Elastomer Seated Butterfly Valves – Type 57P/56/75
Chemline Type 57P Butterfly Valves offer excellent flow characteristics and low closing torques. Stem torques are unaffected by excessive flange bolt torques. Valves up to 16” have corrosion resistant FRP gear operators. Top flange dimensions are to ISO 5211 standard for easy mounting of actuators. A large selection of body, disc and seat materials permit these valves into a wide range of on/off and throttling control applications in lines up to 24” size.



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Size:Type 57P: 1-1/2" to 14", Type 56: 16", Type 75: 18" to 24"
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Body:PVC, PP, PVDF
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Disc:PVC, CPVC, PP, PVDF
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Seats & O-Rings:EPDM, FKM (Viton®)
Type 57P: 1-1/2" to 14", Type 56: 16", Type 75: 18" to 24"
PVC, PP, PVDF
PVC, CPVC, PP, PVDF
EPDM, FKM (Viton®)
Features & Benefits
- Compact and Light Weight
- Hand Lever Position Indicator
Highly visible 0 degree to 90 degree position indicator with 10 degree intervals.
19 fine adjustment locking positions - High Corrosion Resistance
Solid plastic body and disc.
Polypropylene hand levers up to 8”.
FRP gear operators up to 16” - Abrasion Resistant
Solid plastic disc.
PVDF disc available for high abrasion resistance. - Easy Actuator Mounting
Valves up to 16” have standard ISO 5211 top flange and shaft dimensions. - Easily Installed
Full bolt hole circle makes installation and alignment easy.
Technical Documents
Valve Specification Guide
Engineering specifications are crucial as they provide precision, clarity, quality assurance and compliance in your projects. Download to save you time and assure accuracy in your specifications.
Chemical Resistance Guide
Corrosion resistance is an important factor in selecting the right material of construction for valves, pipe, tubing, fittings and more. Designed to easily navigate, this guide can be downloaded for easy reference.
Materials of Construction
Understanding materials of construction is essential to the accurate selection of valves, pipe, tubing, fittings and more. Designed to easily navigate, this guide can be downloaded for easy reference.