Standard Stainless Piston Intake w/ Relief Valve
Extension 10.5″ x W 8″ x H 17″
Wt. 27 lb.
Traditional piston intake valve design used for pumper intake control. Provides the following features: a 30 degree integrated elbow, a field adjustable pressure relief valve and an air bleeder valve.
This is a stainless steel piston, sleeve and spindle for corrosion protection. Choose from a variety of sizes of Storz or NH connections.
Incorporated 250 PSI field adjustable pressure relief valve adjustable in increments of 25 degrees from 75- 250 PSI.
Friction loss at 1,000 GPM is 2.30 PSI

DOWNLOAD an Operating Manual with Safety Information
Warranty: All Harrington, Inc. products are warranted to be free of defects in material and workmanship for a period of one (1) year. H500S and H1000 have a five (5) year corrosion warranty.
Description
Part Number | Description | Spec Sheet | LIST |
H500S-40-45NH | 5" Piston intake valve stainless steel w/ 45° 4" Storz lock x 4.5" NH female swivel rocker lug w/ 250-S RV | $3,215.00 | |
H500S-40-50NH | 5" Piston intake valve stainless steel w/ 45° 4" Storz lock x 5" NH female swivel rocker lug w/ 250-S RV | $3,170.00 | |
H500S-40-60NH | 5" Piston intake valve stainless steel w/ 45° 4" Storz lock x 6" NH female swivel short handle w/ 250-S RV | $3,175.00 | |
H500S-40-60NH/Cap | 5" Piston intake valve stainless steel w/ 45° 4" Storz lock x 6" NH female swivel short handle w/ 250-S RV with Cap | $3,325.00 | |
H500S-40NHFS-60NH | 5" Piston intake valve stainless steel w/ 45° 4" NH Female Swivel x 6" NH female swivel short handle w/ 250-S RV | $3,125.00 | |
H500S-40NHM-60NH | 5" Piston intake valve stainless steel w/ 45° 4" NH Male x 6" NH female swivel short handle w/ 250-S RV | $2,975.00 | |
H500S-50-45NH | 5" Piston intake valve stainless steel w/ 45° 5" Storz lock x 4.5" NH female swivel rocker lug w/ 250-S RV | $3,160.00 | |
H500S-50-45NH/FTS | 5" Piston intake valve stainless steel w/ 45° 5" Storz lock Full Time Swivel x 4.5" NH female swivel rocker lug w/ 250-S RV | $3,520.00 | |
H500S-50-50NH | 5" Piston intake valve stainless steel w/ 45° 5" Storz lock x 5" NH female swivel rocker lug w/ 250-S RV | $3,115.00 | |
H500S-50-50NH/FTS | 5" Piston intake valve stainless steel w/ 45° 5" Storz lock Full Time Swivel x 5" NH female swivel rocker lug w/ 250-S RV | $3,475.00 | |
H500S-50-60NH | 5" Piston intake valve stainless steel w/ 45° 5" Storz lock x 6" NH female swivel short handle w/ 250-S RV | DOWNLOAD | $3,120.00 |
H500S-50-60NH/Cap | 5" Piston intake valve stainless steel w/ 45° 5" Storz lock x 6" NH female swivel short handle w/ 250-S RV with Cap | $3,315.00 | |
H500S-50-60NH/FTS | 5" Piston intake valve stainless steel w/ 45° 5" Storz lock Full Time Swivel x 6" NH female swivel short handle w/ 250-S RV | $3,480.00 | |
H500S-50-60NPSH | 5" Piston intake valve stainless steel w/ 45° 5" Storz lock x 6" NPSH rocker lug female swivel w/ 250-S RV | $3,120.00 | |
H500S-50NHM-60NH | 5" Piston intake valve stainless steel w/ 45° 5" NH male x 6" NH female swivel short handle w/ 250-S RV | $3,000.00 | |
H500S-60-45NH | 5" Piston intake valve stainless steel w/ 45° 6" Storz lock x 4.5" NH female swivel rocker lug w/ 250-S RV | $3,310.00 | |
H500S-60-50NH | 5" Piston intake valve stainless steel w/ 45° 6" Storz lock x 5" NH female swivel rocker lug w/ 250-S RV | $3,310.00 | |
H500S-60-60NH | 5" Piston intake valve stainless steel w/ 45° 6" Storz lock x 6" NH female swivel short handle w/ 250-S RV | $3,310.00 | |
H500S-60NHFS-60NH | 5" Piston intake valve stainless steel w/ 45° 6" NH female swivel RL x 6" NH female swivel short handle w/ 250-S RV | $3,240.00 | |
H500S-60NHM-60NH | 5" Piston intake valve stainless steel w/ 45° 6" NH male x 6" NH female swivel short handle w/ 250-S RV | $3,010.00 | |
Available Storz Caps | |||
HBC-40 | 4" Storz (100) blind cap with chain Anodized (AWG) | $150.00 | |
HBC-50 | 5" Storz (125) blind cap with chain Anodized (AWG) | $195.00 | |
HBC-60 | 6" Storz (150) blind cap [(3) lugs] with chain Anodized | $275.00 |
Special Threads available on request, cost as follows: Allow 4-5 weeks for special threads.
• All Special Threads = $15.00 net, each
• 1” to 3.5” – NPT Threads = No Charge
• 4″ and up – NPT Threads = $15.00 net, each