BAYARD is a company of

Hydraulic control valveHydrobloc system

2 Bayard APXA12001 - January, 20122

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 5208-2.• XG and XGS designs:

- Face-to-face dimensions according to standards EN 558-1 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 1092-2 and ISO 7005-2: 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.

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.)

Hydrobloc control valve

Angle pattern. Single chamber.

XGA design.

Globe pattern.Double chamber.

XG design.

Globe pattern.Single chamber.

XGS design.

Globe pattern.Single chamber.

XG design.

For a surge anticipating valve: higher maxi velocities might beacceptable, please consult us.

XGS design XG designm/s m/s

Permanent maxi velocity 4 5Exceptional maxi velocity 6 7

• Recommended velocity (VE)

Bayard APXA12001 - January, 2012 3

Hydrobloc control valve

• Head loss curves for fully open valve

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 m3/h which generates a head loss of 1 bar inside the valve.

3 - Hydraulic characteristics

Hydrobloc control 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 availa-ble 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 50 65 80 100 125 150 200 250 300 350 400 500 600 700 800 900 1000XGS Design Case 1 Mini flow rate 0.2 0.4 0.7 1 16 2.5 3.5 6.3 9.8 14 19 25 39 57 77 - 127 157

Maxi permanent flow rate 2 3.9 6.6 10.4 16 25 35 63 98 141 192 251 393 565 770 - 1272 1571Case 2 Mini flow rate 0.4 0.8 1.3 2 3.1 4.9 7.1 13 20 28 38 50 79 113 154 - 254 314

Maxi permanent flow rate 4 7.8 13.6 20 31.2 49 71 126 196 283 385 503 785 1131 1539 - 2545 3142

XG Design Case 1 Mini flow rate 0.2 0.4 0.7 1 1.6 2.5 3.5 6.3 9.8 14 - 25 - 57 - 101 - -

Maxi permanent flow rate 2.5 4.9 8.3 13 20 31 44 79 123 177 - 314 - 707 - 1257 - -Case 2 Mini flow rate 0.4 0.8 1.3 2 3.1 4.9 7.1 13 20 28 - 50 - 113 - 201 - -

Maxi permanent flow rate 5 9.8 17 25 39 61 88 157 245 353 - 628 - 1414 - 2513 - -

* VE (m/s) = Equivalent velocity: average velocity in the inlet section (DN)These values don’t apply to flow limiting, overspeed and differential functions.

Flow rate factor (Kv)

DN XGS design XG designKv Kv

50 30 4865 50 6780 69 102

100 103 172125 169 243150 181 339200 436 688250 608 978300 1012 1443350 1389 -400 1413 3168500 3147 -600 3172 5821700 5626 -800 - 9134900 9184 -

1000 9233 -

XGS design

10

Hea

d lo

ss in

m W

H

Flow rate in l/s

0

1

2

3

4

5

6

7

8

9

1 10 100 1000 10000

DN

50

DN

65

DN

80

DN

100

DN

125

DN

150

DN

200

DN

250

DN

300

DN

400

DN

600

DN

800

XG design

DN

150DN

125

DN

200

DN

250 DN

300

DN

350 DN

400

DN

500 DN

600

DN

700 DN

900

DN

100

0

1 10 100 1000 10000

Hea

d lo

ss in

m W

H

Flow rate in l/s

0

1

2

3

4

5

6

7

8

9

10D

N 5

0D

N 6

5 DN

80

DN

100

4 Bayard APXA12001 - January, 2012

Hydrobloc control valve

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 dimen-sions of the 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 .

H

ø B

Single chamber

Double chamber

(XG design)*

XGS and XG: Globe pattern main valve

A1

A2

C

Single chamber

Double chamber

ø B

H

XGA: Angle pattern main valve

CD

A

* Weight for main valves only.

