Mitsumi Iris Valves are highly effective when used as pass through (diaphragm) valves in isolation environments like clean rooms, lab chambers, blasting booths, and others. Mitsumi’s high-strength but flexible rope and sleeves form an airtight seal around any shaped tubing or piping. When not in use the valve can be completely closed to maintain an airtight and dust-free environment. And the valves lock and unlock with a simple 90° turn, which makes rerunning conduits a breeze.
The sleeve is set in a flange on the valve casing with choke ropes running in parallel between the two rings of the casing. Turning the handle 90° rotates the ropes so they close the sleeve and form a complete seal.
A, AH, SS = Aluminum, Aluminum Hardened, Stainless Steel.
A ModelIris Valve
AH ModelIris Valve
SS ModelIris Valve
|Casing||Aluminum alloy (AC7A) with surface hardening||Aluminum alloy (AC7A) with PTFE hardening||Stainless Steel (SUS304)|
|Bore Size||3.5” (80A) – 25” (600A)|
|Choke Ring||Aluminum alloy (AC7A) with surface hardening or Chrome-plated iron (SS400(JIS))||Aluminum alloy (AC7A) with PTFE hardening||Chrome-plated stainless steel (SUS304)|
|Choke Rope||Ultra-high molecular weight polyethylene fiber|
|Handle (Manual)||Aluminum alloy (A6063(JIS)) with surface hardening||Aluminum alloy (A6063(JIS)) with PTFE hardening||Chrome-plated stainless steel (SUS304)|
|Opener||Stainless steel (SUS304)|
|Sleeve||Cloth: PTFE, cotton, silk Synthetics: nylon, polyester, polyethylene, rubbers, PVC, Hypalon, Viton, etc. Other: natural rubber, aluminum leaf laminated sheets, etc.|