Page 14 - Butech - Medium pressure valves, fittings and tubing

MEDIUM PRESSURE CHECK VALVES

A BuTech ball check valves prevent reverse flow where
leak-tight shutoff is not necessary. Standard materials of
B
construction are 316 stainless steel with 17-4PH poppet for
longer life, and 300 series stainless steel spring.
Note: For 316ss wetted parts, add -316WP to the catalog

D HEX C HEX number.
Cracking pressure: 15 PSI (1 bar) approximate
Operating Temperature Range:
-420° to +1200°F
(-251° to +648°C)
BALL CHECK VALVES
Catalog
Number Connection MAWP Cv A B C D
1/4" M/P 20,000 PSI 2.93" 2.50" 1.00" 0.88" To order a valve with a cracking
20BC4 0.25
Tube 1380 bar (74.4) (63.5) (25.4) (22.4) pressure other than the standard 15 PSI,
3/8" M/P 20,000 PSI 3.13" 2.62" 1.12" 0.88"
20BC6 0.80 add the cracking pressure to the end of the
Tube 1380 bar (79.5) (66.5) (28.4) (22.4)
catalog number. Example: A 20BC9 with
9/16" M/P 20,000 PSI 4.22" 3.50" 1.38" 1.38"
20BC9 2.30 50 PSI cracking pressure would be ordered
Tube 1380 bar (107.2) (88.9) (35.1) (35.1)
3/4" M/P 20,000 PSI 5.94" 4.75" 1.75" 1.38" as 20BC9-50.
20BC12 3.40
Tube 1380 bar (150.9) (120.7) (44.5) (35.1) Cracking pressures available up to 100
1" M/P 20,000 PSI 6.50" 5.55" 2.12" 1.75" PSI (7 bar)
20BC16 5.20
Tube 1380 bar (165.1) (141.0) (53.8) (44.5)

BuTech o-ring check valves reliably prevent backflow
A where leak-tight shutoff for liquids or gases is required.
Standard materials of construction are 316 stainless steel with
B
Buna-N o-ring and 300 series stainless steel spring.
Cracking pressure: 15 PSI (1 bar) approximate
Operating Temperature Ranges:
D HEX C HEX O-ring Catalog
Material Operating Temperature Range Suffix
Buna-N -65˚ to +250˚F (-54˚ to +121˚C) ----
Viton -40˚ to +500˚F (-40˚ to +260˚C) -VA
Teflon -320˚ to +400˚F (-195˚ to +204˚C) -TFE
Kalrez -20˚ to +550˚F (-29˚ to +288˚C) -HT
O-RING CHECK VALVES
Catalog
Number Connection MAWP Cv A B C D
To order a valve with a cracking
1/4" M/P 20,000 PSI 2.94" 2.50" 1.00" 0.88"
20SC4 0.25
Tube 1380 bar (74.7) (63.5) (25.4) (22.4) pressure other than the standard 15 PSI,
3/8" M/P 20,000 PSI 3.12" 2.62" 1.12" 0.88" add the cracking pressure to the end of
20SC6 0.80
Tube 1380 bar (79.2) (66.5) (28.4) (22.4) the catalog number. Example: A 20SC4
9/16" M/P 20,000 PSI 4.23" 3.50" 1.38" 1.38" with 40 PSI cracking pressure would be
20SC9 2.30
Tube 1380 bar (107.4) (88.9) (35.1) (35.1) ordered as 20SC4-40.
3/4" M/P 20,000 PSI 5.89" 4.75" 1.75" 1.38"
20SC12 3.40 Cracking pressures available up to
Tube 1380 bar (149.6) (120.7) (44.5) (35.1) 100 PSI (7 bar)
1" M/P 20,000 PSI 6.50" 5.55" 2.12" 1.75"
20SC16 7.40
Tube 1380 bar (165.1) (141.0) (53.8) (44.5)

All dimensions are for reference only and are subject to change.
Dimensions in parentheses are millimeters (mm) MP-09
Page MP-14
2121 EBCO Drive, Suite 1 • Erie, PA 16506 USA • Ph: (814) 833-4904 • Fax: (814) 833-2612 • E-mail: hq@butech-valve.com