JRGUTHERM - Thermostatic flow regulator with threaded shut-off connections

JRG Valves JRGUTHERM Thermostatic flow regulator with threaded shut-off connections

Structure 1 1 Scale ring 2 2 Body, gunmetal 3 Regulator sleeve, gunmetal 4 O-Ring, EPDM 5 Thermostat 6 Spring-loaded pin, brass 7 Regulator body, POM 3 8 Working spring 4 5 6 7 8 Planning instruction The regulators in the remaining pipe lines are to be selected in such a way that the intersection of the flow rate and the necessary pressure drop lies within the Even with self-regulating circulation regulators such as interpretation field. the JRGUTHERM, it is necessary to configure the system simply. In the appropriate configuration, with the most unfavourable flow way, the installation of a JRGUTHERM Recommended temperature spreading water heater – flow regulator can be avoided or it can be replaced by a JRGUTHERM: 2–5 K. mechanical throttle e.g. JRG Code 6310–6317. In order to select the suitable pump, the discharge flow A JRGUTHERM is to be integrated into all circulation of the entire system has to be determined. The delivery outlets. height is calculated from the pressure loss of the least favourable pipe line (flow way). The pressure loss of the If there is any danger of the water flowing through the JRGUTHERM in this pipe line is measured on the kVmax line JRGUTHERM flow regulator in the wrong direction, this on the diagram. is to be avoided by the installation of suitable non-return valves. We recommend the installation of JRG Code 8208 The pump performance of excessively strong pumps screw connections with non-return valves. are to be throttled at the pump. The JRGUTHERM must not be used to throttle the pump (maximum differential For questions and information on application technology, pressure = 0.4 bar). please contact our technical advisors or the technical customer service. 2

Function The JRGUTHERM flow regulator regulates the flow Advantages volume by permanently sensing the water temperature with a thermostat. The hydraulic calibration is thus • Simplifies flow calculations automatically established. By using the appropriate • No setting up calculations threaded shut-off connections, non-return valves and • Simple regulator operation shut-off can be directly integrated. • Maintenance-free • Automatic adjustment of the flow volume (hydraulic Materials balance) All water-conducting components are made of gunmetal, • Shorter heat-up phase after temperature drop copper, stainless steel or high-grade plastic. • Energy saving Installation position The JRGUTHERM flow regulator can be installed in any position. We recommend that, for revision purposes, JRG Code 8339 threaded shut-off connections has to be installed before and after the flow regulator. Area of application Setting range 36-63°C Maximum temperature load 70°C Maximum operating pressure PN 10 40 kPa Maximum differential pressure (0,4 bar) The JRGUTHERM flow regulator is protected from over- heating. The JRGUTHERM flow regulator is to be fitted with a bypass for thermal disinfection. The JRGUTHERM flow regulator is not suitable for use in gravity circuits. 3

Nomograms JRGUTHERM 6320.914 ½ kV max. 1.15 m 3/h kV min. 0.15 m 3/h optimum area 0.5 0.4 0.3 0.2 0.1 0.08 0.06 0.04 0.03 0.02 0.001 Flow volume V (l/h) JRGUTHERM 6320.924 ¾ kV max. 2.00 m 3/h kV min. 0.20 m 3/h optimum area 0.5 0.4 0.3 0.2 0.1 0.08 0.06 0.04 0.03 0.02 0.001 Flow volume V (l/h) 4 Maximum admissible differential pressure 0.4 bar! Pressure loss Δp [bar] Pressure loss Δp [bar] Pressure loss Δp [kPa] Pressure loss Δp [kPa]

Sample of installation upper distribution pipe on pipe conventional m3 single circulation DIN Text JRG Code SIA TWK – cold water – WKR TWW – hot water – WWV TWZ – circulation WW – WWR Stop valve 5000-31 Non-return valve 1640-66 Swing check valve 1682 Adjustable socket 6310 JRGUTHERM flow regulator 6320 Circulation pump Drain cock 6000-12 Circulation collector 5560 Water meter 5450 m3 Ball valve 6020/23 5

JRGUTHERM/Screw connections JRGUTHERM Flow regulator, PN 10 • Connection: male thread • Material: gunmetal •  Factory setting: 57°C (adjustable 36 - 63°C) GN DN JRG GF Weight d1 G h l ⎔ l1 l2 l3 b1 (inch) (mm) Code Code (kg) (inch) (mm) (mm) (mm) (mm) (mm) (mm) 1∕2 15 6320.914 350 831 401 0.500 3∕4 64 60 8 194 38 70 37 3∕4 20 6320.924 350 831 501 0.519 1 64 60 8 194 38 70 37 Union, PN 10 • Description: to 3600, 6320, 6325 • Temperature: max. 90°C • Connection: female thread •  Consisting of: ball valve, lockable, loose nut GN DN JRG GF Weight d1 Rp d2 G l ⎔1 ⎔2 ⎔3 z (inch) (mm) Code Code (kg) (inch) (inch) (mm) (mm) 1∕2 15 8339.240 350 887 710 0.170 1∕ 32 ∕4 55 30 27 6 43 3∕4 20 8339.320 350 887 911 0.260 3∕4 1 55 37 32 6 47 Union with non return valve • Material: brass, plastic, EPDM •  Connection: male thread GN DN JRG GF Weight d1 R d2 G l l1 l2 z ⎔1 ⎔2 (inch) (mm) Code Code (kg) (inch) (inch) (mm) (mm) (mm) (mm) 1∕ 15 8208.240 351 055 901 0.090 1∕ 32 2 ∕4 40 34 6 19 30 19 3∕4 20 8208.320 351 056 001 0.150 3∕4 1 44 37 7 20 37 24 6

Adjustment/Setting ranges Setting of the flow regulator Adjusting the flow regulator All flow regulators built into the system must be adju- Changing the factory setting is done exclusively on the re- sted to the same scale values. A step less adjustment is sponsibility of the person who undertakes it. The factory possible. The settings value are shown in the table. The setting of the JRGUTHERM flow regulator can be changed calibration of the individual circulation lines takes place as follows: automatically. Put Allen key into the hexagon socket. Turning the key Transport packing clockwise lowers the temperature, turning it anticlock- wise raises it. JRGUTHERM scale value Circulation set point value 1 36°C 2 41°C 3 45°C 4 49°C 5 53°C 6 (factory setting) 57°C 7 63°C Maintenance – The JRGUTHERM flow regulator operates largely maintenance-free. – The assembly and operating instructions supplied are to be given to the owner on delivery of the The transport packing of the JRGUTHERM flow regulator equipment. serves as thermal insulation after assembly and setting. 7

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They neither constitute expressly 37 237 62 warranted characteristics nor guaranteed properties nor a guaranteed durability. e / 3.18 / DH They are subject to modification. Our General Terms of Sale apply. © Georg Fischer JRG AG Hauptstrasse 130 CH-4450 Sissach/Switzerland Telefon +41 (0) 61 975 22 22 info.jrg.ps@georgfischer.com Printed in Switzerland