... , Reducing coupling, Adjustable coupling, coupling with screw; Elbow -- equal elbow, reducing elbow, elbow with plain end, elbow with screw; Tee -- equal tee, reducing ... EN10312 sizes.-- Working temperature from -20 to 110 degree centigrade (with Chlorinated butyl rubber O ring),-- Suit medium: cold water, hot ... link: http://www.hwsspfp.com/en/download.asp Female coupling (parallel thead)