Butterfly valve with snap-in single-handed lever and full EPDM seal
The butterfly valve is the most ideal valve for controlling the flow in a pipeline. The flow is changed by a centrally mounted disk that can rotate in the flow cross-section. When the valve is fully open, the disc is aligned parallel to the direction of flow. The disc can be fixed between 0° and 90° opening angle in 15° increments by means of a snap-in lever.
PVC-U butterfly valves are the ideal shut-off valve in terms of price/performance. They have a wide range of applications and are suitable for pool construction and swimming pool construction, as well as in wastewater technology or the chemical industry.
Thanks to their compact design, with mounting between flanges and a large net opening at an attractive price, a shut-off valve made of rigid PVC is the ideal shut-off and control valve. The soft-sealing and centric valve is suitable for throttle and shut-off functions.
The space required within the pipe is very small. PVC-U shut-off valves are "clamped" between two flanges. The full EPDM seal is used here in a component to seal the flanges and also between the valve and the opening.
The manual version with an ergonomically designed, long hand lever enables the PVC-U butterfly valve to be operated safely even at higher pressures.
Advantages over ball valves
- smaller footprint
- lower flow resistance,
- especially with large diameters, a cost-effective alternative
Advantages over the slide valve
- can be used for large dimensions at 20°C up to PN 10 or 6 bar
- particularly suitable for large sizes. An attractively priced alternative
- can be used as a regulating unit, flow control via a latchable lever
- Seals even in dirty water
Connection of PVC-U shut-off valve with fixed flange
The PVC-U fixed flange connection requires the least space in your system. The lower-cost PVC-U fixed flanges are connected to the PVC-U pipes
The
PVC-U fixed flange connection requires the least space in your system. The lower-cost PVC-U fixed flanges are glued to the PVC-U pipes and
the butterfly valve is inserted between the fixed flanges. The enclosed galvanized screws fix the butterfly valve between the two fixed flanges. To remove
the control valve, these screws are loosened and the shut-off valve can be removed in a depressurized state. In the fixed flange,
the PVC-U collar bushings are firmly connected to the flange section, i.e. the collar bushing and loose flange are a hard PVC fitting. The seal is located on the shut-off valve.
Assembly between flange adapter and loose flange
When installing
a PVC-U butterfly valve between
the flange adapter and
the loose flange, small movements can still be made between the two connection sides, since small movements are possible between the flange adapter and the loose flange.
The PVC-U flanges and butterfly valves sold in our online shop
PVC-Welt.de are made from high-quality branded granules. Due to the slightly wider design, a little more space is required in the pipe system than in comparison to a combination of PVC-U butterfly valve with fixed flange. The butterfly valve is suitable for a variety of applications. In particular, for water treatment, irrigation, swimming pool construction and industrial applications.
The EPDM sealing sleeve with a dual function not only serves as a hydraulic seal but also protects the body of the valve from aggressive media. An additional seal between the valve and
the flange connection is not necessary.
The guide and control rod, which regulates the valve position in the center, is made of hardened galvanized square steel profile without media contact.
