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

Application / MediaMOCV&A Solution
SeriesType
Bleach Tower DilutionRichterNK PFA/PTFE Lined Butterfly Valve
Chemical handlingRichterLined Ball, Plug, Butterfly & Safety Valves
Chlorine (Dry)RichterRichter SPV PTFE Sleeved Plug Valve
Chlorine (Wet)RichterLined Ball, Plug, Butterfly & Safety Valves
Chlorine DioxideNAFDuball DL Ball Valves (Titanium)
CondensateNAFTorex H.P. Butterfly
NAFTriball 3 Piece Ball Valve
NAFSetball SF Ball Sector Valve
NAFDuball DL Ball Valve
Demin WaterRichterLined Ball, Plug, Butterfly & Safety Valves
FiltrateNAFTorex H.P. Butterfly
Liquor Black (Weak)NAFTorex H.P. Butterfly
Liquor Black < 45%NAFTorex H.P. Butterfly
NAFSetball SF Ball Sector Valve
NAFDuball DL Ball Valve
Liquor Black > 45%NAFSetball SF Ball Sector Valve
NAFDuball DL Ball Valve
Liquor GreenNAFDuball DL Ball Valve
Liquor WhiteNAFDuball DL Ball Valve
Liquor White (Weak)NAFTorex H.P. Butterfly
Pulp High Consistency >5%NAFDuball DL Ball Valve
Pulp Low Consistency < 3%NAFTorex H.P. Butterfly
Pulp Stock < 18%StafsjöHG Knife Gate Valve
Pulp Stock < 7%StafsjöMV Knife Gate Valve
Safety ValvesBesaSafety Valves
Sodium ChlorateRichterLined Ball, Plug, Butterfly & Safety Valves
Sodium HypochloriteRichterLined Ball, Plug, Butterfly & Safety Valves
Spent AcidRichterLined Ball, Plug, Butterfly & Safety Valves
Steam ControlNAFSetball
Steam High Pressure 90bar @ 500deg.cHP ValvesHP Valves Gate, Globe & Check
Steam Low PressureNAFTorex H.P. Butterfly
ZwickZwick Tri-Con (TOV)
Steam Medium Pressure 18 bar @ 350 deg.cZwickZwick Tri-Con (TOV)
Steam, Vapors, Gases & LiquidsBesaSafety Valves
Sulphur (Molten)RichterRichter SPV PTFE Sleeved Plug Valve
Sulphur DioxideRichterLined Ball, Plug, Butterfly & Safety Valves
Sulphuric AcidRichterLined & Sleeved Plug Valves
Washer Filtrate (Chlorinated)RichterNK PFA/PTFE Lined Butterfly Valve

Pulp Mill (Digestion Recovery Bleaching Causticizing)

M = Manual    O = On/Off    C = Modulating Control

Position / Media / Mill Section Conc.MOV&A Solution
SeriesType
Alkaline Nearalization Reacot (Sulphite)StafsjöHG Knife gate valve
Black LiquorStafsjöMV Knife gate valve
Blow PitStafsjöMV Knife gate valve
Brown Stock7-17%StafsjöHG Knife gate valve
Digester Tailings-Knotter/RejectsStafsjöHG Knife gate valve
Dry LimeStafsjöRKO Knife gate valve
Fly Ash (Dry)StafsjöSLV Knife gate valve
Green LiqourStafsjöHG Knife gate valve
Green Liqour DregsStafsjöHG Knife gate valve
Lime Mud SlurryStafsjöHG Knife gate valve
MC Stock from Storage to Bleach TowerStafsjöHG Knife gate valve
MC Stock StorageStafsjöHG Knife gate valve
MC Stock to Upflow TowerStafsjöHG Knife gate valve
Pulp Stock1-17%StafsjöMV/HG Knife gate valves
SlakerStafsjöHG Knife gate valve
TurpentineStafsjöHG Knife gate valve
White liquorStafsjöHG Knife gate valve
Wood ChipsStafsjöHG Knife gate valve

Paper Mill (Coating Kitchen Stock Prep Paper Machine)

M = Manual    O = On/Off    C = Modulating Control

Position / Media / Mill Section Conc.MOV&A Solution
SeriesType
Stock0-5%StafsjöMV Knife gate valve
Stock Prep5-17%StafsjöHG Knife gate valve
White WaterStafsjöMV Knife gate valve

Recycled Paper & Miscellaneous Applications

M = Manual    O = On/Off    C = Modulating Control

Position / Media / Mill Section Conc.MOV&A Solution
SeriesType
HD CleanersStafsjöHG HG /RKO Knife gate valves
Hydropulper RejectsStafsjöHG HG /RKO Knife gate valves
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