China, Ductile Iron, Cast Iron, Dual Plate, Double Plate, Wafer, Flange, Lugged, Check Valve, Paggawa, Pabrika, Presyo, RF, RTJ, trim 1, trim 8, trim 5, PTFE, Viton, Metal, upuan, Ang mga materyales sa balbula ay may carbon steel, hindi kinakalawang na asero, 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, Aluminum Bronze at iba pang espesyal na haluang metal.Presyon mula sa Class 150LB, PN10, PN16, JIS 10K, JIS 5K