FLOEC Industrial Valves
Knife Gate Valves
FLOEC knife gate valves for pulp & paper, mining & steel, power and chemical industries, handling semi-solids, fly ash, chips, iron ore and fibrous pulps.
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Trusted Across Process Industries
Valves and engineered equipment from the AB Group supplied to leading oil & gas companies and government undertakings across power, steel and mining.
Product Overview
Built to Cut Through Solids and Seal Tight
FLOEC Knife Gate Valves are exclusively designed and manufactured as per MSS SP-81 to tackle the tough working conditions in Pulp & Paper, Mining & Steel, Power and Chemical Industries, dealing with semi-solids, fly ash, chips, iron ore, tea and coffee powders, food products like chips and mixtures, sugar and sugarcane juice, fibre-content pulps and similar media.
The knife-edged plate is made from stainless steel plates of different grades irrespective of the body material, with hard-faced plates to suit the application. During shutting, the knife-edged plate cuts off the solids and allows the plate to seal properly.
Knife gate valves also serve where space, cost, or maintenance time and money are limiting, and solutions are available for vacuum pipelines, utility services and effluent treatment plants. Soft sealing and metal-to-metal sealing options are offered, with hand wheel, pneumatic or hydraulic cylinder, or electrical actuator operation.
Materials include cast iron, S.G. iron, cast carbon steel, cast stainless steel of all grades, Alloy-20, CD4MCu, duplex and super duplex. Sizes range from 50 NB through 900 NB at MSS SP-81 150#.
Typical Applications
- Pulp & Paper
- Mining & Steel
- Power / Fly Ash
- Chemical
- Sugar & Food
- Effluent Treatment
- Vacuum Lines
Square TypeKey Features
Why Specify FLOEC Knife Gate Valves
Cuts Through Solids
Knife-edged plate shears semi-solids, chips and fibre so the gate seats cleanly on closing.
Stainless Knife Plate
Plates in stainless grades irrespective of body material, hard-faced where the media is abrasive.
Soft or Metal Seating
Soft sealing or metal-to-metal sealing to suit tight shut-off or abrasive duty.
Any Actuation
Hand wheel, gear box, pneumatic or hydraulic cylinder, or electrical actuator.
Compact Face-to-Face
Wafer, lugged or flanged designs where space, cost or maintenance time is limited.
Wide Material Range
Cast iron, S.G. iron, carbon steel, stainless steel, Alloy-20, CD4MCu, duplex and super duplex.
Technical Specification
Knife Gate Valves Data
| Size Range | 50 NB through 900 NB |
|---|---|
| Pressure Rating | MSS SP 81 – 150# / PN16 |
| Type | OS & Y type |
| End Connection | Wafer / Lugged / Flanged |
| Operation | Hand wheel / Gear box / Pneumatic cylinder / Electrical actuator |
| Port Opening | Full |
| Seat | Integral / Renewable metal to metal or soft seating |
| Disc | Solid knife type |
| Gasket & Packing | PTFE / Graphite / Asbestos etc. |
| MOC | Refer Material Chart ↓ |
| Design Code | MSS SP-81 |
| Testing | MSS SP-81 |
| Inspection | 3rd party / Client / Manufacturer |
Material of Construction
FLOEC Material Chart
Standard body, bonnet and trim combinations. Other materials are available on request; 600# and above are supplied with Stellite trim as standard.
| # | Body – Bonnet Material | Trim (Wedge / Seat / Disc) | Stem |
|---|---|---|---|
| 01 | Cast carbon steel ASTM A216 Gr. WCB / WCC | 13% Cr. S.S. | A182 F6 |
| 02 | Cast steel ASTM A352 Gr. LCB and LCC | A351 CF8 | A182 F304 |
| 03 | Low alloy steel ASTM A217 Gr. WC1, WC6, WC9, C12 | 13% Cr. S.S. | A182 F6 |
| 04 | Stainless steel 304 ASTM A351 Gr. CF8 | A351 CF8 | A182 F304 |
| 05 | Stainless steel 304L ASTM A351 Gr. CF3 | S.S. 304L CF3 | A182 F304L |
| 06 | Stainless steel 316 ASTM A351 Gr. CF8M | S.S. 316 CF8M | A182 F316 |
| 07 | Stainless steel 316L ASTM A351 Gr. CF3M | S.S. 316L CF3M | A182 F316L |
| 08 | Alloy 20 ASTM A351 Gr. CN7M | CN7M | UNS N08020 |
| 09 | Duplex SS CD4MCu / CuN / CD3MN | Duplex steel | UNS S32205 |
| 10 | Super duplex A890 Gr. 1A, 1B, 1C, 2A, 3A, 4A, 5A, 6A | Super duplex steel | UNS S32550 |
| 11 | Super alloy steel – Hastelloy Gr. B and C | Hastelloy B/C | Hastelloy B/C |
| 12 | Forged carbon steel – ASTM A105 | 13% Cr. S.S. | A182 F6 |
| 13 | Forged alloy steel – ASTM A182 F11, F22 | 13% Cr. S.S. | A182 F6 |
| 14 | Forged SS A182 F304 / 304L / F316 / 316L | F304/L / F316/L | F304/L / F316/L |
| 15 | SG / Ductile / C.I. of different grades | 13% Cr. SS / CF8 / CF8M | A182 F6 / F304 / F316 |
| 16 | Copper alloys of different grades | Cu. alloys / F304/L / F316/L | Cu. alloys / F304/L / F316/L |
Standards & Testing
Specified to Recognised Codes
Certified & Recognised
Accreditations You Can Verify
FLOEC valves are designed, manufactured and dispatched under an audited quality management system. Select a certificate to view the full document.
ISO 9001:2015Bureau Veritas Certification
Design, manufacture and dispatch of manual, electric and pneumatic operated industrial valves.
NSIC RegistrationThe National Small Industries Corporation
Government Purchase Enlistment Certificate for industrial valve manufacture.
Quality Mark AwardQuality Mark Trust
Certificate of Recognition in the Valve Manufacturers category.
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