
Description : Balancing valve – maintenance free – metallic sealing, straight thr. in the face-to-face dimension basic range 1 acc. to DIN EN 558, at DN150 with digital travel indicator , at DN250 with gland seal, DN 15 – 400, PN 16, Material: EN-JS1049, up to 175°C respectively 350°C
Source : http://www.ari-armaturen.com/en/products/isolation/flow-regulating/astra-plus.html