Accessories for Sanitary Installations

Transcription

1 5. Accessories for Sanitary Installations Flamco s Prescor B safety valves protect potable water systems from exceeding the maximum design operating pressure. Once the set pressure has been reached the safety valve will open to prevent a further rise in pressure. Prescor valves are produced in a variety of fitting sizes and pressure ratings. The materials and construction of Flamco B safety valves are of the highest quality to ensure total safety and peace of mind. They can be used in combination with any boiler system. 132 Product overview 2013 We reserve the right to change designs and technical specifications of our products.

2 Accessories for Sanitary Installations 5 Product overview 2013 We reserve the right to change designs and technical specifications of our products. 133

3 Prescor Boiler Valves The Highest Quality of System Protection The Prescor B and SB boiler valves protect sealed mains water systems against excess pressure. Such a safeguard is a requirement because of the expansion of system water and the presence of a non-return valve. Of course, water cannot be compressed, so without this sort of safeguard the pressure in the system could rise to a dangerous level. Local regulations and standards and water pressures must be observed when using Prescor B and Prescor SB valves at all times. Cap for lifting the valve. Spring for setting the pressure of the safety valve. Diaphragm that prevents moisture and dirt from getting into the moving parts. Valve with rubber seal. PRESCOR B Benefits Solid brass housing. Wide range, so the right valve can be used at all times. Because of the ''pop'' effect a high blow-off capacity. Can be used in combination with any storage boiler system. Construction and choice of materials are your guarantee of safety. N.B. Prescor boiler valves must not be installed with the discharge port facing upwards. OK XWRONG 134 Product overview 2013 We reserve the right to change designs and technical specifications of our products.

4 Accessories for Sanitary Installations 5 How It Works When the system pressure reaches the set pressure, the Prescor B boiler valve begins to vent, whereby the pressure stops rising. If, due to specific circumstances, the pressure rapidly rises over the set pressure, the Prescor B boiler valve will open fully, creating a large blow off capacity. This is a permanent, reliable safeguard against overpressure. Venting can be prevented by fitting a suitably sized Airfix expansion vessel for sanitary systems. The valve size of both the Prescor B and the Prescor SB is determined by the capacity and output of the boiler. Lifting lever. The set pressure of the safety valve is locked and cannot be changed. To prevent limescale, the moving parts must be kept dry in all circumstances. The diaphragm ensures this. All Prescor B and Prescor SB valves are individually tested to guarantee their function, and they comply with European Directive 97/23/EC, the Pressure Equipment Directive. PRESCOR SB Well Designed Technology and Application The seating of Prescor boiler valves is designed so that it not only makes a perfect seal, but can also achieve a large blow-off capacity. The hardness of the rubber is adapted according to the set pressure of the safety valve. Due to this combination of a specifically designed seating and special rubber, it is possible to achieve optimum safety. Product overview 2013 We reserve the right to change designs and technical specifications of our products. 135

5 PRESCOR B SAFETY VALVES For protecting water heaters and potable water systems. Prescor B Set pressure [bar] Inlet Connection Outlet Capacity [kw] Prescor B 1 / / 2" F 1 / 2" F Prescor B 1 / / 2" F 1 / 2" F Prescor B 1 / / 2" F 1 / 2" F Prescor B 3 / / 4" F 1" F Prescor B 3 / / 4" F 3 / 4" F Prescor B 3 / / 4" F 1" F Prescor B 3 / / 4" F 1" F Prescor B " F 1 1 / 4" F Prescor B " F 1 1 / 4" F Prescor B " F 1 1 / 4" F Prescor B " F 1 1 / 4" F Nr Prescor SB Set pressure [bar] Inlet Connection Outlet Capacity [kw] Prescor SB 1 1 / / 4" F 1 1 / 2" F Prescor SB 1 1 / / 4" F 1 1 / 2" F Prescor SB 1 1 / / 4" F 1 1 / 2" F Prescor SB 1 1 / / 2" F 2" F Prescor SB 1 1 / / 2" F 2" F Prescor SB 1 1 / / 2" F 2" F Prescor SB " F 2 1 / 2" F Prescor SB " F 2 1 / 2" F Prescor SB " F 2 1 / 2" F Nr AIRFIXCONTROL With this component the flushing function is fully guaranteed. When the vessel is disconnected from the system, the system flow remains in function. AirfixControl enables an easy yearly precharge check of the Airfix A or D expansion vessel. AirfixControl AirfixControl Product overview 2013 We reserve the right to change designs and technical specifications of our products.

