Butterfly valve with sleeve
This valve with sleeve is available from DN32/40 to DN300, PN10/16/ASA150/JIS10K. It can respond to a wide variety of applications thanks to the numerous versions of sleeves (EPDM, NBR, FPM, PTFE, etc.) and discs (cast iron, stainless steel, aluminium bronze, duplex, etc.).
General use: water, sea water, air, hydrocarbons, acids etc.
GENERAL CHARACTERISTICS
– Design in accordance with NF EN 593.
– Tightness in both ways. NF EN 12266-1, NF EN 12266-2 – ISO 5208 – DIN 3230.
– Face to face in accordance with ISO 5752 serie 20, NF EN 558-1 serie 20.
– Sleeve with body in dovetail shape ensures a perfect assembling (for high vacuum we can stick it).
Aluminium reinforced sleeve: on request.
– Stem: high and low semi stem giving a high flow coefficient.
– Machined disc on periphery giving a low and regular torque.
– Stem unejectable.
– Bearing: stainless steel teflon lined.
– Dovetail type sleeve.
CONSTRUCTION MATERIAL
– Body: cast iron, ductile iron, steel, stainless steel on request.
– Disc: chromed cast iron, stainless steel 316, 316 L.
Possibility various alloys, bronze aluminium, 904 L (Uranus B6®), etc.
– Sleeve: heat EPDM, nitril, FPM (type Viton®), silicone, etc.
COATING
– Body: oven backed epoxy coated, food quality, thickness 150 μ, RAL 5019.
– Disc: chromed disc, possibility rilsan, etc.
WORKING CONDITIONS
– Maximum working pressure: 16 bar.
– Maximum temperature according to type of sleeve.
AGREEMENT AND TESTING
– Manufacture according to the requirements of the European directive 97/23/CE «Equipments under pressure» : category III modulate H.
– Test procedures are established according to NF EN 12266-1, NF EN 12266-2 – DIN 3230 ISO 5208.
CONNECTIONS
– TECFLY: between flanges PN 10 and PN 16: according to EN 1092-2.
Adjustable between flanges ASME B16.5, ASA 150.
– TECFLY LUG: standard: between flanges PN 10/16 up to DN 150, PN 10 for upper diameters.
Mounting between flanges ASA 150 and PN 16 for DN > 150 on request.
HANDLING POSSIBILITIES
Mounting plate in accordance with ISO 5211 for easy assembling of following operating systems :
– ductile iron triple use handle (see details on page 19),
– manual gear box with open / position indicator,
– single or double acting pneumatic actuator,
– electrical actuator 24, 48, 230/400 V single or three phases, 50 or 60 Hz
As only the sleeve and the disc are in contact with the fluid, the body is not subject to the constraints of the fluid being carried.