BAYARD is a company of. Hydraulic control valve Hydrobloc system

Transcription

1 BAYARD is a company of Hydraulic control valve Hydrobloc system

2 Hydrobloc control valve 1 - Technical data Range: - DN 50 to 1000 for XGS design. - DN 50 to 800 for XG design. - DN 50 to 300 for XGA design PN 10, 16 or 25 (depending on functions). Maximum temperature: +1 C to +65 C. Seating: class A according to standard ISO XG and XGS designs: - Face-to-face dimensions according to standards EN series 1 (except DN 1000) and ISO 5752 series 1 (except DN 1000). XGA design: - Face-to-face dimensions according to standard ISO 5752 series 8 (except DN 300). Flange drilling according to standards EN and ISO : ISO PN10, 16 or 25 for DN 50 to 1000 (other drillings on request). Fluid: drinking water or 2 mm filtered untraited water. 2 - Characteristics and performances How to choose the design: - Bayard range offers two different versions: XG and XGS design. - The decision which design to take depends on the required application and on the pressure and flow rate conditions. - The XGS design specially fits for a pressure reducing application and when there is a risk of cavitation. - The XG design suits better for low head loss conditions. Globe pattern. Single chamber. XGS design. Globe pattern. Single chamber. XG design. Globe pattern. Double chamber. XG design. Angle pattern. Single chamber. XGA design. Recommended velocity (VE) XGS design m/s XG design m/s Permanent maxi velocity 4 5 Exceptional maxi velocity 6 7 For a surge anticipating valve: higher maxi velocities might be acceptable, please consult us. Mechanical resistance: - Main valve PN25 in standard version (PN40, please consult us). - Pilot circuit PN10, PN16 or 25 according to the expected applications. (Other possibilities please consult us). Control accuracy: Control accuracy is guaranteed by: - The pilot system principle. - The linearity between the open section freed by the movements of the mobile unit and its stroke. In the mentioned operating range, the accuracy for pressure control is more or less 5% (other functions: see dedicated data sheet.) 2 Bayard APXA January, 2012

3 Hydrobloc control valve 3 - Hydraulic characteristics Head loss curves for fully open valve XGS design Head loss in m WH Head loss in m WH XG design DN 50 DN 65 DN 50 DN 80 DN 100 DN 65 DN 80 DN 125 DN 100 DN 150 DN 125 DN 150 DN 200 DN 250 DN 200 DN 250 DN 300 DN DN 300 DN 400 DN 500 DN 400 DN 600 DN 700 DN 600 DN 900 DN 800 DN 1000 Flow rate in l/s Flow rate factor (Kv) DN XGS design XG design Kv Kv Flow rate in l/s Curves and data established for water at 20 C for standard valve mounted on horizontal pipe. Kv: (flow rate factor) is the flow rate at 20 C expressed in m 3 /h which generates a head loss of 1 bar inside the valve. How to choose the diameter The diameter of the valve must be chosen according to the flow rate conditions and the pressure on the valves. Generally two cases are to be considered: Case 1: The head loss of the valve has to be as low as possible (2 to 5 according to the DN and design) because the available head loss or the static pressure are 1 bar. Case 2: The available head loss is high, so higher velocities can be admitted (beforehand, check that the available head loss is higher than the head loss through the fully open valve at the maximum considered flow rate). Recommended flow rates (l/s) VE*/ DN XGS Design Case 1 Mini flow rate Maxi permanent flow rate Case 2 Mini flow rate Maxi permanent flow rate XG Design Case 1 Mini flow rate Maxi permanent flow rate Case 2 Mini flow rate Maxi permanent flow rate * VE (m/s) = Equivalent velocity: average velocity in the inlet section (DN) These values don t apply to flow limiting, overspeed and differential functions. Bayard APXA January,

4 Hydrobloc control valve XGS and XG: Globe pattern main valve ø B Double chamber (XG design)* C Single chamber D H A XGS design XG design DN A** B C D Weigh*** B C D H Weigh*** Weigh*** mini mini Single chamber Double chamber mm mm mm mm kg mm mm mm mm kg kg Consult us C mini: visual position indicator. C maxi: with SCADA position transmitter option (with limit switch option up from DN 800). On some valves, the pilot circuit can be larger than the overall dimensions of the main valve. XGA: Angle pattern main valve * XGS design for double chamber, please consult us. ** For flow limiting or overspeed application see dedicated technical data sheet for face-to-face dimensions. *** Weight for main valves only. ø B A2 C Single chamber H Double chamber A1 DN A1 A2 B C mini. H Weight* Weight* mm mm mm mm mm Single chamber kg Double chamber kg 50 XGA XGA XGA XGA XGA XGA XGA XGA * Weight for main valves only. 4 Bayard APXA January, 2012

