阿斯卡ASCO电磁阀Series 551

Normally Closed, Closed Centre, Open Centre - 1/4 - Spool Valve - Aluminium, Brass, Stainless Steel - Air: Inert Gas, Natural Gas - Tapped and NAMUR connection

常闭  1 / 4 -阀-铝，黄铜，不锈钢，空气：惰性气体，天然气， NAMUR连接

阿斯卡ASCO电磁阀Series 551

FEATURES
Resistance to harsh environments thanks to its "non-breathing" design, and tapped and Namur construction
Reliable spool valve technology for continuous process availability
Aluminium, brass and 316L stainless steel body options, making it suitable for all extremes of environment
Low power construction for more efficiency
Wide temperature range: -40°C to +80°C
Wide explosion proof solenoid offering
Global certification, including ATEX, CUTR, UL, SIL, and more

MATERIALS IN CONTACT WITH FLUID
(*) Ensure that the compatibility of the fluids in contact with the materials is verified
Body :Stainless steel, AISI 316L
End cover (spring) :Stainless steel
Spool valve internal parts :     Stainless steel, POM
Pilot end-cover : Stainless steel
Core tube :Stainless steel
Core and plugnut : Stainless steel
Core spring :Stainless steel
Sealings & discs :NBR    
Top disc :FPM
Disc holder :POM
Cartridge (Low power) :Welded, packless AISI 430
Seat: Stainless steel
Seat insert :POM
Shading coil: Silver
Rider ring (Low power) :PTFE (NF/WSNF solenoids only)

Series 551 ordering examples：