HSP Series
Hard Seat Check Valves

The HSP Check Valve features carbon steel construction with a hard seat (metal to metal) seal and is available with 5lb or 65lb cracking pressure. HSP valves are rated up to 5000 psi maximum pressure, based on size (see chart below).

   Check Valves Catalog Page

Part to order:

Valve Dimensions

Model # Thread Size A B Rated Flow (gpm) Rated Pressure (psi) Weight (lbs) HSP-1000-2-# 1/4" NPT 2.44" .87" 6 5000 .35 HSP-1000-3-# 3/8" NPT 2.87" 1.00" 10 5000 .44 HSP-1000-4-# 1/2" NPT 3.76" 1.26" 18 5000 .77 HSP-1000-6-# 3/4" NPT 4.30" 1.50" 30 5000 1.54 HSP-1000-8-# 1" NPT 5.12" 1.69" 36 5000 2.43 HSP-1000-10-# 1 1/4" NPT 5.56" 2.40" 50 3000 6.95 HSP-1000-12-# 1 1/2" NPT 5.56" 2.56" 60 3000 7.28 HSP-1001-4-# 7/16-20 SAE 2.56" .87" 6 5000 .35 HSP-1001-6-# 9/16-20 SAE 2.91" .94" 10 5000 .44 HSP-1001-8-# 3/4-16 SAE 3.74" 1.18" 18 5000 .77 HSP-1001-12-# 1 1/16-12 SAE 4.29" 1.50" 30 3000 1.54 HSP-1001-16-# 1 5/16-12 SAE 5.00" 1.81" 36 3000 2.43 HSP-1001-20-# 1 5/8-12 SAE 5.20" 2.41" 50 3000 6.95 HSP-1001-24-# 1 7/8-12 SAE 5.20" 2.56" 60 3000 7.28 # to be replaced by 5 or 65 depending on the required cracking pressure.

See catalog page for additional details.