XGS design XG designDN 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

50 230 145 195 80 10.2 173 238 84.5 - 12.1 -65 290 173 230 95 15 198 257 94.5 83 16.6 26.080 310 198 250 102 19.8 226 277 102 82 20.4 31.5100 350 226 270 120 27.1 265 302 120 91 32.2 46.5125 400 226 290 138 38.5 307 396 137 103.5 40.5 60.9150 480 226 290 153 45.7 351 443 152 100 64.9 94.8200 600 351 443 182 78.8 436 567 182 117 115 146.4250 730 436 580 212 132.7 524 609 212 125 153.5 219.6300 850 524 631 242 192.1 606 657 242 125 217.1 295.3350 980 606 657 278 247.4 - - - - - -400 1100 606 657 312 268.4 835 847 355 194.5 481 714500 1250 835 847 367 540 - - - - - - 600 1450 835 847 422.5 708 1085 1229 422.5 - 1205 -700 1650 1085 1229 480 1415 - - - - - -800 1850 - - - - 1355 1407 512.5 2050 -900 2050 1355 1407 562.5 2322 - - - - - -1000 - - Consult us - - - - - - -

DN A1 A2 B C mini. H Weight* Weight* mm mm mm mm mm Single chamber kg Double chamber kg

50 XGA 125 125 173 212 - 11.6 - 65 XGA 145 145 198 232 83 15.4 27.180 XGA 155 155 226 244 82 19.2 33.6

100 XGA 175 175 265 264 91 31.1 45.1150 XGA 225 225 351 380 100 69.4 99.6200 XGA 275 275 436 480 117 103.5 135.2250 XGA 325 325 524 529 125 143.7 209.8300 XGA 400 300 606 571 125 241.1 319.6

Bayard APXA12001 - January, 2012 5

Hydrobloc control valve Some examples...of the most common associated functions

Hydrostab pressure reducing valve Serie K1 10Automatically reduces a higher upstream pressure to a steady lower downstream pressure regardless of variations of flow and/or of upstream pressure.Adjustment ranges • Standard spring

P = 1 to 20 bar• Other

P = 0.2 to 2 barP = 15 to 25 bar (limited to 300XG and 400XGS)Other values, consult us.

• Other PN, consult us.

Hydrostab pressure sustaining / relief valve Serie K1 20Maintains a minimum upstream pressure, by either sustaining or relieving excess pressure to the downstream side.

Adjustment ranges• 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 / sustainingvalve - Serie K1 50Sustains a minimum upstream pressure and reduces thedownstream pressure to a constant lower value.

Adjustment ranges • 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 10Limits the flow rate to a preset value regardless of upstreamand downstream pressures.

Adjustment ranges • 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 20Closes at top level and fully re-opens at lower adjustable level, allowing water renewal in the reservoir (float pilot located in the reservoir).

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 10Closing at a constant and adjustable top level.Balances the inlet flow rate and the outlet flow rate tillapproximately 0.40 or 0.50 m below the top level.

Adjustment ranges • 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.

Small air valve kitITR KV007

Electric controlITR KE010

Electric controlITR KE010

Upstream-downstream function ITR KH007 + KH012

Pilot frost protectionITR KH037

Upstream pressure sustaining ITR KH007

Upstream pressure sustaining ITR KH008

Limit switchITR KV008

Non-return function ITRITR KH016

Non-return functionITR KH016

Altitude functionITR KH010

Savy upstream pressure sustaining (K370) + frost

protection ITR KH038

Upstream overpressurerelief ITR KH006

PN16 protection bydownstream pilot ITR KH014

Time - based electriccontrol - ITR KE027

Small air valve kitITR KV007

Twin filter circuitITR KH002

Motorised pilotITR KE016

Savy flow limiting (K380) +frost protection ITR KH039

2-level altitudeITR KH029

Upstream overpressurerelief ITR KH006

Hydro-vega float valve Serie K3 40Closes at a constant top level (float pilot located in thereservoir).

Adjustment ranges• According to the location of the pilot valve

in the reservoir.

Options• PN 16. • PN 25 with pilot protection.

6 Bayard APXA12001 - January, 2012

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

products we offer comprehensive solutions for the entire water cycle. From

hydrants to butterfly valves. From the knife-gate valves to the needle

valves. Our experience, innovative technology, global expertise and

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 47

69881 Meyzieu cedex France

Tél. + 33 (0)4 37 44 24 24

Fax + 33 (0)4 37 44 24 25

Site: www.bayard.fr

E-mail: bayard@talis-group.com

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