5 Some examples... of the most common associated functions Hydrostab pressure reducing valve Serie K1 10 Small air valve kit ITR KV007 Limit switch ITR KV008 Time - based electric control - ITR KE027 Electric control ITR KE010 Non-return function ITR ITR KH016 Small air valve kit ITR KV007 Electric control ITR KE010 Non-return function ITR KH016 Twin filter circuit ITR KH002 Upstream-downstream function ITR KH007 + KH012 Altitude function ITR KH010 Motorised pilot ITR KE016 Automatically reduces a higher upstream pressure to a steady lower downstream pressure regardless of variations of flow and/or of upstream pressure. Standard spring P = 1 to 20 bar Other P = 0.2 to 2 bar P = 15 to 25 bar (limited to 300XG and 400XGS) Other values, consult us. Other PN, consult us. Hydrostab pressure sustaining / relief valve Serie K1 20 Maintains a minimum upstream pressure, by either sustaining or relieving excess pressure to the downstream side. Standard spring P = 1 to 20 bar. Other P = 0.2 to 2 bar. P = 15 to 25 bar (limited to 300XG and 400XGS). Other values, consult us. Other PN, consult us. Hydrostab pressure reducing / sustaining valve - Serie K1 50 Sustains a minimum upstream pressure and reduces the downstream pressure to a constant lower value. Standard spring P = 1 to 20 bar. Other P = 0.2 to 2 bar. P = 15 to 25 bar (limited to 300XG and 400XGS) Other values, consult us. Other PN, consult us. Hydro flow rate limiting valve Serie K2 10 Limits the flow rate to a preset value regardless of upstream and downstream pressures. VE = 1 to 2.5 m/s (standard) VE = 2 to 4 m/s Maximum differential pressure: 10 bar. Special requirements Extremely low and high p, please consult us. Hydro-savy float valve Serie K3 20 Pilot frost protection ITR KH037 Savy upstream pressure sustaining (K370) + frost protection ITR KH038 Upstream pressure sustaining ITR KH007 Upstream overpressure relief ITR KH006 2-level altitude ITR KH029 Upstream pressure sustaining ITR KH008 PN16 protection by downstream pilot ITR KH014 Upstream overpressure relief ITR KH006 Closes at top level and fully re-opens at lower adjustable level, allowing water renewal in the reservoir (float pilot located in the reservoir). Savy flow limiting (K380) + frost protection ITR KH039 Options Air valve kit for pilot circuit. Frost protection. Pressure relief (in case of upstream water hammer). Manual control for closing. Hydro altitude valve Serie K3 10 Closing at a constant and adjustable top level. Balances the inlet flow rate and the outlet flow rate till approximately 0.40 or 0.50 m below the top level. Standard H=1.5 to 8 m. Others H= 6 to 30 m (others values, consult us). H : altitude difference between the pilot and the closing level. Hydro-vega float valve Serie K3 40 Closes at a constant top level (float pilot located in the reservoir). A ccording to the location of the pilot valve in the reservoir. Options PN 16. PN 25 with pilot protection. Bayard APXA January,

6 Your Choice in Waterflow Control TALIS is always the number one choice whenever water transport or control is required. TALIS has the best solution for water and energy management, as well as for industry and municipal applications. With a varied range of $ISTRIBUTION D EAU "ARRAGES 4RAITEMENT DE L EAU 3TOCKAGE EAU POTABLE )RRIGATION )NDUSTRIE!SSAINISSEMENT 'AZ hydrants to butterfly valves. From the knife-gate valves to the needle valves. Our experience, innovative technology, global expertise and 3TATIONS DE POMPAGE individual consultation process form the basis for developing sustainable solutions for the efficient handling of the vital resource water. BAYARD ZI - 4 avenue Lionel Terray BP Meyzieu cedex France Tél (0) Fax + 33 (0) Site: bayard@talis-group.com 6 Bayard APXA January, 2012 The technical data and performance can be modified without prior notice depending on the technical evolution. products we offer comprehensive solutions for the entire water cycle. From