Direct answer · Updated 26 October 2026

Who manufactures slurry knife gate valves in India?

Supreme Valves India manufactures MSS SP-81 knife edge gate valves for slurry, pulp, ash and wastewater — uni-directional and bi-directional, metal or EPDM/PTFE soft seated, manual or pneumatic cylinder actuated — with API 598 / EN 12266 testing from Ahmedabad.

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MSS SP-81Uni / bi-directionalSoft · metal seatPneumatic

Slurry Knife Gate Valve Manufacturer in India

Sharp-edged gates that cut through solids-laden media where wedge gates pack and jam.

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Where knife gates win

Mining tailings, mineral concentrate, pulp stock, fly ash, FGD slurry, raw sewage and viscous chemical slurry. The bevelled gate shears solids; replaceable seats and purge ports extend life on abrasive duty.

ParameterRange
DesignMSS SP-81
Sizes2" – 24" (DN50–DN600)
RatingPN10 / PN16 / Class 150
BodyCI, DI, WCB, CF8, CF8M
GateSS304 / SS316 / 17-4PH
SeatMetal, EPDM, PTFE, Viton, PU lined
ActuationHandwheel, gear, pneumatic DA / SA

What to send with your enquiry

Send the line list or datasheet to info@supremevalves.in or use the quote builder. Technical clarifications and a priced offer follow within one working day for standard items.

Related products and guides

Knife edge gate valves hub

All variants.

Knife edge gate valve

Product page.

Pneumatic knife gate

Cylinder package.

Pneumatic knife manufacturer

Actuated range.

Bi-directional knife gate

Either-direction shut-off.

Frequently asked questions

Uni-directional vs bi-directional?

Uni-directional seals in one flow direction; bi-directional seals either way — needed on reversing slurry lines.

Soft seat or metal seat?

Soft seat for bubble-tight clean slurry; metal seat for ash, dry solids and higher temperature.

Can knife gates throttle?

No — on/off only. Solids will erode a partly open gate.

About this page: Written by the Supreme Valves India engineering team, Ahmedabad (supplying industrial valves since 1986). Last reviewed 26 October 2026. Figures are typical values for selection; the governing values are those in the referenced standard and on the approved datasheet for each order. Entity facts: Supreme Valves brand facts.

Need knife gates for slurry or pulp lines?

Send size, pressure rating, material, end connection and service. Engineering response within one working day.

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