Mechanical Supplies
Double Regulating Valves
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About
- Oventrop "Hydrocontrol" static balancing valves with a lockable, infinitely adjustable presetting and two Classic measuring valves for differential pressure readings. The family covers DN 15-50 in bronze (VTR threaded, CS grooved, MTR venturi) and DN 20-400 flanged or grooved in cast iron (VFC, VGC, F/G), so a single valve type runs from a fan coil branch to a main riser.
Application
Fitted on the return of every branch, riser and terminal circuit so the commissioning engineer can proportionally balance the system with a differential pressure meter across the two test points. The memory stop holds the setting when the valve is closed for service and reopened, without it the index circuit starves while circuits nearest the pump over-flow, the classic reason top-floor fan coils never reach setpoint.
Standards & Reference 6 cited
EN 12266-1
Pressure testing of metallic valves: the shell and seat tests a valve passes before it leaves the factory.
EN 1092-2
The cast-iron counterpart to EN 1092-1, for flanges on cast-iron valves and fittings.
EN 558
Face-to-face and centre-to-face lengths for valves in pipeline systems: the dimension that decides whether a replacement valve fits the existing gap.
VDI 2073
German guidance on hydraulic circuits in heating and cooling systems: the basis for how a hydronic network is balanced.
NSF/ANSI 61 Annex G
The lead-content limit within the drinking water standard: the basis of the 'lead-free' designation for potable water components.
PN 16 / PN 25
Available in nominal pressure ratings of 16 and 25 bar, which sets both the flange drilling and the rated body pressure.
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