Chifukwa cha ma valve owonetsetsa kawiri ndizotheka kuyendetsa chithandizo ndi kayendetsedwe ka katundu woyimitsidwa mbali zonse ziwiri za actuation. Zomwe zimagwiritsidwa ntchito pamtundu woterewu zimakhala pamaso pa ma silinda ochita kawiri omwe mukufuna kutseka pakugwira ntchito kapena kupuma. Chisindikizo cha hydraulic chimatsimikiziridwa ndi poppet yowuma komanso pansi.

Chifukwa cha chiŵerengero cha woyendetsa, kutulutsa mphamvu kumakhala kochepa kusiyana ndi komwe kunayambitsidwa ndi katundu woyimitsidwa.  ma valve amapezeka ndi ma doko a BSPP-GAS. Kutengera ndi kukula kosankhidwa, amatha kugwira ntchito ndi zovuta zogwirira ntchito mpaka 320 bar (4640 PSI) ndi 50 lpm (13.2 gpm) kuthamanga.

Thupi lakunja limapangidwa ndi chitsulo champhamvu kwambiri komanso kutetezedwa kunja kwa okosijeni ndi chithandizo cha galvanizing. Chithandizo cha Zinc/Nickel chimapezeka mukapempha ntchito makamaka zokhala ndi zowononga.