AWE Automated Water & Effluent Ltd

Dosing Pump Accessories

Electronic dosing pumps are supplied with all the dosing pump accessories to get started (excluding high viscosity and pneumatic pumps) which comprise of a short length of soft PVC suction hose a foot valve and strainer assembly, a short length of LDPE dosing hose and an injection fitting. Additional items to help make a safe and reliable dosing system, able to provide many years of cost effective operation are as follows.

Dosing Accessories: Suction Hoses

Dosing Pump Accessores: Clear PVC Hose and LDPE Tubing

Soft PVC dosing hose may be ordered on coils of 30 or 100 meters length as this is not pressure rated it is only for use on the suction side of the pump.

For dosing we are able to supply LDPE dosing tubing on coils of 30 or 100 meters length. For greater chemical resistance we supply PVDF dosing tubing again on coils of 30 or 100 meters length. To special order we have available PTFE dosing tubing. When using any dosing tubing especially PTFE please ensure the pressure rating of the dosing pump cannot exceed the safe working pressure of the dosing hose. Our recommendations are that all dosing tubing is run inside a second tube for addition mechanical protection and to protect personal against any possibility of chemicals leaking.

Multifunction Valve - Dosing Accessories

Our new improved multifunction valve model AC-VM-PVDF.

The AV-VM-PVDF is manufactured in PVDF for greater chemical resistance and features an anti-syphon valve, back pressure valve, and safety valve function in one valve. The AC-VM-PVDF has adjustable pressure of 0-5.0 bar and safety valve user adjustable between 0 - 19.0 Bar. The AC-VM is available for dosing pumps with 4 x6mm dosing tube size and 8 x 12mm dosing tube size. It also available with Viton or EPDM seals.

Specific order numbers are as follows:

  • 11243-PVDF:- Multifunction valve for 4 x 6mm Tubing with Viton Seals.

  • 11243LP-PVDF:- Multifunction valve for 4 x 6mm Tubing with EPDM Seals.

  • 11243GP-PVDF:- Multifunction valve for 8 x 12mm Tubing with Viton Seals.

  • 11243-PVDF:- Multifunction valve for 8 x 12mm Tubing with Viton Seals.

Suction Lance Assemblies - Dosing Accessories

AC.LA Suction lance assembly for use with chemical dosing pumps custom sized suction lance assembly in PVC

The AC.LA suction lance assembly is designed for use where a chemical is to be lifted from a chemical container - such as a chemical dosing tanks, chemical carboys, or chemical drums.

The suction lance assemblies comprise of an integrated low level float switch - which can be used to stop a dosing pump from operating when a low chemical level is present.

In addition to the low level control - the suction lance assembly comprises of a foot valve and strainer assembly with integral non-return valve to help maintain a consistently primed pump.

Installation of the suction lance is simple - the unit is placed into the container where the dosed chemical is stored and held into place using the conical flange. The float switch connections are wired into the appropriate dosing pump connections (or even a PLC / Controller) and the suction line is connected to the dosing pump - ensuring that all relevant healthy and safety guidelines are followed.

We offer a range of ex-stock suction lances from our AC.LA range - these include short suction lances to suction lances in excess of 1100mm. We also offer a range of hose sizes in the standard AC.LA range.

In addition to our standard AC.LA range we can offer custom manufactured suction lance assemblies in a range of materials and sizes. These include wetted parts in PTFE and PVDF for use with Hydrofluoric (HF) Acid.

Flow Sensor - Dosing Pump Accessories

Flow Sensor for dosing pump

The AC.SF Flow sensor range is designed to fit on top of our range of Red Dosing Pumps and Black Dosing Pumps. The flow sensor screws on top in place of the discharge valve and the discharge tubing screws on top of the flow sensor.

Where the pump makes a stroke and the discharged fluid passes the AC.SF Flow Sensor a pulse from the volt free contact is generated by the flow sensor.

This pulsed output can then be connected to a PLC, Batch Counter, or even another dosing pump for the precision measurement of the pump output.

