Stainless Accumulators Stainless Volume Indication Accumulators Best Multipurpose Stainless Accumulators Heave motion compensators Hydro-pneumatic exploration and production APPLICATIONS Pipe shock , "water hammer" & surge. Pulsation Dampers




Pressure Pulsation Dampeners

Pulsation Dampeners, Suction Dampers, & Surge Arrestors

Fluctuating suction line velocities - particularly on piston pumps, cause severe cavitation. Especially where N.P.S.H. values are minimal, single port dampers do not efficiently reduce suction pulsation, because they must be 'T'd off line. Tests prove that 'in line' fitment (like a filter), of multi port pistofram units efficiently smooth suction flow. Pistoframs in the pump outlet, will be sized to your exact pulsation damping spec. Result! - less downtime, planned maintenance ability and longer packing life. Sizes 1/2 pint thru. 6 galls up to 10,000 p.s.i.

Single and twin port pipe line shock arrestors are available in pipe sizes 1/2" - 10" for line pressures up to 6,000 p.s.i. Suitable for multiplex plunger pumps and systems, cavitation prevention, etc.

For triplex pumps, damping to ±2 1/2 % of max pressure :- Damper size = 3.175 x (displacement of one plunger x max. pump pressure / min. pump pressure). For ±5% damping divide damper size by 2. For Duplex Pump multiply Damper size x 3. For Simplex multiply Damper size x 7. Note :- If in-line damper to be used (frequencies in excess of 10 Hz) check ports will take flow rates; go up in damper size if necessary.