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Butterfly Valve EUROSTOP - Buried type - Reinforced version (Heavy Duty)

PRODUCT FAMILY
  • VALVES
MARKET / APPLICATION
  • Water
  • Valves and hydrants
RANGE / MARK ®
CHOICE OF PRODUCT
  • Buried installation
  • Flanged valve
ID
  • RSEVP27REM325
Short title
  • Butterfly Valve EUROSTOP - Buried type - Reinforced version (Heavy Duty)
Date
  • 09/11/2020
DN
  • 150 - 2000

Main features

Butterfly Valve EUROSTOP - Buried type - Reinforced version (Heavy Duty)See all features
Reference
 
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Butterfly Valve EUROSTOP - Buried type - Reinforced version (Heavy Duty)
PNDN valveReference
 mm 
10150
ConsultUS_r06733
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10200
ConsultUS_r06734
ConsultUS_r06734
10250
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10300
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ConsultUS_r06736
10350
ConsultUS_r06737
ConsultUS_r06737
10400
ConsultUS_r06738
ConsultUS_r06738
10450
ConsultUS_r06739
ConsultUS_r06739
10500
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10600
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10700
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10800
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10900
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101000
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101200
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101400
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101500
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101600
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101800
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102000
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16150
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16200
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16250
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16300
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16350
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16400
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16450
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16500
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16600
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16700
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16800
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16900
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161000
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161200
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161400
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161500
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161600
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161800
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162000
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25150
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25200
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25250
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25300
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25350
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25400
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25450
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25500
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25600
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25700
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25800
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25900
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251000
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251200
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251400
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251500
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251600
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251800
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252000
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Flanged Butterfly Valve (flange-flange) with joint in the automatic butterfly (JPA) with double eccentricity and long spacing between the flanges.

Ductile iron body and butterfly covered with blue epoxy powder 300 microns mini.

Range from DN150 to DN2000mm for pressures of PFA10 to 25 bar.

Field of application

Butterfly valves are isolating valves used on water supply networks, in the interconnections of network, in the factories, in pumping stations, on the general networks and on the fire protection networks in the industrial sites.

Butterfly valves are compatible with drinking water and raw water with grid filtration. They will be installed on water networks in factories, in valves chambers or buried.

Their main advantages are:

  • Low pressure loss
  • Good performance thanks to the choice of the materials, the coatings and the design
  • Easy operation per mechanism of the worm type/without end
  • Mechanisms equipped with a standardized flange carry-accessory for buried version and motorizable version

Range

The EUROSTOP butterfly valve is available in different configuration: manual, buried service, motorized and motorizable (for this three last configuration see the specific TDS).

References Buried Type

Material and coating

Item

Description

Material

Coating

1

Body

Ductile Iron GS500-7

Epoxy powder thickness mini 300 microns

2

Disc

Ductile Iron GS500-7

3

Sealing ring

EPDM

-

4

Retaining ring

Stainless Steel AISI 316L

-

5

Shaft

Stainless steel DUPLEX EN 10088 1.4462 (X2CrNiMoN 22-5-3)

-

6

Spindle

-

7

Bearings

Bronze EN 1982 CuSn12

-

8

Ring

Gunmetal EN 1982 CuSn5Zn5Pb5

-

9

Rear cover

Steel type SR235JR

Epoxy powder thickness mini 300 microns

10

Taper pin

Stainless steel EN 10088-3 X5CrNiCuNb 16-4 (630)

-

11

Lock nut

Gunmetal EN 1982 CuSn5Zn5Pb5

-

12

Sealing element

PTFE

-

13

Internal Screw

Stainless steel type A4

-

14

Body seat ring

Stainless steel EN 10088-2 X2CrNiMo 17,12,2 (316L)

-

15

External Screw

Stainless steel type A4

-

16

O-ring gasket

EPDM WRAS 60

-

Dimensions and mass

PN10 - Version with gearbox without mechanical position indicator but with watertight seal cover

