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Injection Valve for Low-Pressure Metering Pumps

Injection valves precisely meter the flow volumes in a line and are securely sealed from the environment.

Product description

The right support for every metering task

Injection valves are mounted at the point of injection to connect the metering line. They protect against backflow and generate a defined back pressure.

With the PP, PVC, PVDF and stainless steel version, the injection valve with ball check is spring-loaded with a Hastelloy C spring, priming pressure approx. 0.5 bar (with R1/4 connector, spring made of stainless steel no. 1.4571, priming pressure approx. 1 bar). They may be fitted in any position.

The TT version without a spring is suitable for vertical installation from below. Valve springs can be retrofitted.

Injection valve sizes DN 10 and 15 have union nuts and inserts / hose nozzles in the scope of delivery.

Important: Injection valves are not absolutely leak-tight shut-off devices!

Your benefits

  • Used as a non-return valve – in closed pipe systems to prevent mixing and backflow into the metering line.
  • Used as a back pressure generator – in systems with a free outlet, to generate a defined back pressure.

Lip Seal Injection Valve PCB

To fit peristaltic pumps of the product range DULCO®flex DF2a.

Injection valve specially designed for metering sodium-calcium hypochlorite.

PVC housing, FKM seals, priming pressure approx. 0.05 bar.

Applications when using appropriate metering lines

25 °C - max. operating pressure 2 bar

45 °C - max. operating pressure 2 bar

ConnectionoØ x iØAFig.Order no.
mm mm
6/4 - R 1/2 - 1/4 for PE/PTFE pipe6 x 490pk_1_0701019953
10/4 - R 1/2 - 1/4 for PE/PTFE pipe10 x 490pk_1_0701024697
  • pk_1_070
    pk_1_070

Metering Connector for Warm Water up to 200 °C

Consisting of injection valve made of stainless steel no. 1.4404, 1 m metering line made of stainless steel no. 1.4571 and transition joints with support insert to connect PE/PTFE with stainless steel line. Max. operating pressure 30 bar.

ConnectionFig.Order no.
Warm water 6 mm - R 1/4pk_1_049913166
Warm water 6 mm - R 1/2pk_1_049913167
Warm water 8 mm - R 1/2pk_1_049913177
Warm water 12 mm - R 1/2pk_1_049913188
  • pk_1_049
    pk_1_049

PCB Injection Valve O-Ring Loaded

PVC housing, FKM seals, loaded O-ring, priming pressure approx. 0.5 bar.

Applications when using appropriate metering lines

25 °C - max. operating pressure 16 bar

45 °C - max. operating pressure 7 bar

ConnectoroØ x iØFig.Order no.
mm
6/4 - G 1/4 short6 x 4P_AC_0008_SW914558
6/4 - G 1/4 long6 x 4P_AC_0009_SW915091
  • p_ac_0008_sw
    p_ac_0008_sw
  • p_ac_0009_sw
    p_ac_0009_sw

PCB Injection Valve

PVC housing, FKM seals, with Hastelloy C spring-loaded check ball, priming pressure approx. 0.5 bar, with extra-long screw-in fitting. Version 8/4 up to 25 bar.

Application when using appropriate metering line

25 °C – max. operating pressure 25 bar for design 8/4

25 °C – max. operating pressure 16 bar

45 °C – max. operating pressure 7 bar

ConnectionoØ x iØAFig.Order no.
mm mm
6/4 - R 1/2 for PE/PTFE pipe6 x 4119pk_1_105924680
8/4 - R 1/2 for PTFE line8 x 4119pk_1_1051034621
8/5 - R 1/2 for PE/PTFE pipe8 x 5119pk_1_105924592
12/9 - R 1/2 for PE/PTFE pipe12 x 9119pk_1_105924594
10/4 - R 1/2 for PVC hose10 x 4119pk_1_1051002919
12/6 - R 1/2 for PVC hose12 x 6119pk_1_105924593
6/4 - G 1/4 for PE/PTFE pipe*6 x 462–914559
*Spring made of 1.4571, approx. 0.8 bar priming pressure.
  • pk_1_105
    pk_1_105
  • pk_2_029
    pk_2_029

PP/PTFE Injection Valve

PP housing, EPDM seals, with Hastelloy C spring-loaded check ball, priming pressure approx. 0.5 bar.

PTFE screw-in part to prevent deposits.

Applications when using appropriate metering lines

25 °C - max. operating pressure 16 bar

45 °C - max. operating pressure 9 bar

ConnectionoØ x iØAFig.Order no.
mm mm
6/4 - R 1/2 for PE/PTFE pipe6 x 4103pk_1_046924588
8/5 - R 1/2 for PE/PTFE pipe8 x 5103pk_1_046924589
12/9 - R 1/2 for PE/PTFE pipe12 x 9106pk_1_046924590
10/4 - R 1/2 for PVC hose10 x 4106pk_1_0461002923
12/6 - R 1/2 for PVC hose12 x 6106pk_1_046924591
  • pk_1_046
    pk_1_046

PPB Injection Valve O-Ring Loaded

PP housing, FKM seals, loaded O-ring, priming pressure approx. 0.5 bar.

