 Strong, resilient design - Made of 4140 HTSR ISO 9002 steel, the Rod Knuckle holds up to extreme temperatures and corrosion effects. Functional design includes a low 16.5" profile, two sets of packing and a check valve - all while weighing only 45 lbs |
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 Easy to service - The simple design facilitates easy servicing. Replace internal components when required without ever lifting anything over the polished rod. |
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 Enhanced lubrication options - Rod lubrication can be achieved using the "Knuckle Buddy" lubrication system - specifically designed for use with the Rod Knuckle. |
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 Safe high pressure capabilities - The Rod Knuckle has been tested to 10,500 PSI and is rated at 3000 PSI, as well as 42,000 lb top-load testing without crushing the packing. The flapper check-valve helps prevent costly spills in the event of polished-rod failure. |
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