pressure:
working pressure: 0-10bar
control air pressure:5-8bar
temperatre:
working temperature: vmq(-50~ 180℃) epdm(-20~ 135℃) fpm(-30~ 230℃)
surface treatment:
inner surface treatment：ra≥0.4-0.8µm
outside surface treatment：ra≥0.8-1.6µm
the diameter welding ：welding connection din11850-2与11850-1/sms/3s/iso
