® HYDROVEX® VHV / SVHV Vertical Vortex Flow Regulator

CSO/STORMWATER MANAGEMENT<br />

<br />

HYDROVEX <strong>VHV</strong> / S<strong>VHV</strong><br />

<strong>Vertical</strong> <strong>Vortex</strong> <strong>Flow</strong> <strong>Regulator</strong>

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HYDROVEX <strong>®</strong> <strong>VHV</strong> / S<strong>VHV</strong> VERTICAL VORTEX FLOW REGULATOR<br />

APPLICATIONS<br />

One of the major problems of urban wet weather flow management is the runoff generated after a heavy rainfall. During a storm<br />

event, uncontrolled flows may overload the drainage system and cause flooding. Sewer pipe wear and network deterioration are<br />

increased dramatically as a result of increased flow velocities. In a combined sewer system, the wastewater treatment plant will<br />

experience a significant increase in flows during storms, thereby losing its treatment efficiency.<br />

A simple means of managing excessive water runoff is to control excessive flows at their point of origin, the manhole. John<br />

Meunier Inc. manufactures the HYDROVEX <strong>®</strong> <strong>VHV</strong> / S<strong>VHV</strong> line of vortex flow regulators for point source control of stormwater<br />

flows in sewer networks, as well as manholes, catch basins and other retention structures.<br />

The HYDROVEX <strong>®</strong> <strong>VHV</strong> / S<strong>VHV</strong> design is based on the fluid mechanics principle of the forced vortex. The discharge is<br />

controlled by an air-filled vortex which reduces the effective water passage area without physically reducing orifice size. This effect<br />

grants precise flow regulation without the use of moving parts or electricity, thus minimizing maintenance. Although the concept is<br />

quite simple, over 12 years of research and testing have been invested in our vortex technology design in order to optimize its<br />

performance.<br />

The HYDROVEX <strong>®</strong> <strong>VHV</strong> / S<strong>VHV</strong> <strong>Vertical</strong> <strong>Vortex</strong> <strong>Flow</strong> <strong>Regulator</strong>s (refer to Figure 1) are manufactured entirely of stainless<br />

steel, and consist of a hollow body (1) (in which flow control takes place) and an outlet orifice (7). Two rubber "O" rings (3) seal<br />

and retain the unit inside the outlet pipe. Two stainless steel retaining rings (4) are welded on the outlet sleeve to ensure that there<br />

is no shifting of the "O" rings during installation and operation.<br />

1. BODY<br />

2. SLEEVE<br />

3. O-RING<br />

4. RETAINING RINGS<br />

(SQUARE BAR)<br />

5. ANCHOR PLATE<br />

6. INLET<br />

7. OUTLET ORIFICE<br />

<strong>VHV</strong><br />

S<strong>VHV</strong><br />

FIGURE 1: HYDROVEX <strong>®</strong> <strong>VHV</strong>-S<strong>VHV</strong> VERTICAL VORTREX FLOW REGULATORS<br />

ADVANTAGES<br />

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As a result of the air-filled vortex, a HYDROVEX <strong>®</strong> <strong>VHV</strong> / S<strong>VHV</strong> flow regulator will typically have an<br />

opening 4 to 6 times larger than an orifice plate. Larger opening sizes decrease the chance of blockage<br />

caused by sediments and debris found in stormwater flows. Figure 2 shows the discharge curve of a<br />

vortex regulator compared to an equally sized orifice plate. One can see that for the same height of water<br />

and same opening size, the vortex regulator controls a flow approximately four times smaller than the<br />

orifice plate.<br />

Having no moving parts, they require minimal maintenance.<br />

Submerged inlet for floatables control.<br />

The HYDROVEX <strong>®</strong> <strong>VHV</strong> / S<strong>VHV</strong> line of flow regulators are manufactured entirely of stainless steel,<br />

making them durable and corrosion resistant.<br />

Installation of the HYDROVEX <strong>®</strong> <strong>VHV</strong> / S<strong>VHV</strong> flow regulators is quick and straightforward and is<br />

performed after all civil works are completed.<br />

Installation requires no assembly, special tools or equipment and may be carried out by any contractor.