Applications when using appropriate metering lines

25 °C - max. operating pressure 16 bar

45 °C - max. operating pressure 9 bar

ConnectoroØ x iØFig.Order no.
mm
6/4 - G 1/4 short6 x 4P_AC_0008_SW914754
6/4 - G 1/4 long6 x 4P_AC_0009_SW741193
  • p_ac_0008_sw
    p_ac_0008_sw
  • p_ac_0009_sw
    p_ac_0009_sw

PPB Injection Valve

PP housing, FKM seals, with Hastelloy C spring-loaded check ball, priming pressure approx. 0.5 bar.

Applications when using appropriate metering lines

25 °C - max. operating pressure 16 bar

45 °C - max. operating pressure 9 bar

ConnectionoØ x iØAFig.Order no.
mm mm
6/4 - R 1/2 for PE/PTFE pipe6 x 4119pk_1_105924682
8/5 - R 1/2 for PE/PTFE pipe8 x 5119pk_1_105924687
12/9 - R 1/2 for PE/PTFE pipe12 x 9119pk_1_105924688
10/4 - R 1/2 for PVC hose10 x 4119pk_1_1051002921
12/6 - R 1/2 for PVC hose12 x 6119pk_1_105924689
  • pk_1_105
    pk_1_105
  • pk_2_029
    pk_2_029

PPE Injection Valve

PP housing, EPDM seals, with Hastelloy C spring-loaded check ball, priming pressure approx. 0.5 bar, with extra-long screw-in fitting.

Applications when using appropriate metering lines

25 °C - max. operating pressure 16 bar

45 °C - max. operating pressure 9 bar

ConnectionoØ x iØAFig.Order no.
mm mm
6/4 - R 1/2 for PE/PTFE pipe6 x 4119pk_1_105924681
8/5 - R 1/2 for PE/PTFE pipe8 x 5119pk_1_105809476
12/9 - R 1/2 for PE/PTFE pipe12 x 9119pk_1_105809478
10/4 - R 1/2 for PVC hose10 x 4119pk_1_1051002920
12/6 - R 1/2 for PVC hose12 x 6119pk_1_105809477
6/4 - G 1/4 for PE/PTFE pipe*6 x 462pk_1_042914184
*Valve spring from stainless steel 1.4571, priming pressure approx. 0.8 bar
  • pk_1_105
    pk_1_105
  • pk_1_042
    pk_1_042
  • pk_2_029
    pk_2_029

PTFE Injection Valve O-Ring Loaded

PTFE housing, FKM seals, loaded O-ring, priming pressure approx. 0.5 bar.

Applications when using appropriate metering lines

25 °C - max. operating pressure 10 bar

45 °C - max. operating pressure 6 bar

ConnectionoØ x iØAFig.Order no.
mm mm
6/4 – for PE/PTFE line6 x 4104P_AC_0183_SW809484
8/5 – for PE/PTFE line8 x 5104P_AC_0183_SW809485
10/4 – for PVC hose10 x 4104P_AC_0183_SW1002925
12/6 – for PVC hose12 x 6104P_AC_0183_SW809487
12/9 – for PE/PTFE line12 x 9104P_AC_0183_SW809486
  • p_ac_0183_sw
    p_ac_0183_sw

PVC/PTFE Injection Valve

PVC housing, FKM seals, with Hastelloy C spring-loaded check ball, priming pressure approx. 0.5 bar.

PTFE screw-in part to prevent deposits.

Applications when using appropriate metering lines

25 °C - max. operating pressure 16 bar

45 °C - max. operating pressure 7 bar

ConnectoroØ x iØFig.Order no.
mm
6/4 - R 1/2 for PE/PTFE pipe6 x 4pk_1_046809450
8/5 - R 1/2 for PE/PTFE pipe8 x 5pk_1_046809451
12/9 - R 1/2 for PE/PTFE pipe12 x 9pk_1_046809452
10/4 - R 1/2 for PVC hose10 x 4pk_1_0461002924
12/6 - R 1/2 for PVC hose12 x 6pk_1_046809453
  • pk_1_046
    pk_1_046

PVT Injection Valve with Tantalum Spring

Injection valve specially designed for metering sodium-calcium hypochlorite, with universal hose connector kit 6 x 4, 8 x 4, 8 x 5, 12 x 9, 10 x 4 and 12 x 6 mm.

PVDF housing, PTFE seals, with tantalum spring-loaded check ball, priming pressure approx. 0.5 bar, with extra-long screw-in fitting.

