German imports SEFORT (Shifu Te) Pneumatic Butterfly Valve Pneumatic Butterfly Valve by pneumatic actuators and ISO standard platform for wafer type butterfly valve, compact, easy to install and maintain, and versatile. For food, beverage, chemical and industrial environmental clean piping water treatment, water supply and drainage systems, to open and close, or the role of the mediation flow. ★ Technical Parameters cylinder Optional: SEFORT series cylinder form: Double-acting, single acting (spring return) Ambient temperature: -20 ℃ - + 80 ℃ Air pressure: double action 4 ~ 8bar, single action 5 ~ 8bar ★ accessory options (freely selectable) back to the hearing: Also called limit switches, remote switch signal feedback (ordinary type, explosion-proof optional) solenoid valve: double acting election two five-pass, two-way single-acting election (ordinary type, Explosion-proof, multi-voltage optional) FRL: can air regulator, filter, lubricating the hand wheel cylinder: turn the hand wheel mechanism can be achieved manually open and close the valve electrical locator: 4 ~ 20mA input signal achieve valve adjustment function (ordinary type, explosion-proof optional) Note: Please also refer to the cylinder parameters optional pneumatic pneumatic valve actuators information ★ Features 1. Small, lightweight, easy disassembly and maintenance, can be installed in any position and angle. 2. Simple and compact structure, long life, up to ten thousand times opening and closing test operation. 3. Operation resist twisting, energy saving, completely sealed, pressure, gas leak test zero. 4. Compliance with ISO 5211, DIN3337 and VDE 3845 standard platform with the central axis, electro-pneumatic installation without processing. 5. widely applicable media, full size. 6. made of cast iron, ductile iron, aluminum, stainless steel 304/316 / 316L, carbon steel, heat-resistant steel, aluminum bronze. ★ butterfly valve parameters caliber: DN40 ~ DN900 Nominal pressure: PN0.6, PN1.0, PN1.6 Connection: Wafer, Flanged Body material: ductile iron, gray iron, steel, stainless steel (304,316 , 316L), Hastelloy valve plate material: ductile iron nickel phosphorus, nylon coated ductile iron, stainless steel (304,316,316L), Hastelloy sealing material: NBR NBR, EPDM EPDM (optional heat, wear), polytetrafluoroethylene PTFE Stem: steel nickel phosphorus, 304 / 316,316L ★ butterfly design and manufacture of acceptance standards: ISO 10631-1991 valve structure length: ISO 5752-1988 valve flange connection : ISO 7005.2 Valve Inspection: ISO / DIN 5208-1987 drive connection: ISO / DIN 5211-1982 ★ details 1.SEFORT pneumatic actuators anodized surface, rack and pinion structure; 2. switch two positions + / -5 ° stroke adjustment, NAMUR standard air interface for direct connection to the solenoid valve; 3. Normal life of up to one million times; 4. valve, the valve plate, valve shaft concentric design, 100% bi-directional bubble level 5. stentless compact exterior structure, light weight, small size;; seal 6. With no pin connection, the media and metal completely isolated, maintenance is simple; 7. backless design ensures the valve is installed without increasing twist distance; 8. disc for imported high-performance coating plate, the plate is more resistant than ordinary life and longer life; 9. for food, beverage, pharmaceutical, chemical and industrial piping pure environmental protection, water treatment, high-rise buildings, to open and close the drain line or adjusting the flow.