Injection Valve for Low-Pressure Metering Pumps

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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.

In the PP, PVC, PVDF and stainless steel versions, 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.

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.

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

Connection	oØ x iØ	A	Fig.	Order no.
	mm	mm
6/4 - R 1/2 for PE/PTFE pipe	6 x 4	119	pk_1_105	924681
8/5 - R 1/2 for PE/PTFE pipe	8 x 5	119	pk_1_105	809476
12/9 - R 1/2 for PE/PTFE pipe	12 x 9	119	pk_1_105	809478
10/4 - R 1/2 for PVC hose	10 x 4	119	pk_1_105	1002920
12/6 - R 1/2 for PVC hose	12 x 6	119	pk_1_105	809477
6/4 - G 1/4 for PE/PTFE pipe*	6 x 4	62	pk_1_042	914184
G 3/4 - DN 10 for PVC hose	24 x 16	83	pk_2_029	809461

*	Valve spring from stainless steel 1.4571, priming pressure approx. 0.8 bar

pk_1_105

pk_1_042

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

Connection	oØ x iØ	A	Fig.	Order no.
	mm	mm
6/4 - R 1/2 for PE/PTFE pipe	6 x 4	103	pk_1_046	924588
8/5 - R 1/2 for PE/PTFE pipe	8 x 5	103	pk_1_046	924589
12/9 - R 1/2 for PE/PTFE pipe	12 x 9	106	pk_1_046	924590
10/4 - R 1/2 for PVC hose	10 x 4	106	pk_1_046	1002923
12/6 - R 1/2 for PVC hose	12 x 6	106	pk_1_046	924591

pk_1_046

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

Connector	oØ x iØ	Fig.	Order no.
	mm
6/4 - R 1/2 for PE/PTFE pipe	6 x 4	pk_1_046	809450
8/5 - R 1/2 for PE/PTFE pipe	8 x 5	pk_1_046	809451
12/9 - R 1/2 for PE/PTFE pipe	12 x 9	pk_1_046	809452
10/4 - R 1/2 for PVC hose	10 x 4	pk_1_046	1002924
12/6 - R 1/2 for PVC hose	12 x 6	pk_1_046	809453

pk_1_046

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

Connection	oØ x iØ	A	Fig.	Order no.
	mm	mm
6/4 - R 1/2 for PE/PTFE pipe	6 x 4	119	pk_1_105	924680
8/4 - R 1/2 for PTFE line	8 x 4	119	pk_1_105	1034621
8/5 - R 1/2 for PE/PTFE pipe	8 x 5	119	pk_1_105	924592
12/9 - R 1/2 for PE/PTFE pipe	12 x 9	119	pk_1_105	924594
10/4 - R 1/2 for PVC hose	10 x 4	119	pk_1_105	1002919
12/6 - R 1/2 for PVC hose	12 x 6	119	pk_1_105	924593
6/4 - G 1/4 for PE/PTFE pipe*	6 x 4	62	–	914559
G 3/4 - DN 10 for PVC hose	24 x 16	83	pk_2_029	809460

*	Spring made of 1.4571, approx. 0.8 bar priming pressure.

pk_1_105

pk_2_029

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

Connection	oØ x iØ	A	Fig.	Order no.
	mm	mm
6/4 - R 1/2 for PE/PTFE pipe	6 x 4	119	pk_1_105	924682
8/5 - R 1/2 for PE/PTFE pipe	8 x 5	119	pk_1_105	924687
12/9 - R 1/2 for PE/PTFE pipe	12 x 9	119	pk_1_105	924688
10/4 - R 1/2 for PVC hose	10 x 4	119	pk_1_105	1002921
12/6 - R 1/2 for PVC hose	12 x 6	119	pk_1_105	924689
G 3/4 - DN 10 for PVC hose	24 x 16	83	pk_2_029	790191

pk_1_105

pk_2_029

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

Connection	oØ x iØ	A	Fig.	Order no.
	mm	mm
6/3 - R 1/2 for PTFE pipe	6 x 3	119	pk_1_105	1024713
6/4 - R 1/2 for PE/PTFE pipe	6 x 4	119	pk_1_105	1024708
8/4 - R 1/2 for PTFE line	8 x 4	119	pk_1_105	1034619
8/5 - R 1/2 for PE/PTFE pipe	8 x 5	119	pk_1_105	1024710
12/9 - R 1/2 for PE/PTFE pipe	12 x 9	119	pk_1_105	1024711
10/4 - R 1/2 for PVC hose	10 x 4	119	pk_1_105	1024709
12/6 - R 1/2 for PVC hose	12 x 6	119	pk_1_105	1024712
G 3/4 - DN 10 with pressure hose nozzle d16 - DN 10.	24 x 16	84	pk_2_029	1029476
Universal – R 1/2 FDA-compliant	6 x 4 - 12 x 9	119	pk_1_105	1081423

pk_1_105

pk_2_029

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 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

