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J.H. Semp and sons have been manufacturing high pressure well stimulation componets for over 20 years. all products are fully documented, certified and made in the U.S.A
check valves model jhs-cv1 standard flow- from thread to plain. Reverse flow - from plain to thread 1" to 4"
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bull plug, male bull plug, female bull plug
ball injector model jhs -200
nps pup joints 1' to 20' length 1" to 4" size
change over - male to female change over. female to female change over. male to male change over
swadges. female swadges  female union x male thread adapters  male swadgess - male union x male thread adapters
bull plug - male bull plug. female bull plug
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check valve model jhs- cv1
image of a ball injector
nps pup joint image
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