K-Flo Butterfly Valve Family

Crispin’s K-Flo Butterfly Valves meet or exceed ANSI/AWWA C504 Standards.

abbreviations used for product Compliance

NSF 61: Certified for Drinking Water Systems
NSF 372: Certified Lead Free
AIS : American Iron & Steel Act
BA : Buy America ACT
BAN: Buy American Act
BB: Build American Buy America Act (BABA)

47 Series (Mechanical Seat)

The K-Flo 47 Series butterfly valve is a large diameter valve line designed for a variety of liquid and gaseous applications. Available in flanged connections thru 168”, and MJ connections thru 48”.

NOMINAL INSIDE DIAMETER: 24”-168” Sizes Available (FLxFL, MJxMJ config.)

Construction Materials

bodyCast Iron (ASTM A126 Cl B) or Ductile Iron (ASTM A536 Gr 65-45-12)

bolts(EXT): SAE J429 Gr 2 Carbon Steel

nuts(EXT): ASTM A563 Gr A Carbon Steel

seatBuna-N Rubber or EPDM

discDI (ASTM A536, GR65-45-12) w/316 SS edge

shaft316 SS (ASTM A276 T304)*

bearingsTFE W/FIBERGLASS BACKING

pressure ratingClass 150B and Class 250B

configurationAIS, BA, BAN, BB AVAILABLE

certificationNSF 61 AND 372

*Optional Materials-SHAFT: 316 SS, or 17-4PH SS ON CL 250

download product brochure Download Catalog

KFLO BUTTERFLY VALVES

47 Series (Mechanical Seat)

Technical Information

Dimensional Data

Material Lists

Actuation Information

Operations & Maintenance

47 Series O&M Manual

Certifications

47 Series AWWA C504 Certification

Additional Information

KFLO BUTTERFLY VALVES

47 Series (Mechanical Seat)

KFlo 24" Model 473 (Flanged, Class 150B) with TNA Actuator:

KFlo 24" Model 476 and 476+ (Mech. Joint x Mech. Joint, Class 150B) with TNA Actuator:

24" Model 476, TNA+NUT, 450lb Input Torque

KFlo Models 473 and 473+ (Flanged x Flanged, Class 150B) with Worm Gear and 2" Nut:

KFlo Models 473 and 473+ (Flanged x Flanged, Class 150B) with Worm Gear and Handwheel:

KFlo Model 473HP (150# Flanged x Flanged, CL 250B) with Worm Gear and 2" Nut:

KFlo Model 473HP (150# Flanged x Flanged, CL 250B) with Worm Gear and Handwheel:

KFlo Model 475 (250# Flanged x Flanged CL 250B) with Worm Gear and 2" Nut:

KFlo Model 475 (250# Flanged x Flanged CL 250B) with Worm Gear and Handwheel

KFlo Models 476 and 476+ (Mech. Joint x Mech Joint CL 150B) with Worm Gear and 2" Nut:

KFlo Models 476 and 476+ (Mech. Joint x Mech. Joint CL 150B) with Worm Gear and Handwheel

Additional sizes are available. Please contact the factory.