Roller Gate

This valve is typically utilized under gravity conditions or, in some instances, it can also be used in a vacuum conveying system. This valve utilizes a seal (UHMW Polyethylene or nylon) located on the topside of the valve slide plate with no additional seal on the underneath side. Roller bearings are located beneath the slide plate to support and guide the plate into position.
STANDARD CONSTRUCTION FEATURES
304 Stainless steel or aluminum frame, cylinder mount and safety covers
304 Stainless steel blade
304 Stainless steel seal and shear protectors
Nylon rollers
Polymer lined orifice with wear compensating PET seals
Bonnet seals are removable and replaceable through side access ports while gate remains in service
OPTIONAL FEATURES
Special service inlet for protection of the seals when closing on material or when handling hard or abrasive materials
Air, electric, hand wheel or hand crank operated
Single or double solenoid air control valve
Mechanical, proximity or reed type proof switches
NEMA 4, NEMA 6, NEMA 79, TEFC or XP electrical enclosure
316L Stainless steel product contact
Variable position openclosed air control assembly
Flange mounting using standard bolt pattern, CEMA bolt pattern or custom bolt pattern
High temperature service (250°F or 400°F)
Water washdownsticky materials modifications – Electropolished blade with polyester or UHMW seals