{"id":18611,"date":"2025-05-28T11:59:47","date_gmt":"2025-05-28T16:59:47","guid":{"rendered":"https:\/\/blog.wika.com\/us\/?p=18611"},"modified":"2026-01-30T14:10:03","modified_gmt":"2026-01-30T19:10:03","slug":"flow-metering-solutions-for-pulp-and-paper-industry","status":"publish","type":"post","link":"https:\/\/blog.wika.com\/us\/products\/flow-products\/flow-metering-solutions-for-pulp-and-paper-industry\/","title":{"rendered":"Flow Metering Solutions for the Pulp and Paper Industry"},"content":{"rendered":"

Pulping applications create challenges for flow measuring. But with WIKA\u2018s wide range of primary flow elements and electromagnetic flow meters, there is a flow measurement solution for practically every aspect of the pulp and paper industry. <\/strong><\/p>\n

This article is a continuation of \u201cState of the Pulp and Paper Industry<\/a>\u201d.<\/em><\/p>\n

Wood preparation and pulping comprise several processes where the velocity of the media should be carefully monitored and controlled. Depending on the application, the media can be multiphase and\/or have a stream with solids and particles. The piping can be straight or bent, the flow can be even or disturbed, and the space for mounting flow meters is often limited.<\/p>\n

WIKA offers a variety of differential pressure (DP) flow measurement solutions for every type of application in a pulp and paper facility.<\/p>\n

HHR FlowPak\u00ae<\/sup> and ProPak\u2122: Accuracy, energy efficiency, no need for straight pipes<\/strong><\/h2>\n\n
\"FlowPak

FlowPak flow meter<\/p><\/div>\n \n

The HHR FlowPak<\/a> and HHR ProPak<\/a> flow meters are designed to accommodate fluid disturbances and swirl effects, thanks to a combination of innovative flow-straightening and conditioning technologies that have been proven by repeated<\/span><\/span> tests. Compared to other primary flow elements, these two flow meters significantly reduces permanent pressure loss, which translates into improved energy efficiency while avoiding issues like boiling and vaporization. What\u2019s more, the FlowPak\u00ae<\/sup> and ProPak\u2122 do not require a length of straight upstream and downstream piping, which add to their versatility. Not even two 90\u00b0 elbows present a problem.<\/p>\n

Wedge Flow Meter: Ideal for media with solids and particles<\/strong><\/h2>\n\n

FLC-WG wedge flow meter<\/p><\/div>\n \n

Pulp can be abrasive, viscous, and contain fragments that would get caught in the FloPak or ProPak\u2019s inlet and outlet holes. To measure the velocity of slurries and other particulate-laden media, use the FLC-WG wedge flow meter<\/a>. The wedge is positioned on one side so that solids easily pass through the restricted pipe section, and its throttle design results in much less wear and tear on the material than in orifice plates. This flow meter can be manufactured from a wide range of materials \u2013 from carbon steel to specialty alloys like Inconel 625 and Super Duplex \u2013 to handle all types of flow and process conditions. Its welded construct also ensures reliable flow measurement, even under extreme temperatures and pressure conditions.<\/p>\n

Cone Flow Meter: High performance in limited spaces<\/strong><\/h2>\n\n
<\/a>

Cone meter functional principle (click to enlarge)<\/p><\/div>\n \n

In applications with limited mounting space, use the FLC-FC cone flow meter<\/a>. It is well-suited for gaseous, liquid, and steam media, requires just a short length of upstream and downstream pipes, and is very resistant to common flow disturbances due to profile distribution. It has a wide turndown, which means it can measure very low as well as very high flow rates with excellent precision. In addition to being low-cost, WIKA\u2019s cone flow meter requires very little maintenance as it is self-cleaning, even when the gas stream contains liquids or particulate.<\/p>\n\n

FLC-RO-ST restriction orifice<\/p><\/div>\n \n

Restriction Orifices: To reduce the pressure or flow<\/strong><\/h2>\n

For certain flow measurement applications, such as for exhaust gas flow measurement or in a liquid disposal systems, a drop in pressure or the flow rate is desirable or even required. The FLC-RO-ST (single-step) and FLC-RO-MS (multi-step) restriction orifice<\/a> is inserted inside a pipeline. WIKA designs and optimizes our restriction orifices for each plant\u2019s operating conditions to avoid sonic and choke conditions, reduce the noise level, and prevent cavitation.<\/p>\n

\u00a0<\/h2>\n

Magnet Inductive Flow Meter: High accuracy at a low cost<\/strong><\/h2>\n\n

FLC-2300 electromagnetic flow meter<\/p><\/div>\n \n

From clean water to fibrous slurry, an electromagnetic flow meter<\/a> offers accurate conductive liquid measurement. Since it is not a primary flow element, which determines flow velocity using differential pressure, there is no pressure drop and zero maintenance; it is an especially economical flow measurement solution for large pipes and bi-directional flow measurement. WIKA\u2019s portfolio of electromagnetic flow sensors are available in different body versions, mounting configurations, and lining materials (for aggressive media). These flow meters communicate with external control systems when paired with the FLC-406 battery-operated digital signal converter<\/a> or the FLC-608 hybrid signal converter<\/a>.<\/p>\n

\u00a0<\/h2>\n

Flow Meters for Virtually Every Industrial Application<\/strong><\/h2>\n

WIKA USA offers a wide selection of flow metering solutions for almost every aspect of the pulp and paper industry:<\/p>\n