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KNIFE GATE VALVES

KNIFE GATE VALVES
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KNIFE GATE VALVES

Product catalog summary
Overview
This document provides comprehensive details on various series of knife gate valves and check valves manufactured by C.M.O. These valves are designed for diverse industrial applications, including handling liquids with solid concentrations, dry solids, and high-pressure environments. The document outlines specifications, applications, and technical data for each valve series, along with available accessories and compliance with technical standards.
Series A - Knife Gate Valves
Product Description: Wafer style, uni-directional valve with a one-piece cast body, supporting high flow rates with low pressure drops.
Applications: Suitable for liquids with up to 5% solids concentration, used in industries like pulp and paper, mining, and sewage.
Technical Data: Sizes range from DN50 to DN2000, with standard flange connection DIN PN10.
Series AB - Knife Gate Valves
Product Description: Wafer style, bidirectional valve with sliding wedges.
Applications: Ideal for clean liquids or liquids with up to 35% low-density solids, used in effluent handling and sewage.
Technical Data: Similar size range and pressure specifications as Series A, with new high-pressure options.
Series C - Knife Gate Valves
Product Description: Flanged, unidirectional valve for dry solids.
Applications: Used for powders and solids in industries like mining and food processing.
Technical Data: Standard sizes from 125x125 to 1600x1600 mm, with a working pressure of 0.5 Kg/cm2.
Series D - Knife Gate Valves
Product Description: Flanged, unidirectional valve for high-pressure applications.
Applications: Suitable for clean liquids or liquids with solid particles in industries like pulp and paper, and chemical plants.
Technical Data: Sizes from DN50 to DN2000, with pressures up to PN100.
Series DT - Knife Gate Valves
Product Description: Wafer style, unidirectional valve with a double gate design.
Applications: Recommended for the paper industry, especially for handling impurities.
Technical Data: Sizes from DN80 to DN600 with standard flange connections.
Series E - Knife Gate Valves
Product Description: Wafer style, unidirectional valve with a round to square flow pass.
Applications: Used in abrasive applications like paper recycling.
Series F - Knife Gate Valves
Product Description: Wafer style, uni-directional valve for dry products like dust and powders.
Applications: Suitable for mining, chemical plants, and power plants.
Technical Data: Sizes from DN50 to DN1200 with varying working pressures.
Accessories & Actuators
All series offer a range of actuators and accessories, including mechanical limit switches, solenoid valves, and emergency manual actuators. Various sealing materials are available, such as Nitrile, Viton, and PTFE.
Technical Standards and Quality Assurance
All valves comply with directives 98/37/CE, 97/23/CE, and 94/9/CE. They are hydrostatically tested with water, and test certificates are available. Body and seat test pressures are specified as 1.5 and 1.1 times the maximum rated pressure, respectively.
Specifications:
The standard flange connection for the valves is according to DIN PN10, with other options available upon request. All valves undergo hydrostatic testing at CMO, with test certificates available.
Series U - Knife Gate Valves:
Wafer-style, unidirectional knife gate valves with a cast body composed of two bolted parts. Suitable for high concentration flows and solids, including granulated coal and food applications.
Series 3V-4V - Distribution Valves:
Includes 3 or 4 ways plug valves with T shape, L shape, and straight pass options, used for paper stock distribution.
See more

Catalog excerpts

KNIFE GATE VALVES-1

KNIFE GATE VALVES AND CHECK VALVES

 Open the catalog to page 1
KNIFE GATE VALVES-2

KNIFE GATE VALVES PRODUCT DESCRIPTION TECHNICAL DATA Wafer style, uni-directional knife gate valve. One piece integral cast body with guides to support the gate and seating wedges. High flow rates with low pressure drops. Several seat and packing materials available. Face to face dimension according CMO standard. Arrow in the body pointing the flow direction. Standard manufacturing sizes: From DN50 up to DN2000 Working pressures: From DN 50 to DN 125: 10 (kg/cm2) DN 150: 8 (kg/cm2) DN 200: 7 (kg/cm2) From DN 250 to DN 300: 5 (kg/cm2) From DN 350 to DN 400: 4 (kg/cm2) From DN 450 to DN 600: 3...

 Open the catalog to page 2
KNIFE GATE VALVES-3

KNIFE GATE VALVES PRODUCT DESCRIPTION TECHNICAL DATA Wafer style, bidirectional knife gate valve. One piece integral cast body with sliding wedges to provide bidirectional function. High flow rates with low pressure drops. Several seat and packing materials available. Face to face dimension according CMO standard. Standard manufacturing sizes: From DN50 up to DN2000 Working pressures: From DN 50 to DN 125: 10 (kg/cm2) DN 150: 8 (kg/cm2) DN 200: 7 (kg/cm2) From DN 250 to DN 300: 5 (kg/cm2) From DN 350 to DN 400: 4 (kg/cm2) From DN 450 to DN 600: 3 (kg/cm2) From DN 700 to DN 1200: 2 (kg/cm2) Flange...

