Dosing
Pulsation Dampener - GRIFFCO
Griffco pulsation dampeners are designed to enhance the performance of chemical feed systems by reducing harmful shock waves and delivering continuous chemical dosage at the injection point.
Pulsation Dampener
High Reliability / Low Cost Pressures up to 250 psi Metallic / Pressures up to 150 psi Plastic 9 Volumetric sizes available Materials of construction available in Noryl / PP / PVDF / 316 SS / PVC Diaphragm material : EPDM / Viton / Hypalon Gauge and charging valve – STD Brass / Optional 316 SS
Material
l/hr
Connection
EPDM
FPM
Noryl
0 < 50
1/2” BSP-F
PD011-NE01
PD011-NV01
Noryl
60 < 200
1/2” BSP-F
PD013-NE01
PD013-NV01
Noryl
100 < 400
3/4” BSP-F
PD023-NE01
PD023-NV01
Noryl
900
1” BSP-F
PD032-NE01
PD032-NV01
Sizing
Pulsation dampeners are sized dependent on type of pump / volume per pulse and dampening required. For online calculator please visit https://griffcovalve.com/calculator/ Or contact your local PAAS representative for assistance.
Information needed to size a dampener
1. Type of pump (K factor) a. Simplex: Single Acting = .60; Double Acting = .25 b. Duplex: Single Acting = .25; Double Acting = .15 c. Triplex: Single Acting = .13; Double Acting = .06 d. Quadruplex: Single Acting = .10; Double Acting = .06 e. Quintuplex: Single Acting = 0.6; Double Acting = .02
2. Volume/Stroke of dosing pump in cubic in (V)
3. System mean operation pressure (SP)
4. Min and max operating pressure (Pmax & Pmin)
5. Compressed charge in dampener (y) a. Compressed Air = 1.0 b. Nitrogen = .714
Installation
For optimum effectiveness the Pulsation Dampener should be installed as close to the discharge of the pump as possible and in an ideal location directly after the discharge of the pump and prior to and back pressure or pressure retaining valve.
Pulsation dampeners will work more effectively in conjunction with pressure loading valve.
See page 226 for installation diagram
1300 PIPING (1300 747 464)
V 4.1
PAAS Source Book 231
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