Tsieina, cryogenig, bêl-falf, arnofio, Trunnion, Sefydlog, Mounted, -196 ℃, tymheredd isel, Gweithgynhyrchu, Ffatri, Pris, Flanged, RF, RTJ, dau ddarn, tri darn, PTFE, RPTFE, Metel, sedd, turio llawn , lleihau turio, mae gan ddeunyddiau falfiau dur carbon, dur di-staen, A216 WCB, A351 CF3, CF8, CF3M, CF8M, A352 LCB, LCC, LC2, A995 4A. 5A, A105(N), F304(L), F316(L), F11, F22, F51, F347, F321, F51, Alloy 20, Monel, Inconel, Hastelloy, Alwminiwm Efydd ac aloi arbennig arall. Pwysau o Ddosbarth 150LB, 300LB, 600LB, 900LB, 1500LB, 2500LB