207
Membrane non-return valve
M system
Technical Data Sheet
socla.com
Description
This valve is designed for installations that generate significant water hammer. It is very reliable and quiet (no mechanical
moving parts, anti-incrustation closing system and seat). Ideal for booster pumps, sprinkler systems, motor or electric pump
units and compressed air circuits. Alternating operation. On membrane check valves, the opening set by the elasticity and the
thickness of the membrane is very progressive and can be obtained as a result of a few centimeters of W/C. Because of this,
this check valve is particularly suitable for variable flow pumps and pulsatory operation
• Operates in any position •C
losing system : flexible membrane (thick elastomer disc)
• Minimum head loss held in its center on a metal seat composed of a grid
• Does not generate hammering, very silent (flow equivalent to the nominal section)
• Sealing ensured by membrane’s self-closing.
207
Membrane non-return valve - M system
DN PFA PS in bar Weight
Cat. Ref.
” mm in bar L1 L2 G1 G2 Kg
3/8 12/17 16 16 16 16 16 4.3 149B2019 0,15
1/2 15/21 16 16 16 16 16 4.3 149B2100 0,85
3/4 20/27 16 16 16 16 16 4.3 149B2101 0,85
1 26/34 16 16 16 16 16 4.3 149B2102 1,30
1 1/4 33/42 16 16 16 16 16 I 149B2103 1,60
1 1/2 40/49 16 16 16 16 16 I 149B2104 2,60
2 50/60 16 16 16 16 16 I 149B2105 4,00
2 1/2 66/76 16 16 16 15 16 I 149B2106 6,40
3 80/90 16 16 16 12 16 I 149B2107 12,00
Important notice :
The indicated pressure for the different categories of fluids (L1/L2/G1/G2) is under no condition a guarantee of use.
Therefore, it is essential to validate the use of products under given operating conditions. The operating instructions
are available on our website www.socla.com or by requesting from our sales department.”
Technical features
Operating temperature -10 °C at 60 °C
Permissible operating pressure (PFA) in water See table above
Maximum permissible pressure (PS) other mediums See table above
Connection Female / Female, BSP
Mediums Clear liquids, gas
Nomenclature and materials
N° Description Materials EURO ANSI
1 O-ring EPDM
4
DN 3/8” Aluminium EN AC-AISi7Mg0.3
2 Body
DN 1/2” to 3” Cast iron/Epoxy EN-GJL-250 ASTM A 48 35 B 5
7
DN 3/8” Aluminium
3 Seat 6
DN 1/2” to 3” Stainless steel CB7Cu-1
DN 3/8” Aluminium EN AW-AICu4MgSi 1
4 Cup DN 1/2” to 2”1/2 Stainless steel X6Cr17 AISI 430
DN 3” Brass CuZn39Pb3 3 9
5 Membrane NR
6 Screw Stainless steel X5Cr-Ni18-10 AISI 304 2 8
7 Screw Stainless steel X5Cr-Ni18-10 AISI 304
8 Nut Stainless steel X5Cr-Ni18-10 AISI 304
9 Nut Galvanised steel
2
Approvals
PED 2014/68/UE
CPR 305/2011/UE
International construction Standards :
CE conformity directive 2014/68/UE
Thread connection NFE 03-005 ISO228
Application
Booster pumps, compressed air circuits, vacuum pumps.
Operation
Direction for use :
• Solid line: Valve completely open
P
M/WC
M/CE
DN
PSI
10
15
20
25
32
40
50
65
80
15 10
8 Opening pressure
10 7 DN Kv
8
6 in mm/CE
7 5 ζ
6 4
5 ” mm m3/H
3
4
3 2 3/8 12 1,95 8,8
2
1.5 1/2 15 3,1 8,5
1
3/4 20 5,8 7,7
.8 1 25 15,7 2,55
1 .7
.6 1 1/4 32 Near to 0 23,25 3,1
.5
.4 1 1/2 40 34,2 3,5
.3 2 50 54,6 3,4
2 1/2 65 86,3 3,85
.2
3 80 148,4 3
.15
.2 .3 .4 .5 .6 .8 1 1.5 2 2.5 3 4 5 6 7 8 10 15 20 25 30 40 50 60 80 100 150 200 DEBIT M3/H
.8 1 1.5 2 3 4 5 6 8 10 15 20 30 40 50 60 80 FLOW GALLON/MIN
100
150
200
250
300
400
500
600
700
207 - Headloss chart
3
Sizing
A B C
” mm mm mm
3/8 12/17 67,5 60
1/2 15/21 86 88
3/4 20/27 86 88
B
1 26/34 96 97,5
1 1/4 33/42 100 107,5
1 1/2 40/49 132 123,5
2 50/60 172 139,5
2 1/2 66/76 196 170
207
3 80/90 234 214
A
C
The descriptions and photographs contained in this product specification sheet are supplied by way of information only and are not binding.
Socla reserves the right to carry out any technical and design improvements to its products without prior notice. Warranty : All sales and contracts for sale are expressly conditioned on
the buyer’s assent to Socla terms and conditions found on its website at www.socla.com. Socla hereby objects to any term, different from or additional to Socla terms, contained in any
buyer communication in any form, unless agreed to in a writing signed by an officer of Socla.
Socla sas
365 rue du Lieutenant Putier • 71530 Virey-Le-Grand • France
Tel. +33 03 85 97 42 00 • Fax +33 03 85 97 42 42
contact@wattswater.com • www.socla.com
ISO 9001 version 2015 / ISO 18001
207-TS-FR-S-UK-07-19-Rev.0 © 2019 Socla
