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Pulsation Damper for Motor-Driven Metering Pumps

Pulsation dampers have an equalising effect. They are used to ensure low-pulsation metering.

Product description

For low-pulsation metering

Pulsation dampers are available in different versions: diaphragm accumulators, in-line dampers, bladder dampers and accumulators.

Pulsation dampers are used for low-pulsation metering and to reduce the flow resistance with long metering lines. They are also ideally suited to viscous media. The gas cushion between the housing and hose is compressed when the metering pump has a pressure stroke, at the same time as a partial volume of the medium is metered into the metering line. The overpressure that forms in the gas cushion causes the compressed volume to be transported on at the following suction stroke and the original, relaxed volume of gas is present again.

The benefits for you

  • Low-pulsation metering
  • Reduces flow resistance when using long dosing lines

Accumulators

Pulsation dampers with separating diaphragm / bubble for providing separation between the gas cushion and metered chemical are used for low-pulsation metering as well as for reducing the flow resistance in long metering lines and with viscous media. The preload pressure of the gas cushion should be approx. 60-80% of the operating pressure.

Important: A pressure relief valve should always be fitted with an adjustable back pressure valve when using a pulsation damper.

PVDF In-Line Pulsation Damper

Function: Hydropneumatic reservoir with deflection

The PVDF reservoir with PTFE diaphragm offers excellent chemical resistance, making it suitable for a wide range of liquids. The pulsation damper has two liquid connections and can be installed either directly in the pipe or diagonally across with a set of blanking plugs. Deflection in the fluid valve aims the volume flow directly at the diaphragm. This causes the volume flow to come into direct contact with the diaphragm. In this way the trapped gas volume optimally balances out fluctuations in the volume flow.

Important: The pulsation dampers should always be protected by a relief valve.

Type

Volume

Max. pressure

Connector size

Order no.

l

bar

PD In-line

0.2

10

G 1 – DN 15

1026252

PD In-line

0.5

10

G 1 – DN 15

1026736

PD In-line

0.2

16

G 1 – DN 15

1033446

PD In-line

0.5

16

G 1 – DN 15

1033447

PD In-line

0.2

25

G 1 – DN 15

1036154

PD In-line

0.5

25

G 1 – DN 15

1036155

The preload pressure is approximately 0.6 x the operating pressure. Maximum medium temperature, 65 °C. Connection parts must be ordered separately.

The reservoir is filled with nitrogen via the VG8 gas filling connector or with compressed air using a standard filling valve (e.g. a car tyre valve).

Important:If using combustible liquids, nitrogen must be used as a filling gas. Do not use oxygen under any circumstances!
Configuration:DGRL97/23/EC, other acceptances / countries upon request
Fluid group:1 and 2
Certificates:Manufacturer's test certificate M DIN55350 – 18
 Wetted materials - FDA physiologically safe
Manufacturer:HYDAC Technology

Connection/adapter kits

Consisting of a PTFE shaped composite seal, insert/adapter piece and union nut.

Connection size

Connection Piping

Material

Order no.

G 1 – DN 15

DN 10

PP

1029424

G 1 – DN 15

DN 10

PVC

1029425

G 1 – DN 15

DN 10

PVDF

1029426

G 1 – DN 15

DN 15

PP

1029443

G 1 – DN 15

DN 15

PVC

1029444

G 1 – DN 15

DN 15

PVDF

1029445

G 1 – DN 15

DN 20

PP

1029427

G 1 – DN 15

DN 20

PVC

1029428

G 1 – DN 15

DN 20

PVDF

1029429

G 1 – DN 15

DN 25

PP

1029430

G 1 – DN 15

DN 25

PVC

1029431

G 1 – DN 15

DN 25

PVDF

1029432

  • pk_2_106_1

Stainless Steel Pulsation Damper

Volume

Max. pressure

Diaphragm material

Connector G

Dimension A

Diameter Ø D

Order no.

bar

mm

mm

0.16

180

NBR

Rp 1/2

124

74

1008609

0.16

180

Butyl

Rp 1/2

124

74

1008610

0.16

180

FKM A

Rp 1/2

124

74

1008611

0.32

160

NBR

Rp 1/2

137

93

1008612

0.32

160

Butyl

Rp 1/2

137

93

1008613

0.32

160

FKM A

Rp 1/2

137

93

1008644

0.75

140

NBR

Rp 1/2

168

121

1008645

0.75

140

Butyl

Rp 1/2

168

121

1008646

0.75

140

FKM A

Rp 1/2

168

121

1008647

2.00

100

NBR

Rp 3/4

224

167

1008648

2.00

100

Butyl

Rp 3/4

224

167

1008649

2.00

100

FKM A

Rp 3/4

224

167

1008650

0.75

140

NBR

Rp 1

168

121

1027617

0.75

140

Butyl

Rp 1

168

121

1027618

0.75

140

FKM A

Rp 1

168

121

1027619

2.00

100

NBR

Rp 1 1/2

224

167

1027620

2.00

100

Butyl

Rp 1 1/2

224

167

1027621

2.00

100

FKM A

Rp 1 1/2

224

167

1027622

Mounting clamp for stainless steel pulsation damper

Volume

Number of Clamps

Diameter Ø D

Order no.

l

mm

0.16

1

74

1008664

0.32

1

93

1008665

0.75

1

121

1008666

2.00

1

167

1008667

4.00

2

170

1008668

  • pk_2_101
  • pk_2_102

PVC Accumulators

Pulsation dampers with separating diaphragm / bubble for providing separation between the gas cushion and metered chemical are used for low-pulsation metering as well as for reducing the flow resistance in long metering lines and with viscous media. The preload pressure of the gas cushion should be approx. 60-80% of the operating pressure.