DNGHIJKLMDRSMass clockwiseMass anti clockwise
mmmmmmmmmmmmmmmmmmmmmmkgkg
150210217142.9165143631502856262.53536
200230241171.0165170631803406262.54649
250250294215.3165200632304006262.56781
300270318239.3165228632504556262.586101
350290340258.3162253632605056262.5111123
400310371311.4162283633105656262.5139159
450330427342.4170308803406156662.5183223
500350452367.4170335803206706662.5215254
600390524421.42303901003007808462.5302319
700430594495.52994481004408958462.5453497
800470675569.530450812548010158862.5640793
90051072462330455812557011158862.5839861
1000550815707335615160620123011662.511931249
1200630909842420728200750145512162.518311831
14007101051953500838250850167514687.525122515
150075011021004500893250900178514687.528732873
160079011541056500958250950191514687.534703470
18008701331117972510583151000211520062.549654965
20009501526136782611734001050234524087.565606560

PN16 - Version with gearbox without mechanical position indicator but with watertight seal cover

DNGHIJKLMDRSMass clockwiseMass anti clockwise
mmmmmmmmmmmmmmmmmmmmmmkgkg
150210217142.9165143631502856262.53536
200230241171.9165170631803406262.54649
250250294215.3165200632304006262.56781
300270318239.3162228632504556262.588101
350290340280.4162260632605206262.5132150
400310407322.466290803105806662.5170216
450330427342.466320803406406662.5207252
500350470367.42303581003207158462.5265307
600390550451.52994201003008408462.5414476
700430627521.53044551254409108862.5543675
800470713602335513160480102511662.5830986
900510764653335563160570112511662.510211152
1000550815748420628200620125512162.514321479
1200630950852500743250750148514687.523572357
14007101125973725843315850168520062.535903590
150075011561077725933315900186520062.555825582
160079012291119725965315950193020087.549164916
18008701431127282610654001000213024087.569746974
20009501526136782611734001050234524087.583538353

PN25 - Version with gearbox without mechanical position indicator but with watertight seal cover

DNGHIJKLMDRSMass clockwiseMass anti clockwise
mmmmmmmmmmmmmmmmmmmmmmkgkg
150210219147.9165150631503006262.53943
200230219190.3165180631803606262.56373
250250297214.3162213632304256262.58893
300270321260.4162243632504856262.5120138
350290376290.4170278803105556662.5174213
400310425321.42303101003106208462.5221249
450330471371.42993351003406708462.5300280
500350498398.52993651003207308462.5348404
600390581474.53044231253808458862.5636636
70043066555233548016047096011662.5782975
800470713645420543200480108512162.511301243
900510788695420593200570118512162.513791693
1000550856756500660250620132014687.520912091
12006301024872725765315750153020062.533983400
140071011261016725878315850175520087.540674067
150075011861078826933400900186524087.560526052
160079013281169826988400950197524087.562004067

Gearbox type

Buried type PN10

DN

Gearbox AUMA type

Number of turns at 90°ISO 5210

Operating torque

mm

Nm

150

GS 63.3 – F10

12,75F 10

8

200

GS 63.3 – F10

12,75F 10

13

250

GS 63.3 – F10

12,75F 10

21

300

GS 63.3 – F10

12,75F 10

31

350

GS 63.3 – F12

12,75F 10

40

400

GS 63.3 – F12

12,75F 10

61

450

GS 80.3 – F14

13,25F 10

79

500

GS 80.3 – F14

13,25F 10

101

600

GS 100.3 – F16

13F 10

133

700

GS 100.3+VZ4.3 – F16

52F 10

52

800

GS 125.3+VZ4.3 – F25

52F 10

77

900GS 125.3+GZ160.3 – F2552F 10100
1000GS 160.3+GZ160.3 - F30110,5F 1065
1200GS 200.3+GZ200.3 - F30216F 1074
1400GS 250.3+GZ250.3 - F35212F 1493
1500GS 250.3+GZ250.3 - F35212F 14110
1600GS 250.3+GZ250.3 - F35212F 14130
1800GS 315+GZ30 - F40424F 1075
2000GS 400+GZ35 - F48432F 14117

