PD65 Hose-Type Damper

Save time and costs

YM Series Hose-Type Dampers:

  • Reduce pulsations in pumps and processes to increase process uptime and performance.
    ● Reduce system vibration and eliminate pipe hammer, Thereby improving the pump’s operational performance.
    ● Series installation for easy maintenance, suitable for hose sizes of 25 millimeters (1 inch)  Bredel and APEX pumps up to 100 mm (4 inches)
    ● Within a pressure range of 2 bar (29 psi) to 16 bar (232 psi), up to 90% of pump outlet pulsations can be eliminated.
    ● Certified by Lloyd’s Register Quality Assurance (LRQA) in accordance with the requirements of Directive 2014/68/EU.

Structural materials

  PD65
Hose material Chlorosulfonated polyethylene (CSM), Ethylene–Propylene–Diene Monomer rubber (EPDM), Natural Rubber (NR), Nitrile Rubber (NBR)  
Housing assembly Carbon steel 
O-ring Nitrile Rubber (NBR) 
Flange material Galvanized steel, 316 stainless steel 
Insert Polypropylene (PP), Polyvinyl Chloride (PVC), Polyvinylidene Fluoride (PVDF), Stainless Steel 

Product code

Replace hose component Part Number
Hose type Materials Color code PD/65
Natural Rubber Hose (NR) Natural rubber Purple 28-P065020
Natural Rubber Hose (NR) Nitrile rubber Yellow 28-P065040
EPDM Rubber Hose Ethylene propylene diene monomer Rubber Red 28-P065075
Chlorosulfonated Polyethylene Hose (CSM) Chlorosulfonated polyethylene Blue 28-P065070

Technical Specifications


  PD65
Maximum working pressure 16 bar (232.1 psi)
Storage temperature range -40°C to 70°C
Storage Temperature Range (Fahrenheit) -40°F to 158°F
Product temperature range -10°C to 80°C
Product Temperature Range (Fahrenheit) 14°F to 176°F
Assembly weight 79.9 kg (176.1 lbs) 
Flange dimensions 2-1/2 inch 
Applicable pump models YM50, YM65

Dimensions (in millimeters, applicable to DIN flanges) Dimensions (inches, for 150# ANSI flanges)
A B C C n x N L M A B C C n x N L M
Damper model Pump model SS PVC PVDF PP DIN flange dimensions SS PVC PVDF PP ANSI flange dimensions
PD65 YM50 245 1056 6 20 4 x 18 125 50 9.6 41.6 0.24 0.79 4 x 3/4 4-3/4 2
PD65 YM65 245 1056 3 20 4 x 18 145 65 9.6 41.7 0.12 0.79 4 x 3/4 5-1/2 2- 1/2

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