Application when using appropriate metering line

25 °C – max. operating pressure 25 bar for design 8x4

25 °C – max. operating pressure 20 bar for design 6x3

25 °C – max. operating pressure 16 bar

45 °C – max. operating pressure 12 bar

ConnectionAFig.Order no.
mm
Universal connector, R 1/2119pk_1_1051044653
  • pk_1_105
    pk_1_105

PVT Injection Valve

PVDF housing, PTFE seals, with Hastelloy C spring-loaded check ball, priming pressure approx. 0.5 bar, with extra-long screw-in fitting. 1.4571 spring with FDA-compliant design.

Application when using appropriate metering line

25 °C – max. operating pressure 25 bar for design 8/4

25 °C – max. operating pressure 20 bar for design 6/3

25 °C – max. operating pressure 16 bar

45 °C – max. operating pressure 12 bar

ConnectionoØ x iØAFig.Order no.
mm mm
6/3 - R 1/2 for PTFE pipe6 x 3119pk_1_1051024713
6/4 - R 1/2 for PE/PTFE pipe6 x 4119pk_1_1051024708
8/4 - R 1/2 for PTFE line8 x 4119pk_1_1051034619
8/5 - R 1/2 for PE/PTFE pipe8 x 5119pk_1_1051024710
12/9 - R 1/2 for PE/PTFE pipe12 x 9119pk_1_1051024711
10/4 - R 1/2 for PVC hose10 x 4119pk_1_1051024709
12/6 - R 1/2 for PVC hose12 x 6119pk_1_1051024712
Universal – R 1/2 FDA-compliant6 x 4 - 12 x 9119pk_1_1051081423
  • pk_1_105
    pk_1_105
  • pk_2_029
    pk_2_029

SST Injection Valve

Housing made of stainless steel no. 1.4404, PTFE seals, with Hastelloy C spring-loaded check ball, priming pressure approx. 0.5 bar, with R 1/4 spring made of stainless steel no. 1.4571, priming pressure approx. 1 bar. A support insert is required to connect PE / PTFE lines. 1.4571 spring with FDA-compliant design.

Applications when using appropriate metering lines

25 °C - max. operating pressure 30 bar

45 °C - max. operating pressure 30 bar

ConnectionoØ x iØAFig.Order no.
mm mm
6 mm - R 1/2 for pipe6 x 593pk_1_032_1809489
8 mm - R 1/2 for pipe8 x 793pk_1_032_1809482
12 mm - R 1/2 for pipe12 x 1096pk_1_032_1809483
1/4" NPT - R 1/2 for pipeR 1/4" NPT89pk_1_032_2924597
6 mm - R 1/4 for pipe–P_AC_0253_SW914588
6 mm - R 1/2 for pipe, FDA-compliant6 x 593pk_1_032_11081482
8 mm - R 1/2 for pipe, FDA-compliant8 x 793pk_1_032_11081483
12 mm - R 1/2 for pipe, FDA-compliant12 x 1096pk_1_032_11081504
  • pk_1_032_1
    pk_1_032_1
  • pk_1_032_2
    pk_1_032_2
  • p_ac_0253_sw1
    p_ac_0253_sw1
  • pk_2_030
    pk_2_030

TTT Injection Valve

PTFE housing and seals, with check ball, without spring. Valve springs (order no. 469404) can be retrofitted. For vertical installation from below.

Applications when using appropriate metering lines

25 °C - max. operating pressure 10 bar

45 °C - max. operating pressure 5 bar

ConnectionoØ x iØAFig.Order no.
mm mm
6/4 - R 1/2 for PE/PTFE pipe6 x 498P_AC_0184_SW809488
8/5 - R 1/2 for PE/PTFE pipe8 x 598P_AC_0184_SW809479
12/9 - R 1/2 for PE/PTFE pipe12 x 9101P_AC_0184_SW809481
12/6 - R 1/2 for PVC hose12 x 6101P_AC_0184_SW809480
  • p_ac_0184_sw
    p_ac_0184_sw
  • pk_2_030
    pk_2_030

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Overview

The right support for every metering task

Injection valves are mounted at the point of injection to connect the metering line. They protect against backflow and generate a defined back pressure.

With the PP, PVC, PVDF and stainless steel version, the injection valve with ball check is spring-loaded with a Hastelloy C spring, priming pressure approx. 0.5 bar (with R1/4 connector, spring made of stainless steel no. 1.4571, priming pressure approx. 1 bar). They may be fitted in any position.

The TT version without a spring is suitable for vertical installation from below. Valve springs can be retrofitted.

Injection valve sizes DN 10 and 15 have union nuts and inserts / hose nozzles in the scope of delivery.

Important: Injection valves are not absolutely leak-tight shut-off devices!

Your benefits

  • Used as a non-return valve – in closed pipe systems to prevent mixing and backflow into the metering line.
  • Used as a back pressure generator – in systems with a free outlet, to generate a defined back pressure.

Technical Data

Downloads

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