Buried type PN16

DN

Gearbox AUMA type

Number of turns at 90°ISO 5210

Operating torque

mm

Nm

150

GS 63.3 – F10

12,75F 10

8

200

GS 63.3 – F10

12,75F 10

17

250

GS 63.3 – F10

12,75F 10

30

300

GS 63.3 – F12

12,75F 10

43

350

GS 63.3 – F12

12,75F 10

60

400

GS 80.3 – F14

13,25F 10

93

450

GS 80.3 – F14

13,25F 10

112

500

GS 100.3 – F14

13F 10

125

600

GS 100.3+VZ4.3 – F16

52F 10

59

700

GS 125.3+VZ4.3 – F25

52F 10

84

800

GS 160.3+GZ160.3 – F30

110,5F 10

64

900GS 160.3+GZ160.3 – F30110,5F 1083
1000GS 200.3+GZ200.3 - F30216F 1065
1200GS 250.3+GZ250.3 - F35212F 14104
1400GS 315+GZ30 - F40424F 1065
1500GS 315+GZ30 - F40424F 1077
1600GS 315+GZ30 - F40424F 1494
1800GS 400+GZ35 - F48432F 14126
2000GS 400+GZ35 - F48432F 14161

Buried type PN25

DN

Gearbox AUMA type

Number of turns at 90°ISO 5210

Operating torque

mm

Nm

150

GS 63.3 – F10

12,75F 10

13

200

GS 63.3 – F10

12,75F 10

29

250

GS 63.3 – F12

12,75F 10

45

300

GS 63.3 – F12

12,75F 10

71

350

GS 80.3 – F14

13,25F 10

98

400

GS 100.3 – F14

13F 10

122

450

GS 100.3+VZ4.3 – F16

52F 10

45

500

GS 100.3+VZ4.3 – F16

52F 10

59

600

GS 125.3+VZ4.3 – F25

52F 10

100

700

GS 160.3+GZ160.3 – F30

110,5F 10

70

800

GS 200.3+GZ200.3 – F30

216F 10

65

900GS 200.3+GZ200.3 – F35216F 1084
1000GS 250.3+GZ250.3 - F35212F 14115
1200GS 315+GZ30 - F40424F 1074
1400GS 315+GZ30 - F40424F 14110
1500GS 400+GZ35 - F48432F 14133
1600GS 400+GZ35 - F48432F 14153

Applicable Standards

Hydraulic test

Every single butterfly valve is subjected to hydraulic final test with the purpose of verifying the accordance with the prescriptions ISO 5208:

  • Body test at 1,5 time the PFA (open valve);
  • Seat test at 1,1 time the PFA (closed valve).

Product test

  • Control of manoeuvre torque (MOT and mST) as defined in the EN1074
  • Control of coating: test of thickness, holiday test, impact test, MIBK test

Conformity to the standards

Product:

  • EN 1074 – 1 and 2
  • EN 593
  • ISO 10631

Plant test:

  • ISO 5208

Flanges dimension:

  • ISO 5752 series 14

Flanges drilling:

  • EN 1092-2
  • ISO 7005-2

Suitability for potable water:

  • Italian CM 102 of 02/12/78
  • Conformity to foreign norms: KTW (Germany), WRC (U.K.), ACS (France)

Marking

On the body like EN19:

  • Nominal diameter in mm (DN);
  • Nominal pressure in bar (PN);
  • Type of ductile iron;
  • Manufacturer’s logo;
  • Model code;
  • Fusion date.

On the label like EN19:

  • Nominal diameter in mm (DN);
  • Nominal pressure in bar (PN);
  • Maximum operating pressure (PFA);
  • Closing direction;
  • Model code;
  • Manufacturing order, Order confirmation;
  • Manufacturer’s logo.

On the disc:

  • Nominal diameter in mm (DN);
  • Nominal pressure in bar (PN);
  • Type of ductile iron;
  • Manufacturer’s logo;
  • Model code.

The marking of the valves manufactured by Saint-Gobain refers to the EN 1074-2 and EN 19 international standards.

Markings are either integral markings, cast in the body, or markings made on plates, securely fixed to the body, in accordance with the EN 19 standard specifications.

