Triple Effect Air Release Valve
https://www.stasto.com/shop/51a-100-11111-3-fold-connection-dn100-pn10-16-body-ductile-iron-en-gjs-400-15-inner-parts-aisi-304-192335
https://www.stasto.com/web/image/product.template/192335/image_1920?unique=5228bce
3-fold ; connection DN100; PN10/16; body ductile iron EN-GJS-400-15; inner parts AISI 304
intrastat number: 84849000
Country of origin: China
Short article number: 51A10011111