R554DY005 GIACOMINI | Alldatasheet
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Technical content
IntermedIa te group for manIfolds r554d ISO 14001 0032A/3 OHSAS 18001 0064L/1 ISO 9001 Operation The operation of the automatic air vent valve is is based on the principle of the floating of bodies immersed in a fluid. When there is no air accumulation into the valve body, the float is in raised position and through the mechanism, it keeps the obturator under closing. The lowering of the floating level caused by the air accumulation into the valve body, involves the obturator opening and the consequent discharge that persists up to the reintroduction of the initial conditions. At the system load, as there is no water into the valve body, the float is completely down permitting to the air to flow quickly. The air discharge is prevented by screwing the lateral plug. In normal operation conditions, the plug shall be unscrewed. Installation The R554D group is usually installed on the manifolds. It must be put in vertical position, with the plug facing upwards. The installation is advisable in places that can be easily inspected. Warning. Close the cap of the air vent valve when rinsing out and filling the system, to prevent impurities from entering the mechanisms of the valve and damaging it. Example of installation with the manifold
Description
Intermediate group for manifolds, in brass, with self-sealing. Provided with: automatic air vent valve (R88), drain tap (R608), thermometer (R540), terminal plug (R592D). Suitable for heating and cooling systems, with water and glycol solutions. Versions and product codes Product code Connections R554DY005 1” R554DY006 1 1/4” Technical data
- Temperature range: 5÷110 °C
- Maximum working pressure: 10 bar
- Maximum pressure of air vent operation: 7 bar (R88)
- Terminal plug: 1”M (R592D)
- Plug: 1/2”M (R92)
- Thermometer: 3/8” , Ø 40 m, range 0÷80 °C (R540)
- Drain tap: 1/2” , with hose connection (R608) Materials Body, plugs and drain tap: UNI EN 12165 CW617N brass
- Gaskets: EPDM
- Body (R88): ottone UNI EN 12165 CW617N
- O-Ring (R88): EPDM
- Shutter spring (R88): inox
- Internal float (R88): PP-H Performance The table and the graph report the air capacities in discharge, in standard conditions at the change of the relative pressure of the system. 10 2 3 4 5 6 7 600 500 400 300 200 100 l/h bar bar 1 2 3 4 5 6 7 l/h 440 510 540 500 400 310 250 R554D
IntermedIa te group for manIfolds r554d ISO 14001 0032A/3 OHSAS 18001 0064L/1 ISO 9001 Dimensions B C A G FE D Product code Connec- tions A [mm] B [mm] C [mm] D [mm] E [mm] F [mm] G [mm] R554DY005 1” 100 36 64 164 92 72 63 R554DY006 1 1/4” 106 40 66 171 96 75 71 Product specifications R554D Intermediate group for manifolds, in brass, with self-sealing. Provided with: automatic air vent valve (R88), drain tap (R608), thermometer (R540), terminal plug (R592D). Suitable for heating and cooling systems, with water and glycol solutions. Temperature range: 5÷110 °C. Maximum working pressure: 10 bar. Maximum pressure of air vent operation: 7 bar (R88). Additional information For additional information please check the website www.giacomini.com or contact the technical service: ' +39 0322 923372 6 +39 0322 923255 * consulenza.prodotti@giacomini.com This pamphlet is merely for information purposes. Giacomini S.p.A. retains the right to make modifications for technical or commercial reasons, without prior notice, to the items described in this pamphlet. The information described in this technical pamphlet does not exempt the user from following carefully the existing regulations and norms on good workmanship. Giacomini S.p.A. Via per Alzo, 39 - 28017 San Maurizio d’Opaglio (NO) Italy