html_m4b2e72b4
html_m5c137e8d
html_m54b1737d
html_54d3190b
html_m4b2e72b4
html_m5c137e8d
html_m54b1737d
html_54d3190b
CHECK VALVES AND STRAINERS

Check valves

Product family
Pipeline protection

This check valve is designed to equip supply hydraulic networks and pumping stations. It has been articulated swing lying on an inclined seat and an integral passage in large opening. The design of the obturator insures the tightness at low-counter pressure and a silent functioning.

Range

The check valves are available from DN40 to DN500, at PFA 16 bars, drilling ISO PN10 or ISO PN16.

Technical design

html_m5c137e8d
html_m54b1737d
html_54d3190b
40 150 150 100 90 180 164 10 16 11 RCA40FACHM
50 165 165 100 90 200 164 10 16 14 RCA50FACHM
60 185 185 111 98 240 186 10 16 17 RCA60FACHM
65 185 185 111 98 240 186 10 16 17 RCA65FACHM
80 200 200 125 105 260 200 10 16 21 RCA80FACHM
100 220 220 140 125 300 225 10 16 29 RCB10FACHM
125 250 250 175 157 350 304 10 16 42 RCB12FACHM
150 285 285 195 155 400 340 10 16 60 RCB15FACHM
200 340 340 251 205 500 400 10 92 RCB20FABHM
200 340 340 251 205 500 400 16 92 RCB20FAAHM
250 400 400 290 230 600 464 10 145 RCB25FABHM
250 400 400 290 230 600 464 16 145 RCB25FAAHM
300 455 455 312 255 700 504 10 175 RCB30FABHM
300 455 455 312 255 700 504 16 175 RCB30FAAHM
350 505 520 427 344 800 585 10 300 RCB35FABHM
350 505 520 427 344 800 585 16 300 RCB35FAAHM
400 565 580 461 372 900 660 10 395 RCB40FABHM
400 565 580 461 372 900 660 16 395 RCB40FAAHM
500 670 715 530 424 1100 770 10 613 RCB50FABHM
500 670 715 530 424 1100 770 16 613 RCB50FAAHM

Features

Material and coating

Item Designation Quantity Material Coating
1 Body 1 Ductile iron GJS 400-15 Powder Epoxy 250µ Mini
2 Cover 1 Ductile iron GJS 400-15 EPDM
3-3a Disc 1 Ductile iron GJS 400-15  
3b Axis 1 Stainless steel X5CrNi18-10  
4 Plug screw 1 Brass Cu Zn39Pb3  
5 Washer 1 Copper  
6-7-8 Bolts 2 Stainless steel A2-70  
9 Cover gasket 1 EPDM  
10 Seat 1 Brass Cu Zn39Pb3  

Note: available in reinforced version (please contact us)

Clapet_non_retour_battant_nom
Clapet_non_retour_battant_nom

Particularities

Obturator

The obturator moulded in EPDM is fixed with elastic connection on the articulation axis ; it lies on the inclined seat, folded in the body.

The low inertia of the obturator and the elastomer contact on bronze give that check valve a rapid and silent functioning.

Hydraulic characteristics

Performances

Maximal flowing speed recommended: 4 m /s

Headloss

Q = Kv. √∆ p

DN 40 50 60 65 80 100 125 150 200 250 300
kV 101 158 267 267 404 632 987 1422 2530 3950 5700
Clapet_non_retour_battant_ecoulement

Conformity to Standards

  • Length between flanges: NF EN 558-1 Série 48 - ISO 5752 série 48
  • Drilling template of flanges: NF EN 1092-2 - ISO 7005-2
  • Tightness-external/internal: NF EN 1074-3
  • Tightness 24 bars (NFE 29311)
  • Tightness of the obturator to a counter-pressure of 17,6 bars (NFE 29311)
  • Tightness low pressure of the obturator to a minimum pressure of 0,15 bar (0,5 bar fixed to the Standard)

The components in contact with drinking water have alimentary certificates. EPDM has W270 quality with KTW and WRAS certification and epoxy Resicoat coating too.

Marking

According to EN19.

On the body (foundry):

  • Material for body (JS 1030)
  • DN / PN
  • Direction for the fluid
  • Reference to EN 1074-3
  • Mark production

on the label: see the label

Clapet_non_retour_battant_marquage

Installation, operating, maintenance

The check valve can be set up horizontally, or vertically flowing direction to the top, respecting the set up direction (indicated by the direction sign).

The set up on pipe is made with a dismantling joint and tightness joints flange/flange.

The covering cap, located on the upper part, allows to check the state of the obturator, may be to replace it without any removal of the body.