Elastomer Seated Butterfly Valves

  • PVC
  • PP
  • PVDF
  • PDCPD
  • transparent-1px
  • NSF
  • CRN
  • Series: Type 56/57/75
    Disc Material: PP, PVC, PVDF
    Sizes Range: up to 24″
    Seat and O-Rings: EPDM, FKM (VitonR)
    Body Types: Type 57/56/75 Wafer: 1-½” – 24″
    Type 57LIS Lug: 3″ – 8″
    Type 57IS Narrow Wafer: 3″ – 8″

Features

Elastomer Seated Butterfly Valves

Chemline elastomer seated butterfly valves have a successful history of over 40 years and have replaced metal valves in many difficult process applications. Type 57a body, disc and seat are designed to 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 and shaft 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.

✓ Compact and Light Weight
✓ High Corrosion Resistance
Solid plastic body and disc
✓ Abrasion Resistant
PVDF disc available for high abrasion resistance
✓ Easy Actuator Mounting
Valves up to 16” have standard ISO 5211 top flange and shaft dimensions

Technical

Options

 

57-lockout
Optional Lock-out and Hasp
57-stem
Stem Extensions
57-limit
Limit Switches
57-chainwheel
Chain Wheel Operator

Electric Actuation

Model Valves/Torque Operation/Control Position Indication
Q-series electric actuator
Q-Series
Butterfly up to 3″
Torque: up to 300 in-lbs
On-Off (3 wire)
Adjustable Travel

Optional:
On-Off (2 wire), Failsafe
3-Position, Modulating
Visual

Optional:
2 Feedback Switches
Feedback Potentiometer
Feedback Transmitter
E-series electric actuator
E-Series
Butterfly up to 4″
Torque: up to 885 in-lbs
On-Off (2/3 wire)
Adjustable Travel

Optional:
Failsafe
Modulating
BUS (custom)
Visual
2 Feedback Switches

Optional:
2 Extra Feedback Switches
Feedback Potentiometer
Feedback Transmitter
A-series electric actuator
A-Series
Butterfly up to 6″
Torque: up to 2000 in-lbs
On-Off (3 wire)
Adjustable Travel

Optional:
On-Off (2 wire), Failsafe
Multi-Turn, 3-Postion
Modulating, BUS (custom)
Visual


Optional:
2 Feedback Switches
Feedback Potentiomete
Feedback Transmitter
V-series electric actuator
V-Series
Butterfly up to 20″
Torque: up to 8850 in-lbs
On-Off (2/3 wire)
Adjustable Travel

Optional:
Failsafe
Modulating
BUS (custom)
Visual
2 Feedback Switches

Optional:
2 Extra Feedback Switches
Feedback Potentiometer
Feedback Transmitter

Pneumatic Actuation

Model Valves/Torque Application Material
PA Series pneumatic actuator
PA-Series
Butterfly up to 24″
Torque: up to 40660 in-lbs
Industrial Process
Submerged
Bleach / water washdown
Rislan-coated aluminun
PP-series pneumatic actuator
PP-Series
Butterfly up to 6″
Torque: up to 1335 in-lbs
Industrial Process
Minimal use of metal
Glass-filled Polyamide
P3-series pneumatic actuator
P3-Series
Butterfly up to 10″
Torque: up to 8850 in-lbs
Corrosive
Submersed
Off-shore
316 Stainless steel
Actuator Accessories
Pneumatic Actuator Accessories
Chemline has a full range of Postioners, Limit Switches, Solenoids, Filter Regulators and other air handling accessories.

Pricing

Click below for detailed product information including pricing, availability, and additional supporting documentation.

Body Disc Elastomers
EPDM Viton Nitrile
PVC PVC
PVC PP
PVC PVDF
PP PP
PP PVDF
PVDF PVDF