Needle Monoflange Valve

Needle Monoflange Valve

Model no. MMD

One piece compact solutions designed to replace conventional multi-valve installations in measuring systems with reduced number of leak paths.

Needle Monoflange Valve



Needle valves have no ball and are mainly used for flow metering and damping pressure fluctuations as instrument valves. These valves are designed to replace conventional multi-valve installations into a single manifold reducing leaking points and allowing easy and quick installation in vertical or either in horizontal position with considerable cost savings.



Construction One-piece flange
Leakage rate Bubble tight shut-off
Stem retention Anti blow-out stem
Materials EN 10204 3.1
Materials in Sour Service to NACE MR0175, MR0103, ISO 15156,
Non-destructive testing (NDT) to API 6D, ASME B16.34
Design features Compact design with double block & bleed assemblies with minimal potential leak paths
Non rotating needles
Anti-tamper device
Combined needles and outside screw and yoke (OS&Y)
Low emission packing
Metal seated
Vent 1/2” NPTF
Valve operation Hand-wheel, T-Lever
Valve testing API 6D, ASME B16.34, API 598

Applicable standard ASME B16.5, ASME B16.34, API 6A, API 6D
Pressures range ASME class 150 to 2500
API 6A class 2000 to 15000
Size range DN15 (1/2") to DN75 (3")
End connections ASME B16.5 Flanged RF, RTJ
ASME B1.20.1 Threaded NPT (F/M)


Fire Safe Optional API 607/BS6755
Area Classification ATEX 94/9/EC
Pressure Equipment Directive PED 97/23/EC


  • Low Temperature and Low Alloy Carbon Steel
  • Stainless steel, Duplex and Super Duplex
  • Nickel alloys
  • Titanium
  • Bronze