 Open the catalog to page 3
KNIFE GATE VALVES-4

KNIFE GATE VALVES PRODUCT DESCRIPTION TECHNICAL DATA Flanged, unidirectional knife gate valve. One piece fabricated (welded) body with guides to support the gate and seating wedges. Several seat and packing materials available. Standard manufacturing flange connection and face to face dimension according CMO standard, but also can be fully adapted according to the customer pipeline dimensions. Standard manufacturing sizes: From 125x125 up to 1600x1600 mm Rectangular design also available Bigger sizes under request GENERAL APPLICATIONS This knife gate valve is appropriate for powders and solids,...

 Open the catalog to page 4
KNIFE GATE VALVES-5

KNIFE GATE VALVES PRODUCT DESCRIPTION TECHNICAL DATA Flanged unidirectional knife gate valve for high pressure applications One piece integral cast body with seating wedges and bolted bonnet. High flow rates with low pressure drops Several seat and packing materials available. Face to face dimension according to CMO standard. Arrow in the body pointing the flow direction Standard manufacturing sizes: From DN50 up to DN2000 (bigger sizes under request) Working pressures: From PN2.5 up to PN100 Each valve is designed according to the working conditions: For PN16 – Max. valve size DN1000 For PN25...

 Open the catalog to page 5
KNIFE GATE VALVES-6

KNIFE GATE VALVES PRODUCT DESCRIPTION GENERAL APPLICATIONS Wafer style, unidirectional knife gate valve. Cast body, composed by two bolted parts, with inside sliding guides to provide a smooth operation. Double gate design with two pneumatic actuators that provides full bore when opening. High flow rates with low pressure drops. Several seat and packing materials available. Face to face dimension according CMO standard. This knife gate valve is recommended for Paper Industry and especially for “rejects handling” (impurities contained in paper fibres like metal clips, staples, wires and others)....

 Open the catalog to page 6
KNIFE GATE VALVES-7

KNIFE GATE VALVES PRODUCT DESCRIPTION GENERAL APPLICATIONS Wafer style, uni-directional knife gate valve. One piece integral cast body with guides to support the gate and seating wedges. High flow rates with low pressure drops. Several seat and packing materials available. Face to face dimension according CMO standard. Arrow in the body pointing the flow direction: In this type of knife gate valve the arrow points the flow direction in “off seating” direction. This means that the flow forces the gate to separate from the seat This knife gate valve is appropriate for applications with dry products...

 Open the catalog to page 7
KNIFE GATE VALVES-8

KNIFE GATE VALVES PRODUCT DESCRIPTION TECHNICAL DATA Wafer style, bidirectional knife gate valve. Cast body monoblock type, with inside sliding guides to provide a smooth operation. High flow rates with low pressure drops. Several seat and packing materials available. Face to face dimension according CMO standard. Standard manufacturing sizes: From DN50 up to DN600 (bigger sizes under request) GENERAL APPLICATIONS Flange connection drillings: The standard flange connection is according to DIN PN10 & ANSI 150 Other flange connections are available under request. This knife gate valve is specially...

 Open the catalog to page 8
KNIFE GATE VALVES-9

KNIFE GATE VALVES PRODUCT DESCRIPTION TECHNICAL DATA Wafer style, uni-directional knife gate valve. Bidirectional (optional) One piece integral cast body with guides to support the gate, seating wedges and bolted bonnet. High flow rates with low pressure drops. Several seat and packing materials available. Face to face dimension according CMO standard. Arrow on the body pointing the flow direction. Standard manufacturing sizes: From DN50 up to DN1200 (bigger sizes under request) GENERAL APPLICATIONS This knife gate valve is appropriate for clean liquids and gases (without solids). If a small...

 Open the catalog to page 9
KNIFE GATE VALVES-10

KNIFE GATE VALVES PRODUCT DESCRIPTION Wafer style, bidirectional knife gate valve. Cast body, composed by two bolted parts, with inside sliding guides to provide a smooth operation. High flow rates with low pressure drops. Several seat and packing materials available. Face to face dimension according CMO standard. GENERAL APPLICATIONS This knife gate valve is appropriate for liquids with a solids concentration of maximum 20%. It is also recommended in applications under silos with dry and fine particles because of the way in which cuts the flow and high consistency mediums. Designed for a wide...

 Open the catalog to page 10
KNIFE GATE VALVES-11

CHECK VALVE PRODUCT DESCRIPTION TECHNICAL DATA Wafer style swing (also called tilting disc) check valve. Also flanged construction available under request. One piece integral cast body with conically shaped inside to allow easy flowing of solid particles. Face to face dimension according CMO standard. Arrow in the body pointing the flow direction. Standard manufacturing sizes: From DN50 up to DN1200 (bigger sizes under request) GENERAL APPLICATIONS This valve is appropriate for liquids with a solids concentration of maximum 5%. Designed for a wide range of applications such us: Flange connection:...

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