Important: A pressure relief valve should always be fitted with an adjustable back pressure valve when using a pulsation damper.

Accumulator removable, FKM seals.

Application (0.5/1 l)

25 °C - max. operating pressure 10 bar

40 °C - max. operating pressure 6 bar

Application (2.5/5 l)

25 °C - max. operating pressure 6 bar

40 °C - max. operating pressure 4 bar

Volume

Diaphragm material

Connector size

L dimension

Diameter Ø D

Dimension LA

Order no.

mm

mm

mm

0.5

Butyl

G 1 - DN 15

361

145

100

791691

0.5

FKM A

G 1 - DN 15

361

145

100

791695

1.0

Butyl

G 1 1/4 - DN 20

411

170

100

791692

1.0

FKM A

G 1 1/4 - DN 20

411

170

100

791696

2.5

Butyl

G 1 1/2 - DN 25

571

170

190

791693

2.5

FKM A

G 1 1/2 - DN 25

571

170

190

791697

Please note: All vacuum cylinders with EPDM seal material are glued with Tangit. It is essential that the durability of Tangit adhesive is observed. All vacuum cylinders with FKM seal material are glued with DTX.

  • pk_2_038

PP Accumulators

Accumulator removable, FKM seals.

Application (0.5/1 l)

25 °C - max. operating pressure 10 bar

40 °C - max. operating pressure 6 bar

Application (2.5/5 l)

25 °C - max. operating pressure 6 bar

40 °C - max. operating pressure 4 bar

Volume

Diaphragm material

Connector size

L dimension

Diameter Ø D

Dimension LA

Order no.

mm

mm

mm

1.0

Butyl

G 1 1/4 - DN 20

411

170

100

792129

1.0

FKM A

G 1 1/4 - DN 20

411

170

100

792133

2.5

Butyl

G 1 1/2 - DN 25

571

170

190

792130

2.5

FKM A

G 1 1/2 - DN 25

571

170

190

792134

  • pk_2_038

PVC Vacuum Cylinder

Vacuum cylinder as priming aid for long suction line and viscous media. Housing – with PVC transparent middle section. With connector for vacuum pump.

Max. operating pressure: 2 bar at 40 °C operating temperature.

Max. permitted negative pressure 300 mbar absolute

With this: Vacuum pump assembly

Volume

Connector size

Seal material

L dimension*

Dimension D

Order no.

l

mm

mm

* Approximate values

0.5

G 1 – DN 15

FKM A

380

78

243591

0.5

G 1 – DN 15

EPDM

380

78

1025699

1.0

G 1 1/4 – DN 20

FKM A

440

86

243592

1.0

G 1 1/4 – DN 20

EPDM

440

86

1025701

2.5

G 1 1/2 – DN 25

FKM A

520

133

243593

2.5

G 1 1/2 – DN 25

EPDM

520

133

1025702

5.0

G 2 1/4 – DN 40

FKM A

630

155

243594

5.0

G 2 1/4 – DN 40

EPDM

630

155

1025703

Please note: All vacuum cylinders with EPDM seal material are glued with Tangit. It is essential that the durability of Tangit adhesive is observed. All vacuum cylinders with FKM seal material are glued with DTX.

Vacuum Pump Assembly / Priming Aid

For pulsation dampers, suction side (vacuum cylinder accumulator).

Material

Seals

Order no.

PVC

EPDM

790019

* Caution: The product contains adhesive joints with Tangit. Please note the resistance of Tangit adhesive.

  • pk_2_044
  • pk_2_045

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Overview

For low-pulsation metering

Pulsation dampers are available in different versions: diaphragm accumulators, in-line dampers, bladder dampers and accumulators.

Pulsation dampers are used for low-pulsation metering and to reduce the flow resistance with long metering lines. They are also ideally suited to viscous media. The gas cushion between the housing and hose is compressed when the metering pump has a pressure stroke, at the same time as a partial volume of the medium is metered into the metering line. The overpressure that forms in the gas cushion causes the compressed volume to be transported on at the following suction stroke and the original, relaxed volume of gas is present again.

The benefits for you

  • Low-pulsation metering
  • Reduces flow resistance when using long dosing lines

Technical Data

Downloads

Contact us

Wesley Sutton

Managing Director, ProMinent Fluid Controls UK Ltd.

»We are always available to help. Don't hesitate to contact us.«

+44 1530 560 555  Send request   

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