Tefen Flow Products: Precision Fittings and Dosing Pumps for Industrial and Agricultural Fluid Systems

Tefen is an Israeli manufacturer established in 1970, widely recognised across European agricultural, chemical processing, and industrial fluid management markets for two product families: the MixRite water-driven proportional dosing pump and a comprehensive range of high-performance plastic flow fittings in PVDF, Polypropylene, and Nylon. Tefen fittings and connectors are widely used throughout European irrigation systems, fertigation installations, chemical dosing circuits, and industrial fluid handling — and wherever Tefen barbed fittings connect flexible hoses, correctly specified hose clamps are required to secure the connection reliably.

This guide covers Tefen's product range and — critically for procurement teams specifying complete fluid handling systems — the correct HCL hose clamp specifications for securing flexible hoses to Tefen barbed fittings across agricultural, chemical, and food-grade applications.

The MixRite Dosing Pump: Water-Driven Proportional Injection

The MixRite is Tefen's flagship product — a water-driven proportional dosing pump that injects liquid concentrate (fertilisers, crop protection chemicals, cleaning agents, veterinary medications) directly into a water line without requiring any electrical power source. The pump is driven entirely by the flow energy of the main water supply — making it ideal for remote agricultural locations, outdoor irrigation systems, and livestock watering installations where power supply is unavailable or impractical.

Key characteristics of MixRite technology:

• Consistent proportionality: Injection ratio remains constant regardless of fluctuations in mains water pressure or flow rate — a critical requirement for accurate fertigation where fertiliser concentration must be maintained across variable flow conditions
• No electricity required: Water pressure drives the pump mechanism — no power supply, no electrical safety risk in wet agricultural environments
• Variable injection ratios: Different MixRite models cover injection ratios from 0.2% to 5% and flow rates from small animal dosing to large-scale irrigation systems
• Compliance: MixRite dosing systems used in agricultural fertigation must comply with EU Plant Protection Products Regulation (EC) 1107/2009 for pesticide application equipment and the Sustainable Use of Pesticides Directive 2009/128/EC

Tefen Flow Fittings: Material Options and Applications

Beyond dosing pumps, Tefen manufactures a comprehensive range of plastic flow fittings — barbed connectors, push fittings, valves, and quick-release couplings in engineering-grade thermoplastics selected for each application's chemical and temperature requirements:

Material	Properties	Primary Applications
PVDF (Polyvinylidene Fluoride)	High-purity, excellent chemical resistance, UV stable, 120°C service temperature. NSF/ANSI 61 (drinking water) and FDA 21 CFR compliant.	Semiconductors, pharmaceutical water systems, water distillation, food contact, chemical processing with aggressive acids/bases
Polypropylene (PP)	Good general chemical resistance, lightweight, cost-effective. Compatible with a broad range of fertilisers and agrochemicals at normal working concentrations.	Agricultural irrigation and fertigation, general chemical dosing, industrial water treatment
Nylon (PA66)	Higher mechanical strength than PP, good chemical resistance for general-purpose fluid handling.	General industry, pneumatics, hydraulics, garden and horticultural irrigation

Tefen's quality management is certified to ISO 9001:2015. The PVDF line carries NSF/ANSI 61 certification for drinking water contact and FDA 21 CFR and EU Regulation 1935/2004 approval for food contact applications — making Tefen PVDF fittings compliant for food and beverage and pharmaceutical process systems where material contact safety must be documented.

Securing Hoses to Tefen Fittings: Correct Hose Clamp Specification

Tefen barbed fittings — the connectors that flexible hoses attach to — require correctly specified hose clamps to complete the secure, leak-free connection. The choice of hose clamp material and type must match the Tefen fitting's intended application environment:

Agricultural Fertigation and Irrigation — W4 Stainless or Polymer

MixRite dosing pump inlet and outlet hose connections, fertigation distribution manifold connections, and irrigation system branch hose connections using Tefen PP barbed fittings require clamps that resist outdoor UV exposure and fertiliser chemistry:

• Mikalor ASFA-S W4 — full 304SS for outdoor agricultural use; resists UV, outdoor humidity, and the pH range of diluted fertiliser solutions without corrosion or screw seizure
• Herbie Clip PA66 — non-metallic polymer clamp for outdoor PP fitting connections where zero galvanic risk is required; UV-stabilised black PA66

Chemical Processing with Tefen PVDF Fittings — W5 or Polymer

Where Tefen PVDF fittings are specified for their chemical resistance to aggressive acids, bases, and solvents, the hose clamp must match PVDF's chemical resistance at the connection point:

• Mikalor ASFA-S W5 — full 316SS; the correct metallic specification for chemical processing environments where W4 would suffer chloride or acid-induced pitting
• Ezyclamp PA66 — adjustable polymer worm drive for connections on aggressive chemical lines where metallic clamps at the fitting contact zone would risk galvanic or chemical degradation; check PA66 compatibility against specific chemical species and concentration

Food Grade and Pharmaceutical Applications — W5 or Oetiker

Where Tefen PVDF fittings are used in food contact or pharmaceutical-adjacent fluid systems, clamp specification must match the fitting's NSF/ANSI 61 or EU 1935/2004 compliance level:

• Oetiker stepless ear clamps — permanent, uniform-crimp connection on food-grade and pharmaceutical PVDF fitting hose connections; REACH and RoHS compliant documentation available
• Mikalor ASFA-S W5 with material certificates — for re-tightenable service connections on food processing PVDF fitting installations requiring 316SS specification and EN 10204 3.1 material traceability

Industrial and General Purpose — W4 Worm Drive

For general industrial Tefen PP or Nylon fitting connections on pneumatic, hydraulic, and general fluid transfer systems:

• Jubilee W4 — rolled band edges protect PP and Nylon hose and fitting surfaces from abrasion; widely available for MRO replacement connections
• Mikalor ASFA-S W4 — embossed band for higher strength; the standard for industrial connections on Tefen nylon and PP fittings

Hose Clamp Selection for Tefen Fitting Applications

Tefen Application	Tefen Material	Recommended HCL Clamp
Agricultural fertigation and irrigation	PP, Nylon	Mikalor ASFA-S W4
Chemical dosing — aggressive media	PVDF, PP	Mikalor ASFA-S W5 or Ezyclamp PA66
Food and beverage processing	PVDF (NSF/FDA)	Oetiker stepless or Mikalor W5 with certs
General industrial fluid transfer	PP, Nylon	Jubilee W4 or Mikalor ASFA-S W4
Outdoor connections — no metallic contact	PP, PVDF	Herbie Clip PA66

Conclusion

Tefen's MixRite dosing pumps and PVDF, PP, and Nylon flow fittings serve demanding agricultural, chemical, food-grade, and industrial fluid management applications across Europe. Completing these installations correctly requires hose clamps matched to the Tefen fitting's material, the fluid chemistry, and the environmental exposure — W4 stainless for general agricultural and industrial, W5 316SS for chemical processing and food-grade, Oetiker stepless for permanent food/pharma connections, and PA66 polymer where zero metallic risk is specified. Browse HCL's Mikalor W4 and W5, polymer clamp range, and Oetiker ear clamps for Tefen fitting applications, or contact our technical team for clamp specification advice for your Tefen fitting installation.