For increased precision the AC.SF is fitted with a potentiometer for adjusting the sensitivity. Where a fluid with a high SG (Specific Gravity) is being dosed the sensitivity may need to be decreased or with a pump operating at a high number of stokes per minute - the sensitivity may need increasing.

The AC.SF is available with a range of wetted parts and in a variety of sizes to suit most chemical requirements and pump outputs.

Injection Valves - Dosing Pump Accessories

PVDF Injection Valve

We offer ex-stock deliveries on injection valves - which are threaded to either 3/8" or 1/2" depending on your installation type. The injection valves are available in either PVC or PVDF and have a Hastelloy spring and ball valve operated non-return valve.

The following part numbers are normally available ex-stock:-

Injection Valves

Part No.

Material

Hose

Seals

Valve

10413PVC

PVC

4x6

Viton

Ceramic

10413EPVC

PVC

4x6

EPDM

Ceramic

10413PVCGP

PVC

8x12

Viton

Ceramic

10413EPVCGP

PVC

8x12

EPDM

Ceramic

10413P

PVDF

4x6

Viton

Ceramic

10413EP

PVDF

4x6

EPDM

Ceramic

10413GP

PVDF

8x12

Viton

Ceramic

10413EPGP

PVDF

8x12

EPDM

Ceramic

We are also able to offer injection valves fitted with PTFE balls and seals for use in Hydrofluoric acid (HF Acid) applications as well as injection valves suitable for use with the 8 x 10 tubing.

Foot valve & Strainer Assemblies:-
Dosing Pump Accessories

PVDF Foot valve and strainer assembly with built in non-return valve for use with dosing pumps

In addition to our range of injection valves we are also able to offer suction valve and strainer assemblies which include a non-return valve to assist with ensuring that the pump is consistently primed.

The following models of foot valve and strainer assemblies are normally available ex-stock:-

Foot Valve & strainer Assemblies

Part No.

Material

Hose

Seals

Valve

10414PVC

PVC

4x6

Viton

Ceramic

10414EPVC

PVC

4x6

EPDM

Ceramic

10414PVCGP

PVC

8x12

Viton

Ceramic

10414EPVCGP

PVC

8x12

EPDM

Ceramic

10414P

PVDF

4x6

Viton

Ceramic

10414EP

PVDF

4x6

EPDM

Ceramic

10414GP

PVDF

8x12

Viton

Ceramic

10414EPGP

PVDF

8x12

EPDM

Ceramic

In addition to the standard models we are able to offer foot valve & strainer assemblies with PTFE seals and ball valves.

Self Venting or Degassing Heads

Auto Venting and Degassing Head for Dosing Pumps

The Self Venting Head or Auto Degassing Head is designed for use with reagents with a low surface tension, or which are prone to gassing - such as Chlorites and Hydrogen Peroxide.

Where a vapourous chemical can cause the head to become air locked due to the presence of a compressible fluid - the degassing or self venting head ensures that the air lock is automatically relieved ensuring uninterrupted operation of the chemical metering pump.

The self venting or degassing head has model number 7175 and is compatible with our AT1, AT2 and AT3 series of red dosing pump.

Wetted parts are specified on ordering

Injection Quills - Dosing Pump Accessories

SS dosing Quill

Injection quills are useful when dosing into large diameter pipework to ensure the chemical being dose is injected into the centre of the pipe and hence the flow.

INR-V (D) Injection quill with NRV and ball valve in PVC with Viton / EPDM “O” rings.

SS-INJ - Q Injection quill with ball valve in 3/8 “ 316 stainless steel

Dosing Skids & Frames

Dosing Accessories: Dosing Skids & Frames

Custom designed and built systems for mounting dosing pumps either inside enclosures with isolating valves all ready pipe up and assembled. Supplied on simple polypropylene frames to hold chemical drums with bunded areas. Ready assembled at our facility for quick simple and easy site installation.

To check the output of dosing systems calibration cylinders can be fitted to the suction side of the dosing pump with the necessary valves. A measured volume of chemical reagent can then be added the calibration cylinder. The pump can then be timed while the know volume is pumped and hence the pump output calculated.

Contact sales on 01785 254 597 for more information on Dosing Pump Accessories or to purchase our products.