- Wafer Type Duo Check Valves
- Wafer Type Check Valves
- Wafer Type Swing Check Valves
- Bottom valves
RITAG WAFER TYPE CHECK VALVES
It is stop valves which allow flow in one direction and automatically prevent backflow. They are name It is stop valves which allow flow in one direction and automatically prevent backflow. They are named according to their use as check valves, gravity circulation valves, pressure relieving valves and vacuum breakers etc. The check valves, Type SR, have been sold in Germany and worldwide for over 30 years. The record of deployment and success of these RITAG valves commands respect. As specialists for check valves, we offer you a standard range which corresponds to the key applications. Special designs (PN, DN, materials, opening pressures, various soft seats) are also available.
RlTAG wafer-type check valves can be installed between pipeline flanges for liquids, gases and vapours, regardless of the position. Their main applications are: heating/hot water systems, water treatment and sewage systems, steam generation and supply systems, energy pipelines (water, air, gas, etc.) as well as processing systems for chemical and petrochemical plants.
WAFER TYPE DUO CHECK VALVES
The RITAG type ZRD is suitable for processing plants in pipeline systems of all industrial sectors, for gases and liquids. The seat can be designed either metal-to-metal (an abrasion-proof treatment of body and plates is recommended for carbon steel materials) or with elastic sealing (especially if high tightness is required). Optimum dynamic performance is produced by means of the two check valve plates. By installing the valves in horizontal pipelines, the mass of the two check valve plates is negligible, i.e. the pressure loss is less compared to check valve plates whose mass has to be raised.
WAFER TYPE SWING CHECK VALVES
The RITAG type ZRK is suitable for use in pipeline systems, mainly cooling water systems. Due to a very short face the flap/-weight. This type is not recommended for processing plants. The RITAG swing check valve is virtually maintenance-free. The seat can be designed either metal-to-metal or with elastic sealing. The flap is self-centering and protected and it has a special limit stop to protect against pipeline damage. The ZRK model is also available in other materials (such as Hastelloy). The RITAG ZRL-HG type with a shaft passing to the outside of the body is suitable for use in pipeline systems of all industrial sectors for gases and liquids – in compliance with the maximum permissible differential pressures.
This type is not recommended for processing systems.
RITAG Type BA/BAS (disc types)
Disc type valves are opening into the vessel (BA) or into the valve (BAS), which can also be equipped with bellows and heating jacket, connection to the vessel orifice or unit flange dead space free, one nominal size smaller at the outlet or the same nominal size at both ends; x and d3 dimensions variable, replaceable seat sleeve; also with pneumatic diaphragm actuator (spring-closed), ex-proofed solenoid valve and limit switches. Special designs (e. g. “fire safe approval”) are available on request.
RITAG-Type BV/BVS (piston types)
Piston type valves with smooth piston and elastic seal system (BV) or piston with metal-to-metal seat (BVS), piston extensions to penetrate vessel deposits are possible, also with heating jacket. Both connections with the same nominal size, connection to the vessel orifice or unit flange dead space free, replaceable seat sleeve; x and d3 dimensions variable, with electric actuator/ex-proofed or pneumatic cylinder actuator/ex-proofed accessories.