Applications of the valve manifold
- Shut-off, pressure equalising and vent valves for differential pressure measuring instruments
- For gaseous and liquid aggressive media that are not highly viscous or crystallising, also in aggressive environments
- Process industry: oil and gas, petrochemical, chemical industries, power generation, water and wastewater
Special features of the valve manifold
- Low-wear design due to non-rotating spindle tip in the bonnet
- Low torque and smooth operation of valve handle even at high pressure
- Standardised centre distances of 37 mm and 54 mm, suitable for WIKA differential pressure gauges and commonly used process transmitters
- Valve seat tested for leak tightness per ISO 5208 leak rate A
- Enhanced working safety due to blow-out proof bonnet design, especially in applications with high pressure loading
Description of the valve manifold
3-valve manifold, model IV3
The 3-valve manifold consists of two shut-off valves and one pressure equalising valve. The shut-off valves separate the process from the differential pressure measuring instrument. The pressure equalising valve enables the compensation between ⊕ side and ⊖ side to avoid one-sided overpressure during commissioning and operation.
5-valve manifold, model IV5
Compared to the 3-valve manifold, the 5-valve manifold is equipped with two additional vent valves. One vent valve per pressure side allows operators the targeted venting of one or both pressure sides of the measuring arrangement.
The non-rotating spindle tip reduces wear of the sealing elements. This results, particularly with frequent opening and closing, in a noticeable increase in the service life.
The gas metering pattern for 5-valve manifolds features two pressure equalising valves, two shut-off valves and one vent valve. This provides ideal differential pressure measurement and ensures stable measuring results.
The natural gas design, model IV52N, is available with soft-seat through-bore bonnets that enable both instrument shut-off and flow control.
On request, WIKA offers the professional assembly of valves and pressure measuring instruments and also other accessories into a ready-to-install instrument hook-up.
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