Pulp, Paper & Cellulose
V&A has a long history in the pulp & paper industry together with global leaders NAF and Stafsjö who themselves each have more than 100 years’ experience in the pulp & paper industry. V&A have extensive experience supplying equipment to Mondi Business Papers, Sappi Chemical Cellulose, Sappi Southern Africa, Sappi Fine Papers, Mpact and Nampak.
Naf Process Valve Applications
Valve Selection in General
M = Manual O = On/Off C = Modulating Control
Pulp Mill (Digestion Recovery Bleaching Causticizing)
M = Manual O = On/Off C = Modulating Control
| Position / Media / Mill Section | Conc. | M | O | V&A Solution | |
|---|---|---|---|---|---|
| Series | Type | ||||
| Alkaline Nearalization Reacot (Sulphite) | • | • | Stafsjö | HG Knife gate valve | |
| Black Liquor | • | • | Stafsjö | MV Knife gate valve | |
| Blow Pit | • | • | Stafsjö | MV Knife gate valve | |
| Brown Stock | 7-17% | • | • | Stafsjö | HG Knife gate valve |
| Digester Tailings-Knotter/Rejects | • | • | Stafsjö | HG Knife gate valve | |
| Dry Lime | • | • | Stafsjö | RKO Knife gate valve | |
| Fly Ash (Dry) | • | • | Stafsjö | SLV Knife gate valve | |
| Green Liqour | • | • | Stafsjö | HG Knife gate valve | |
| Green Liqour Dregs | • | • | Stafsjö | HG Knife gate valve | |
| Lime Mud Slurry | • | • | Stafsjö | HG Knife gate valve | |
| MC Stock from Storage to Bleach Tower | • | • | Stafsjö | HG Knife gate valve | |
| MC Stock Storage | • | • | Stafsjö | HG Knife gate valve | |
| MC Stock to Upflow Tower | • | • | Stafsjö | HG Knife gate valve | |
| Pulp Stock | 1-17% | • | • | Stafsjö | MV/HG Knife gate valves |
| Slaker | • | • | Stafsjö | HG Knife gate valve | |
| Turpentine | • | • | Stafsjö | HG Knife gate valve | |
| White liquor | • | • | Stafsjö | HG Knife gate valve | |
| Wood Chips | • | • | Stafsjö | HG Knife gate valve | |
Paper Mill (Coating Kitchen Stock Prep Paper Machine)
M = Manual O = On/Off C = Modulating Control
| Position / Media / Mill Section | Conc. | M | O | V&A Solution | |
|---|---|---|---|---|---|
| Series | Type | ||||
| Stock | 0-5% | • | • | Stafsjö | MV Knife gate valve |
| Stock Prep | 5-17% | • | • | Stafsjö | HG Knife gate valve |
| White Water | • | • | Stafsjö | MV Knife gate valve | |
Recycled Paper & Miscellaneous Applications
M = Manual O = On/Off C = Modulating Control
| Position / Media / Mill Section | Conc. | M | O | V&A Solution | |
|---|---|---|---|---|---|
| Series | Type | ||||
| HD Cleaners | • | • | Stafsjö | HG HG /RKO Knife gate valves | |
| Hydropulper Rejects | • | • | Stafsjö | HG HG /RKO Knife gate valves | |