・Stainless steel type
・Easy to lock push-lock type
・Larger knob
・Improved tube insertion/removal
　Insertion force: Max. 30% (8 N) reduction
　Removal force: Max. 20% (5 N) reduction*
　* Tube removal strength is ensured to be equivalent to the previous model.
・360° swivel piping is possible. (Universal type)
・Available with a restrictor (Made to order: -X214, -X21)

・Stainless steel type
・The numerical indication of knob rotations for flow rate reduces flow setting time and setting errors.
　The value can be controlled with the indicator window.
・Larger push-lock type knob
・Improved reproducibility of flow rate
・Easier to insert and remove tubes
・Available with a restrictor (Made to order: -X214, -X21)

・Stainless steel type
・Reduces flow setting time
　Easy to use push-lock type
　Knob O.D.: Almost doubled
・Improved reproducibility of flow rate
・Lightweight: Weight reduced by approx. 27%

・Stainless steel type
・The numerical indication of knob rotations for flow rate reduces flow setting time and setting errors.
　Flow rate can be controlled numerically with the indicator window.
　4 indicator window directions are available.
・Larger push-lock type knob
・Improved reproducibility of flow rate

・Stainless specifications for use in corrosive environments
・Stainless steel 303 is used for metal parts.
・Available with a restrictor (Made to order: -X214, -X21)

・Improved environmental resistance with the all stainless steel exterior
　Possible for use in environments such as high temperature, water splashing,
　and where copper and zinc cannot be used
・Max. operating temperature: 150°C
・NSF H1 grease
・Connection thread: Supports M5, R, and G
・Material: Stainless steel 316 (Body A), FKM (Seal material)
　* Stainless steel 304 is used as the material for parts other than body A.
・Compact: Height reduced by 23％, Lightweight: 21 g ← 42 g

・Material: Stainless steel 316
　Sealant: Special FKM
　Seat ring: Stainless steel 303
・Applicable tubing materials
　FEP, PFA, Nylon, Soft nylon, Polyurethane, Polyolefin

・Flame resistant (Equivalent to UL94 Standard V-0)
・Flame resistant spatter cover (KR-□C-X1807)

・Uses flame-resistant resin (Equivalent to UL-94 Standard V-0)
　Applicable tubing O.D.: ø6, ø8, ø10

・Improved environmental resistance with the all metal exterior
・For use in environments with welding spatter, dust, ultraviolet, etc.
・Improved installability
　More space beneath the tube. Easier installation/removal of the tube
・Lightweight: Approx. 28% reduction (* 54 g → 39 g)

・Uses flame resistant resin as standard. (Equivalent to UL-94 Standard V-0)
・Available with a restrictor (Made to order: -X214, -X21)

・Flame resistant resin (Equivalent to UL-94 Standard V-0)
・Flat head screwdriver adjustable
　Prevent accidental manual operation by making adjustments with a flat head screwdriver.
・Thread type: G thread
・Flame resistant spatter cover (KR-□C-X1807)

・Improved environmental resistance with an all metal exterior＊
　＊Excluding the sealant
・Comes with a spatter cover
　Also available for the KQB2/KQG2 series

・Low particle generation type speed controller suitable for use in clean rooms
　AS-FPQ: Electroless nickel-plated brass
　AS-FPG: Stainless steel 304
・AS-FPQ, AS-FPG: Polypropylene resin (Resin parts)

・Integrated quick exhaust valve and exhaust throttle valve
・Supports the high speed operation of cylinders