Specifications EN19

Saint-Gobain valves process

Table1–Valve markings

Requirements

1

DN

EN 19 § 4.2.1

Mandatory markings

Shall be integral markings or on a marking plate

Integral

2

PN

Integral

3

Material

Integral

4

Manufacturer's name or trade mark

Plate

11

Reference to Standard

EN 19 § 4.3

Supplementary markings

Items 7 to 21 in Table 1 are optional

Integral

12

Melt identification

Integral

16

Quality test

Printed on body

18

Manufacturing date

Plate

21

Closing direction

Plate + sticker on body

Valve selection

The butterfly valves are generally used as isolating devices type on/off. In some particular case, in which there’s low differences of pressure and low flow rate variation can be used like regulating devices, considering the hydraulic parameters necessary to avoid the cavitation risk.

To do the right dimensioning of butterfly valve it’s necessary to know the followings parameters:

  • Upstream hydrostatic pressure (that is the hydrostatic pressure with valve in closed position)
  • The maximum speed in water pipe (generally expressed in l/s) or the nominal diameter and the project flow rate from which it is gained the speed V=Q/A

Moreover it’s necessary to control that the maximum speed in water pipe have to be equal or inferior to 5m/s, and the exercise temperature have to be between 0°C and 40 °C.

Hydraulic features

The head loss Δh are variable in function of valve open degree and can be calculated with the following expression:

∆h = ζ.v² 2.g

with Δh = head loss (m), ζ = head loss coefficient (dimensional), v = nominal speed (m/s), g = 9,81 (m/s²)

The head loss coefficient can be estimated from this diagram:

Determinates the head loss Δh it’s possible to calculate the flow rate Q in m3/h with the following expression (the same expression can be used to, having the project flow rate Q, to determinate the head loss Δh without using the head loss coefficient):

Q = ∆h 10.2 Kv

in which 10,2 is a corrective factor in meters, and Kv is the flow rate coefficient in m3/h, determinable from the following diagram in function of valve open degree:

Example: Valve DN600 mm - Δh = 3 m

From the diagram with valve open to 100% the coefficient Kv is 20000 m3/h. Using this date in the flow rate expression:

Q = 20000 × 3 10,2 = 10850 m3/h

Otherwise it’s possible to calculate the head loss with valve completely open, having the project flow rate Q, in function of DN, using the following diagram:

Cavitation

If the butterfly valve is used only like isolating device there’s not cavitation risk.

In the particular case in which it’s used like regulating device, this can be possible only respecting the following parameters:

  • The valve open degree have to be between 30° and 90° (valve completely open)
  • The downstream pressure P2 have to be: P2 ≥ 0,7 .P1 - 2,8 with P1 upstream pressure.

Instructions for use

Storage

The butterfly valve will have to be held (if possible) in covered places, the most possible protected from the sun (maximum allowable temperature 70°C in accordance to EN 1074), from the rain and generally from the atmospheric agents. Moreover it will have to be avoided that the seal of the same air valves come to contact with powder or earth.

Installation

The butterfly valves are generally installed with retaining ring mounted in the opposite way respect to the direction of flow rate to permit the substitution of gasket without dismounting the valve from pipeline. In any case it is possible to install the butterfly valve with flow rate in opposite direction and also, if required, in vertical position. We recommend to install the butterfly with the operating device on the hydraulic right side of pipeline.

It’s possible to install the butterfly valve both in chamber valve that underground (choosing the right configuration).

We recommend to insert a dismounting joint for the operation of maintenance.

Maintenance

The butterfly valve does not require a particular maintenance, all parts subjected to wear are perfectly auto-lubricating. In any case, if for a long time will be not used, it is necessary to evaluate the functioning of valve doing (at least one time for year) some manoeuvre of opening-closing.

All the maintenance operation have to be do after the total emptying of pipeline (no flow rate and pressure) to avoid every risk to the people during this operation.

In presence of particularly exercise condition or damage due to external cause, it will be necessary some maintenance operation. In this case the particular shape of EUROSTOP butterfly valve permits the simple gasket substitution without the dismounting of valve from pipeline (if the dismounting joint is present).

Accessories

To adapt the butterfly valves to the different exercise and installation conditions required, they can be equipped with particular accessories used in combination with control devices: please refer to data sheet for accessories.

The technical features in this document are not contractual and can be changed without preliminary notification due to the continuous technical progress of product.

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