Rotary valve Each part variation
Variation of rotor
Note: It is classified by model classification (7)(8)(9).
Rotor option Model classification (7)
Helical Ｈ Type
- Rotor which has blades twisted in the direction of rotor rotation
- Powder and granular is discharged continuously compared to the straight blades
- Clogging of powder and granular in the case blades is less compared to the straight blades
- Compared to the straight blades, the number of blade seals with the case reduces and air-tightness goes down a little
Double-helical WH Type
- Rotor with blades twisted in V shape in the direction of rotor rotation
- Powder and granular clogging in the case blades is less compared to straight blades
- Finally clogging is less due to combination with clogging prevention shoot
Upper-bottom R Type
- A type where rotor inner cylinder is larger than the standard, which results in rotor volume re-suction
- Adopt, when required discharge efficiency is less with respect to connected caliber
- As the powder and granular part is shallow, flaking of powder and granular material at the time of discharge is comparatively good
Zigzag T Type
- Pocket structure in which filling chamber is divided in multiple shaft directions and which has phase difference in the direction of rotation
- Use , when continued amount of supply is required for weighing device
- As pocket wall area is comparatively more, it is not suitable for highly adhesive powders and granular
Round-bottom S Type
- Structure where R is designed in such a way that there are no angles at the bottom of the rotor’s powder and granular filling part
- Effective in improvement of peel ability of powder and granular
Steel-ball B Type
- Structure where baffle plate and steel ball is designed in rotor inner cylinder
- Steel ball moves upward and downward in repetition depending on rotor rotation and
Rotor classification Model classification (8)
Open O Type
- Rotor which do not have side wells at both ends of blade
- As the clearance of case should be with blade front end and blade both side ends, it is necessary to control clearance in circumferential direction and shaft direction
- Powder and granular residue is less, as the stuffing box inner surface is exposed inside the line
Pocket P Type
- Rotor with side wells on both ends of blade
- Control of clearance only for circumferential direction, as the clearance with the case is end of blade and side wall circumference
- As there is a space partitioned by stuffing box and side well, take proper care so that powder should not get stuck internally
- It is suitable for shaft seal protection, as shaft seal is separated from the line for powder and granular flow
Single-pocket OP Type
- Rotor with side walls for blade single end
- Clearance of case should be by blade ends, side wall circumference and open side blade end
- Sanitary type etc controls side wall on drive side, protects shaft seal and also make maintenance easy as open door side
Molded-rubber F Type
- Casting rubber rotor
- Initial sealing performance is high, as it rotates while in contact with the case
- Rotor is generally dealt as consumable and is ideal for powders with low wearing resistance
- As rubber wears out, there is a possibility of small amount mixing in powder and granular line
- Easy to clog and possibility of discharge of undefined material
All-resin L Type
- Resin integrated cutting rotor
- Material compliance as per your specification such as Teflon, ultra-high molecular weight polyethylene etc.
Rotor material Model classification (9)
Rubber-chip TU Type
- Metal rotor’s end of the blade equipped with rubber tip
- Use for larger size rotor that cannot be covered by molded rubber rotor
- Tip part is a contact seal and has high initial air tightness
- Replacement of tip and adjustment possible for cutting edge clearance
Metal-chip TS Type
- Metal rotor’s end of the blade equipped with metal tip
- Applicable in case of tip differing from rotor material
- Replacement of tip and adjustment possible for cutting edge clearance