6 Accessories for Sanitary Installations 5 WALL MOUNTING Flexcon DT To assist in mounting and removing Flexcon and Airfix vessels. A Application Dimensions A Flexcon DT Flexcon/Airfix SB-A Band For mounting an Airfix P expansion vessel (2-35 litres) to the wall. Application SB-A MB Band for fitting Airfix P vessels, to be combined with MB For mounting Flexcon/Airfix vessels of 8-25 litres. Provided with a slot into which the Flexcon vessel clamp ring fits precisely. Tightening the two bolts is all that is needed to make a sturdy connection. Material: DC01 A-m, zinc coated. Connection to the wall with two Ø8 plugs and two Ø6 screws with hexagon head (wrench 10). Connection of the vessel to the MB by means of two M5 bolts with cross head. Separately available are sets of 5 hose clamps for connection vessels without clench ring (size approx. Ø 325 mm). With spring and adapter for even more installation convenience. A B C Dimensions A B C Flexcon vessel support MB Flexcon vessel support MB Product overview 2013 We reserve the right to change designs and technical specifications of our products. 137

7 Flamco Safety Groups For Effective Safeguarding of Your System Combination Pressure Relief Valves and Safety Groups Apart from the Prescor B and Prescor SB boiler valves, Flamco also supplies different types of Prescor IC and Flexbrane safety groups. The Benefits of Prescor IC ½". Sound-class 1 approved. KIWA/Belgaqua certified. With ½" 15 mm compression fitting. Large flow capacity, so hardly any loss of pressure through the outlet. Tundish can be rotated through 360. Hence it can be fitted in almost any position. Compact, so recommended for built-in appliances. Non-return valve prevents water flowing back into the supply line. Opening for the non-return valve at the back. Relief valve. FLEXBRANE Block and bleed valve. Tundish. PRESCOR IC The tundish can be rotated through 360. Hence it can be fitted in almost any position. Compact model, modern design. 138 Product overview 2013 We reserve the right to change designs and technical specifications of our products.

8 Accessories for Sanitary Installations 5 SAFETY GROUPS For protecting the potable water system from excess pressure during the heating cycle. A non-return valve with inspection port will prevent the water (e.g. from a water heater) from flowing back into the mains water pipe Δ Pressure (bar) Prescor IC ½" Prescor IC ¾" Capacity (m 3 /h) Prescor IC For storage vessels up to [l] Set pressure [bar] Connection* Prescor IC 1 / 2 - solder w x 15 w x 22 c Prescor IC 1 / 2 - compression c x 15 c x 22 c Prescor IC 3 / 4 - solder w x 22 w x 28 c Prescor IC 3 / 4 - compression c x 22 c x 28 c * c = compression connection w = solder connection Flexbrane Set pressure [bar] Connection Flexbrane CE-H 3 / 4 hor. 7 3 / 4" F x 3 / 4" M x 1" M Flexbrane SST NF - ACS 7 3 / 4" F x 3 / 4" M x 1" M Flexbrane CF 1 hor. 7 1" F x 1" M x 1" M Plastic siphon for CE and connection piece 7 1" x 1" Product overview 2013 We reserve the right to change designs and technical specifications of our products. 139

9 Prevent Water Hammer Simply and Effectively The Flexofit water hammer arrestor has been specially developed to absorb water hammer in sanitary mains water systems and is made of chrome-plated brass. Some Possible Causes of Water Hammer A valve (or solenoid) or tap closing too quickly. The non-return valve. A pump that suddenly cuts in or out. Pressurized gas cushion. Rubber diaphragm. Water at system pressure T-piece. The Flexofit water hammer arrestor absorbs the wave of pressure before it can develop into water hammer. The Flexofit does this by having two areas that are separated by a rubber diaphragm. On one side, there is a gas cushion under pressure, while the other side is in connected to the system. The gas cushion compresses and absorbs the wave of pressure. 140 Product overview 2013 We reserve the right to change designs and technical specifications of our products.

10 Accessories for Sanitary Installations 5 Selection Table System pressure [bar] Pipe diameter Max. pipe length up to the 1 st bend [m] Number of Flexofit S water hammer arrestors to be fitted ½" (15 mm) ¾" (22 mm) " (28 mm) ¼" (35 mm) This table is based on a flow rate of 3 m/s. A Flexofit in the line leading to a urinal flusher In combination with a wash hand basin Used with a washing machine Water hammer can be described as a change in pressure in a sealed pipeline as a consequence of sudden changes in the flow speed of fluid in the system. This creates a wave of pressure that moves rapidly through the line. This wave of pressure may result in the creation of vibrations, noise or even a fracture in the pipe or serious damage to equipment and pumps. It is thus important to prevent water hammer. FLEXOFIT T-PIECE Product overview 2013 We reserve the right to change designs and technical specifications of our products. 141

11 FLEXOFIT S WATER SHOCK ARRESTOR Flexofit S absorbs water hammer in order to minimize noise and damage to the system. Solid brass, chromium plated housing. Maximum working pressure: 10.0 bar. Maximum working temperature: 90 C (363 K). Flexofit S Pre-charge [bar] Dimensions Connection Ø H. Flexofit S 1 / / 2" M Flexofit S T-fitting For mounting Flexofit water hammer arrestors quickly and easily between the tap and the washing machine or dish-washer. Connection T-fitting Flexofit S 3 / 4" F x 1 / 2" F x 3 / 4" M VESSEL CARRIER Vessel Carrier A handy vessel carrier which makes it very easy and safe to handle or transport the exchanged vessel. Easy to use. Prevents spilling of (polluted) heating installation water in your transporter or at home with the customer. The vessel can be handled with one hand only. Easy to be mounted and removed (for multiple use). Connection Application Vessel carrier 3 / 4" Flexcon/Airfix Product overview 2013 We reserve the right to change designs and technical specifications of our products.