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FIGURE 2: DISCHARGE CURVE SHOWING A HYDROVEX <strong>®</strong> FLOW REGULATOR VS AN ORIFICE PLATE<br />

SELECTION<br />

Selecting a <strong>VHV</strong> or S<strong>VHV</strong> regulator is easily achieved using the selection chart found at the end of this brochure (refer to Figure<br />

3). Each selection is made using the maximum allowable discharge rate and the maximum allowable water pressure (head) retained<br />

upstream from the regulator. The area in which the design point falls will designate the required <strong>VHV</strong>/S<strong>VHV</strong> model. The maximum<br />

design head is calculated as the difference between the maximum upstream water level and the invert of the outlet pipe. All<br />

selections should be verified by a John Meunier Inc. representative prior to fabrication.<br />

Example:<br />

Maximum discharge 6 L/s (0.2 cfs)**<br />

Maximum design head 2m (6.56 ft.)<br />

Using Figure 3 model required is a 75 <strong>VHV</strong>-1<br />

** It is important to verify the capacity of the manhole/catch basin outlet pipe. Should the outlet pipe be >80% full at<br />

design flow, the use of an air vent is required.<br />

INSTALLATION REQUIREMENTS<br />

HYDROVEX <strong>®</strong> <strong>VHV</strong> / S<strong>VHV</strong> flow regulators can be installed in circular or square manholes. Figure 4 lists the minimum<br />

dimensions required for each regulator model. It is imperative to respect the minimum clearances shown to ensure ease of<br />

installation and proper functioning of the regulator.

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SPECIFICATIONS<br />

In order to specify a HYDROVEX <strong>®</strong> <strong>VHV</strong>/S<strong>VHV</strong> flow regulator, the following parameters must be clearly indicated:<br />

The model number (ex: 75-<strong>VHV</strong>-1)<br />

The diameter and type of outlet pipe (ex: ø 6", SDR 35)<br />

The maximum discharge rate (ex: 6.0 L/s [0.21 CFS])<br />

The maximum upstream head (ex: 2.0 m [6.56 ft]) *<br />

The manhole diameter (ex: ø 900 mm [ø 36"])<br />

The minimum clearance "H" (ex: 150 mm [6 in]) as indicated in Figure 4<br />

The material type (ex: 304 stainless steel, standard)<br />

* Upstream head is defined as the difference in elevation between the maximum upstream water level and the invert of the<br />

outlet pipe where the HYDROVEX <strong>®</strong> flow regulator is to be installed.<br />

PLEASE NOTE THAT WHEN REQUESTING A PROPOSAL, WE SIMPLY REQUIRE THAT YOU PROVIDE US WITH<br />

THE FOLLOWING INFORMATION:<br />

‣ project design flow rate<br />

‣ pressure head<br />

‣ chamber’s outlet pipe diameter and type<br />

Typical HYDROVEX <strong>®</strong> <strong>VHV</strong> model

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OPTIONS<br />

<strong>VHV</strong>-1-O<br />

(extended inlet for odor control)<br />

FV–<strong>VHV</strong><br />

(mounted on sliding plate for emergency bypass)<br />

<strong>VHV</strong> with Gooseneck assembly<br />

(manhole without clearance below regulator)<br />

FV–<strong>VHV</strong>-O<br />

(sliding plate with extended inlet)<br />

<strong>VHV</strong> with upstream air vent<br />

(applications where outlet pipe is > 80% full<br />

at peak flow)

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<strong>VHV</strong>/S<strong>VHV</strong> <strong>Vortex</strong> <strong>Flow</strong> <strong>Regulator</strong><br />

FIGURE 3

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TYPICAL INSTALLATION OF A VORTEX FLOW REGULATOR IN<br />

