D641J Pneumatic butterfly valve flange type introduction
D641J Pneumatic butterfly valve flange type product design, reasonable, simple structure, small volume, light weight, 90 degrees of rotation open and close quickly, operating torque is small, easy to operate, save force dexterity.D641J Pneumatic butterfly valve flange type can be easily installed and maintained in any location.The sealing element can be replaced, and the sealing performance is reliable to achieve zero leakage of two-way sealing, the sealing material is resistant to aging, corrosion and long service life.

D641J Pneumatic butterfly valve flange type has good flow control characteristics.D641J Pneumatic butterfly valve flange type is not only widely used in petroleum, gas, chemical industry, water treatment and other general industries, but also used in the cooling water system of qianthermal power station.

D641J Pneumatic butterfly valve specification
Body: Cast Iron, Ductile Iron, Aluminum Stainless Steel,CF8,CF8M,CF3M
Disc: Stainless Steel CF3M,CF3,CF8M, Nylon Coated Ductile Iron, Aluminum Bronze, Double Stainless Steel,2507,1.4529
Stem: 416 Stainless Steel,304 Stainless Steel,316 Stainless Steel
Seats: NBR,EPDM,PTFE,VITON, FKM* Polyurethane
Size: 2″ – 40″ (25mm – 1000mm)
Flange accommodation: EN 1092 PN 6/PN10/PN16
ASME Class 150
AS 4087 PN 10/ PN 16
JIS 5K/10K
 
D641J Pneumatic butterfly valve flange type technical parameter

Optional functions of electric actuator	double acting, single acting
Optional models of electric actuator	AT series, AW series
Voltage	AC110V, AC220V, AC24V,DC24V
Air source pressure	2bar-8bar
Nominal diameter	DN25mm ~ DN1200mm
Nominal pressure	PN1.0MPa~PN1.6MPa
Applicable temperature	NBR: -9~+80℃ EPDM: -30~+120℃ PTFE:-30~ +180℃
Connection mode	flange type
Body material	carbon steel, stainless steel,etc,
Valve plate material	Ductile iron,304, 316, 316L, 2507, 1.4529, copper, etc
Seat lining	NBR, EPDM, PTFE
Suitable medium	water liquid, gas, slurry, oil, etc.