of the pipe manufacturer. Ø Pipe DN EAN Article No 0 (/8 ) 40407464 0-. 4 (/ ) 4040747 0-4. (/ ) 4040707 0-. 6 (/ ) 404076 0-6. 8 0 (/4 ) 40407 0-8. Support sleeve for copper or precision steel pipe with a mm wall thickness. Brass. Ø Pipe L EAN Article No,0 4040706 00-.70 6,0 4040797 00-.70 6 6, 4040849 00-6.70 8 6,8 404088 00-8.70 Compression fitting for Alu/PEX multi-layer pipe according to DIN 686. Female thread connection Rp /. Nickel-plated brass. Ø Pipe EAN Article No 6 x 4040866-6. Double connection fitting For clamping plastic, copper, precision steel or multi-layer pipes. Brass, nickel-plated. L EAN Article No G/4 x R/ 6 4040084 -.08 Compression fitting for copper or precision steel pipe according to DIN EN 07/00-/. Connection male thread G /4 according to DIN EN 6 (Eurocone). Metal-to-metal joint. Brass nickel-plated. With a pipe wall thickness of 0.8- mm insert supporting sleeves. Heed pipe manufacturer s technical advice. Ø Pipe EAN Article No 40404 8-. 4 404040 8-4. 4040467 8-. 6 4040494 8-6. 8 40408 8-8. 0
Compression fitting for copper or precision steel pipe according to DIN EN 07/00-/. Connection male thread G /4 according to DIN EN 6 (Eurocone). Soft sealed, max. 9 C. Nickel-plated brass. Ø Pipe EAN Article No 40408 -. 8 4040606-8. Compression fitting for plastic pipe according to DIN 476, ISO 008. PE-X: DIN 689/689, EN ISO 87; PB: DIN 6968/6969. Connection male thread G /4 according to DIN EN 6 (Eurocone). Nickel plated brass. Ø Pipe EAN Article No x, 4040608 -. 4x 4040468-4. 6x, 404067-6. 6x 4040486-6. 7x 404049-7. 8x 40400-8. 0x 40408-0. Compression fitting for Alu/PEX multi-layer pipe according to DIN 686. Connection male thread G /4 according to DIN EN 6 (Eurocone). Nickel-plated brass. Ø Pipe EAN Article No 8x 404074-8. Fitting tool complete with case, box spanner and replacement seals, for replacing thermostatic inserts without draining off the heating system (for DN 0 to DN 0). EAN Article No Fitting tool 40409894 97-00.000 Replacement seals 40409900 97-00.4 Measuring spindle for fitting tool for differential pressure measurement at thermostatic valve bodies with TA-Scope balancing instrument. Article No on request Other accessories, see catalogue leaflet Accessories and spare parts for thermostatic radiator valves.
IMI HEIMEIER / Thermostatic Heads & Radiator Valves / For reversed flow direction 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 www.imi-hydronic.com. -8.48 EN For reversed flow direction ed. 0.07