A CIRCULAR OR SQUARE/RECTANGULAR MANHOLE<br />

FIGURE 4<br />

CIRCULAR<br />

SQUARE<br />

Model<br />

<strong>Regulator</strong><br />

Diameter<br />

Minimum<br />

Manhole Diameter<br />

Minimum<br />

Chamber Width<br />

Minimum Outlet<br />

Pipe Diameter<br />

Minimum<br />

Clearance<br />

A (mm) [in] B (mm) [in] B (mm) [in] C (mm) [in] H (mm) [in]<br />

25 S<strong>VHV</strong>-1 125 [5] 600 [24] 600 [24] 150 [6] 150 [6]<br />

32 S<strong>VHV</strong>-1 150 [6] 600 [24] 600 [24] 150 [6] 150 [6]<br />

40 S<strong>VHV</strong>-1 200 [8] 600 [24] 600 [24] 150 [6] 150 [6]<br />

50 <strong>VHV</strong>-1 150 [6] 600 [24] 600 [24] 150 [6] 150 [6]<br />

75 <strong>VHV</strong>-1 250 [10] 600 [24] 600 [24] 150 [6] 150 [6]<br />

100 <strong>VHV</strong>-1 325 [13] 900 [36] 600 [24] 150 [6] 200 [8]<br />

125 <strong>VHV</strong>-2 275 [11] 900 [36] 600 [24] 150 [6] 200 [8]<br />

150 <strong>VHV</strong>-2 350 [14] 900 [36] 600 [24] 150 [6] 225 [9]<br />

200 <strong>VHV</strong>-2 450 [18] 1200 [48] 900 [36] 200 [8] 300 [12]<br />

250 <strong>VHV</strong>-2 575 [23] 1200 [48] 900 [36] 250 [10] 350 [14]<br />

300<strong>VHV</strong>-2 675 [27] 1600 [64] 1200 [48] 250 [10] 400 [16]<br />

350<strong>VHV</strong>-2 800 [32] 1800 [72] 1200 [48] 300 [12] 500 [20]<br />

Circular Manhole<br />

Square / Rectangular Manhole<br />

NOTE:<br />

In the case of a square manhole, the outlet pipe must be centered on the wall to ensure that there<br />

is enough clearance for installation of the regulator.

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INSTALLATION<br />

The installation of a HYDROVEX <strong>®</strong> regulator may begin once the manhole and piping are in place. Installation consists of simply<br />

sliding the regulator into the outlet pipe of the manhole and securing it to the wall with an anchor (supplied). John Meunier Inc.<br />

recommends applying a lubricant on the inner surface of the outlet pipe, in order to facilitate the insertion and the manipulation of<br />

the flow controller.<br />

MAINTENANCE<br />

HYDROVEX <strong>®</strong> regulators are designed and manufactured to minimize maintenance requirements. We recommend a periodic visual<br />

inspection every 3-6 months (depending on local flow and sediment conditions) in order to ensure that neither the inlet nor the outlet<br />

has become blocked with debris. The manhole housing the vortex regulator should be inspected and cleaned with a vacuum truck<br />

periodically, especially after major storm events.<br />

GUARANTY<br />

The HYDROVEX <strong>®</strong> line of <strong>VHV</strong> / S<strong>VHV</strong> regulators are guaranteed against both design and manufacturing defects for a period of 5<br />

years after sale. Should a flow regulator be found to be defective within the guarantee period, John Meunier Inc. will modify or<br />

replace the defective unit.<br />

John Meunier Inc.<br />

ISO 9001 : 2008<br />

Head Office<br />

4105 Sartelon<br />

Saint-Laurent (Quebec) Canada H4S 2B3<br />

Tel.: 514-334-7230 www.johnmeunier.com<br />

Fax: 514-334-5070 [email protected]<br />

Ontario Office<br />

2000 Argentia Road, Plaza 4, Unit 430<br />

Mississauga (Ontario) Canada L5N 1W1<br />

Tel.: 905-286-4846 www.johnmeunier.com<br />

Fax: 905-286-0488 [email protected]<br />

USA Office<br />

2209 Menlo Avenue<br />

Glenside, PA USA 19038<br />

Tel.: 412- 417-6614 www.johnmeunier.com<br />

Fax: 215-885-4741 [email protected]<br />

Revised: 2012-07-23