Check Valves
Non-return valves for water, HVAC and industrial pipelines. Three series: SS316 double-disc flanged (5116), cast iron NBR ball flanged (5125), and cast iron NBR ball threaded (5142). DN32–DN200.
📘 MT 2026 Catalogue
Non-return valves in stainless steel and cast iron
MT check valves prevent reverse flow in water, HVAC and process pipelines. Three product families cover flanged large-diameter service and threaded small-diameter installations, all in corrosion-resistant materials with EPDM or NBR sealing.
⬜ Series 5116
Double Disc
AISI 316 · Flanged PN16 · DN50–DN200 · Low cracking pressure
🟡 Series 5125
NBR Ball — Flanged
Cast iron body · NBR ball · Flanged PN16 · DN50–DN100
🔵 Series 5142
NBR Ball — Threaded
Cast iron · NBR ball · BSP threaded PN10 · DN32–DN50
Series 5116 uses a dual-plate disc design that provides lower pressure drop than swing-type valves and is suitable for vertical or horizontal installation. Series 5125 and 5142 NBR ball check valves are ideal for water and light industrial fluids where moderate back-pressure resistance is required.
Body / Closure Materials
AISI 316 (5116)
GG25 Cast Iron (5125/5142)
NBR Seat
EPDM O-ring (5116)
Connections & Sizes
Flanged PN16 (5116/5125)
BSP Threaded PN10 (5142)
DN32–DN200
Application
Water supply
HVAC returns
Pumping systems
Industrial process
Certifications
CE
PED 2014
EN
1092
1092
EN 1092
Series
14 references
SS316 Double Disc Check Valve Flanged PN16 DN50 2"
REF. 5116050
AED100.28
SS316 Double Disc Check Valve Flanged PN16 DN65 2½"
REF. 5116065
AED120.62
SS316 Double Disc Check Valve Flanged PN16 DN80 3"
REF. 5116080
AED163.27
SS316 Double Disc Check Valve Flanged PN16 DN100 4"
REF. 5116100
AED204.87
SS316 Double Disc Check Valve Flanged PN16 DN125 5"
REF. 5116125
AED272.85
SS316 Double Disc Check Valve Flanged PN16 DN150 6"
REF. 5116150
AED399.27
SS316 Double Disc Check Valve Flanged PN16 DN200 8"
REF. 5116200
AED657.58
Ball Check Valve NBR Ball Flanged End DN50 PN16
REF. 5125050
AED279.83
Ball Check Valve NBR Ball Flanged End DN65 PN16
REF. 5125065
AED325.80
Ball Check Valve NBR Ball Flanged End DN80 PN16
REF. 5125080
AED539.59
Ball Check Valve NBR Ball Flanged End DN100 PN16
REF. 5125100
AED587.42
Check Valve Threaded NBR Ball PN10 1¼"
REF. 5142032
AED142.38
Check Valve Threaded NBR Ball PN10 1½"
REF. 5142040
AED152.23
Check Valve Threaded NBR Ball PN10 2"
REF. 5142050
AED175.93