HYDRAULIC EQUIPMENTS Flow controllers, penstocks, 'flap valves Edition 03/2008 Water mana g ement

Flow controllers HYDRAULIC EQUIPMENTS Flow controllers, penstocks and flap valves A c o m p l e t e p ro d u c t r a n g e fo r w a s t e w a t e r a n d r a i n w a t e r General description The flow controller is a device designed to provide a constant outflow regardless of the water level upstream of the outlet.The penstock is designed for water seepage. The flap valve installed at the outlet prevents the water from returning into the system. These devices are used in waste water and rain water regulation networks. Generally, they are integrated in constructions such as: • Storm basins, Rain...

Flow controllers Flow controllers Operating principles Product ranges optimized to meet your needs Why a flow controller for a storm basin? The graph to the right shows the flow rate curves of a flow nozzle with a 45-mm diameter and a RDM1020 controller (see page 5) for a maximum flow rate of 8 l/s and a water height of 2 m. We see that for a water height of 80 cm, the flow nozzle discharges only 5.2 l/s, i.e. 35% less than the desired flow rate whereas a flow controller would ensure a maximum flow rate of 8 l/s. Consequence: with simply a flow nozzle: • We must increase the size of the storage...

Flow controllers Flow controllers Product ranges Ranges adjusted to flow rates and water heights Regulation curves HydroRegul Because of its operating principle, the HydroRegul flow controller is a highly precise device that ensures a virtually constant flow rate (within 5%) at any height (see curve to the right). The outlet cross-section adjusts at the slightest float movement. It can regulate flow rates from 4 to 360 l/s and it can be installed on outlets with a cross-section from 100 to 500 mm for water heights from 0.4 to 3 m (for larger flow rates and heights, please consult our design office)....

Flow controllers Selection and installation Products suitable for any kind of installation Several criteria govern the choice of a flow controller • Type of waste water to be regulated: L Light waste water □ Waste water □ Rain water • Required regulation precision: L Between 5 and 10% □ More than 10% • Installation type (see below): L Open-air in a basin □ In a chamber L Upstream (immerged device) □ Downstream (device in dry pit) • Recovery of the floating substances: L Yes □ No Open-air installation Example with an RDL model from the HydroRegul range Provide a construction of the height of the...

Flow controllers Flow rate 4 -> 360 l/s Maximum water height: 3 m Installation : upstream Flow controller Models with front arm RDM or RDF & guillotine closing valve RDMV or RDFV For light waste water & rain water Manufacture with • 304L stainless steel frame rings drilled holes for wall fastening and lifting • Dn 100 to Dn 350 (RDM or RDMV): polythylene Removable plate to adjust flow rate and calibrated float RDFV): • Dn 400 to Dn 500to(RDF orflow rate and 304L Removable plate adjust stainless steel calibrated float with fastening kit • Suppliedand stainless steel fasteners Silicone Specific...

HydroRegul Flow controller Models with front arm RDM, RDMV, RDF & RDFV Product selection • HydroRegul is H for use with heavy waste water. Dn 100 to 500 • A flow controller is determined in accordance o with the flow rate to be regulated (Q) in l/s, and the maximum water level height (H) in meters. • The table below enables a model to be selected according to these criteria: ^^Fjow Rate Height^\^ If requested, a precise regulation curve will be supplied with each device. Flow controllers Option • ARD plate to install the device with a different Dn For example, the civil work is Dn 200 and the...

Flow controllers Flow rate 4 -> 360 l/s Maximum water height: 3 m Installation: upstream Flow controller Models with side arm RDL or RDT & guillotine closing valve RDLV or RDTV For light waste water & rain water Manufacture with • 304L stainless steel frame ringsdrilled holes for wall fastening and lifting Dn 100 to Dn 350 (RDL or RDLV): Removable plate to adjust flow rate and polythylene calibrated float RDTV): • Dn 400 to Dn 500to(RDT orflow rate Removable plate adjust and 304L stainless steel calibrated float with fastening kit • Suppliedand stainless steel fasteners Silicone Specific equipment...

HydroRegul Flow controller Models with side arm RDI , RDLV, RDT & RDTV mz Product selection • HydroRegul is H for use with heavy waste water. Dn 100 to 500 • A flow controller is determined in accordance o with the flow rate to be regulated (Q) in l/s, and the maximum water level height (H) in meters. • The table below enables a model to be selected according to these criteria: Q [I/s] ^SFJow Rate Height\^ If requested, a precise regulation curve will be supplied with each device. Flow controllers Option • ARD plate to install the device with a different Dn For example, the civil work is Dn 200...

Flow controllers Flow controller Models with front arm RDM , RDMV, RDF & RDFV HI References ~ Dn 100 to 500 Flow controllers Hydraulic Equipments © 2008 - All rights reserved

Flow controllers Hydraulic Equipments © 2008 - All rights reserved RBI HydroRegul Flow controller Models with side arm RDL, RDLV, RDT & RDTV References Dn 100 to 500 Flow controllers

Flow controller Flow rate 30 -> 1,000 l/s Maximum water height: 6 m Installation: upstream For heavy waste water & rain water Dual diaphragm models Manufacture • The HydroDB range is made of 316L stainless steel Description does not allow the • This deviceprecision as a vortexsame degreeitof regulation system, but is perfectly suitable for control of significant flow rates with low water height. Selection of device requires a • This typemodel. Please contact particular design for each our design office and stipulate the height (H) and flow rate (Q) desired. Half-pipe shaped channel for proper...