- MSS SP 81
- Bi-directional positive shutoff
- Heavy slurry & scaling applications
- Electro polished gate
- Full stainless steel construction
- Cylinder recommended above 12″
- Purge ports standard on all sizes
North Port SER400 – O-Port Thru Gate Valve
The North Port Series 400 O-Port Thru Gate Valve is designed to deliver positive bi-directional shutoff for heavy slurry and scaling applications. Suitable for heavy duty and scaling applications such as : high density pulp stock isolation, black liquor and pulp stock, concentrated black liquor (solids up to 85%), phosphoric acid, green liquor, white liquor, and more.
The Series 400 design includes a special electro-polished gate with machine beveled edge standard for severe services. The 2 body halves are precision-machined to ensure close tolerances to the gate to eliminate solid build up between components and ensure proper cycling. Purge ports are standard on all sizes.