Connection	A	Fig.	Order no.
	mm
Universal connector, R 1/2	119	pk_1_105	1044653

pk_1_105

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

Connection	oØ x iØ	A	Fig.	Order no.
	mm	mm
6/4 - R 1/2 for PE/PTFE pipe	6 x 4	98	P_AC_0184_SW	809488
8/5 - R 1/2 for PE/PTFE pipe	8 x 5	98	P_AC_0184_SW	809479
12/9 - R 1/2 for PE/PTFE pipe	12 x 9	101	P_AC_0184_SW	809481
12/6 - R 1/2 for PVC hose	12 x 6	101	P_AC_0184_SW	809480
G 3/4 - DN 10 with d16 welding sleeve		–	pk_2_030	809462

p_ac_0184_sw

pk_2_030

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

Connection	oØ x iØ	A	Fig.	Order no.
	mm	mm
6 mm - R 1/2 for pipe	6 x 5	93	pk_1_032_1	809489
8 mm - R 1/2 for pipe	8 x 7	93	pk_1_032_1	809482
12 mm - R 1/2 for pipe	12 x 10	96	pk_1_032_1	809483
1/4" NPT - R 1/2 for pipe	R 1/4" NPT	89	pk_1_032_2	924597
6 mm - R 1/4 for pipe		–	P_AC_0253_SW	914588
G 3/4 - DN 10, sleeve	Rp 3/8	–	pk_2_030	809463
6 mm - R 1/2 for pipe, FDA-compliant	6 x 5	93	pk_1_032_1	1081482
8 mm - R 1/2 for pipe, FDA-compliant	8 x 7	93	pk_1_032_1	1081483
12 mm - R 1/2 for pipe, FDA-compliant	12 x 10	96	pk_1_032_1	1081504

pk_1_032_1

pk_1_032_2

p_ac_0253_sw1

pk_2_030

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

Connector	oØ x iØ	Fig.	Order no.
	mm
6/4 - G 1/4 short	6 x 4	P_AC_0008_SW	914754
6/4 - G 1/4 long	6 x 4	P_AC_0009_SW	741193

p_ac_0008_sw

p_ac_0009_sw

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

Connector	oØ x iØ	Fig.	Order no.
	mm
6/4 - G 1/4 short	6 x 4	P_AC_0008_SW	914558
6/4 - G 1/4 long	6 x 4	P_AC_0009_SW	915091

p_ac_0008_sw

p_ac_0009_sw

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

Connection	oØ x iØ	A	Fig.	Order no.
	mm	mm
6/4 – for PE/PTFE line	6 x 4	104	P_AC_0183_SW	809484
8/5 – for PE/PTFE line	8 x 5	104	P_AC_0183_SW	809485
10/4 – for PVC hose	10 x 4	104	P_AC_0183_SW	1002925
12/6 – for PVC hose	12 x 6	104	P_AC_0183_SW	809487
12/9 – for PE/PTFE line	12 x 9	104	P_AC_0183_SW	809486

p_ac_0183_sw

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

Connection	oØ x iØ	A	Fig.	Order no.
	mm	mm
6/4 - R 1/2 - 1/4 for PE/PTFE pipe	6 x 4	90	pk_1_070	1019953
10/4 - R 1/2 - 1/4 for PE/PTFE pipe	10 x 4	90	pk_1_070	1024697

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.

Connection	Fig.	Order no.
Warm water 6 mm - R 1/4	pk_1_049	913166
Warm water 6 mm - R 1/2	pk_1_049	913167
Warm water 8 mm - R 1/2	pk_1_049	913177
Warm water 12 mm - R 1/2	pk_1_049	913188

pk_1_049

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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.

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

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