A SERIES0 pages
A SERIESt
KNIFE-GATE VALVES
23/04/2013
UNIDIRECTIONAL WAFER Knife Gate Valve
t
‐Unidirectional wafer‐design knife gate valve.
‐One‐piece cast body with guides to support gate and seat wedges.
‐Provides high flow rates with low pressure drop.
‐Various seat and packing materials available.
‐Face‐to‐face dimension in accordance with CMO standard.
‐An arrow is marked on the body indicating the flow direction.
t
General Applications:
‐This knife gate valve is suitable for liquids that contain a maximum of
5% suspended solids. If it is used for dry solids in gravity feed
applications it should be installed with the arrow on the body pointing
in the opposite direction to the flow. Designed for applications such as:
‐Paper Industry
‐Mining
‐Silo emptying
‐Chemical plants
‐Pumping
‐Food Industry
‐Sewage treatment
t
Sizes: ND50 to ND2000 (larger sizes on request).
t
Working Pressure: ‐ND50 to ND150: 10kg/cm2
‐ND200: 8kg/cm2
‐ND350 to ND400: 5kg/cm2
‐ND250 to ND300: 6kg/cm2t
2
2
‐ND450 to ND600: 3kg/cm t
‐ND700 to ND1400: 2kg/cm
‐These pressures must be applied to the valve in the direction of the
arrow marked on the valve’s body. Due to the valve’s design with gate
support guides, 30% of these pressures can be applied in the opposite
direction to the arrow.
t
Standard Flanges:
DIN PN10 and ANSI B16.5 (class 150)
t
Other Common Flanges: DIN PN 6
DIN PN 16
DIN PN25
BS "D" and "E" ANSI 150
Others on request:
Fig. 1
Directives: Machinery Directive: DIR 2006/42/EC (MACHINERY)
Pressure Equipment Directive: DIR 97/23/EC (PED) ART.3, P.3
Potential Explosive Atmospheres Directive: DIR 94/9/EC (ATEX) CAT.3 ZONE 2 and 22 GD
For further information on categories and zones please contact the CMO Technical‐
Commercial Dept.
t
Quality Dossier:
‐ All valves are tested hydrostatically at CMO and material and test certificates can be provided.
‐ Body test = working pressure x 1.5.
‐ Seat test = working pressure x 1.1.
C.M.O.
Amategui Aldea 142, 20400 Txarama‐Tolosa (SPAIN)
TEC‐A.EN05
Tel. Nacional: 902.40.80.50 Fax: 902.40.80.51 / Tel. Internacional: 34.943.67.33.99 Fax: 34.943.67.24.40t
cmo@cmo.es http://www.cmo.estttttttttttttttttttttttttttttttttttttttttPaget1