Type-57P butterfly valves are quarter turn valves with equal percentage type flow characteristics. They provide moderate flow control and therefore can be used for both on/off and modulating service. Good tolerance to suspended solids but not recommended for use with slurries or debris. The Type-57P butterfly valve is well suited for a wide variety of fluid flow applications.

New Design Features
- Molded tag holes for valve identification and labeling
- Redesigned indicator plate for lever handle models 0° closed to 90° open legend with 10° intervals
- Increased internal sealing performance
- New design disc and seat
Resources
Data Sheet
Specifications
Ideal Applications Include: Isolation valves, control valves, chemical processing, water treatment, water features, fountains, aquariums, landfills, swimming pools, power plants, mining, transportation
Video
Size:
1-1/2″ – 14″
Body Materials:
PVC/CPVC/PP/PVDF
Seat Materials:
EPDM/FKM/Nitrile
Disc Materials:
PVC/CPVC/PP/PVDF
Features/Benefits
Actuation
Options
Resources
Online Tools
Features/Benefits
- 316SS Stem with full disc engagement
- Full seat design eliminates gaskets
- Seat overtightening prevention
- Lockout-Tagout – lever handle molded padlock provision and 2-molded valve body tag holes
- Highly visible O° to 90° position indicator with 19 fine adjustment locking positions
- ISO 5211 F07 – F14 bolt circle on top flange
- Polypropylene stem retainer
- Spherical disc design
- Non-wetted stem and body – Isolated from the media
- Plasgear™ operator
Actuation
Options
Resources
- New Product Announcement – Type-57P Butterfly Valve
- Datasheet – Type-57P Butterfly Valve
- O&M Manual – Type 57P Butterfly Valve
- User Guide – Type-57P Butterfly Valve
- Specification – Type-57P Butterfly Valve
- Drawing (Gear) – Type-57P Butterfly Valve
- Drawing (Lever) – Type-57P Butterfly Valve
- Drawing Exploded View – Type 57P Lever and Gear
- Drawing Machined Lug for Type-57P, Type-57 and Type-56 Butterfly Valves
- NSF Certification
- Type-57P Video
- Butterfly Valve Quick Reference Guide
- Magazine Article – How to Choose a Butterfly Valve Processing Magazine
- Magazine Article – Thermoplastic Butterfly Valves Aid a Variety of Applications
- Case Study – Mining
- Case Study- Aquarium Life Support System
Online Tools