Hose Pump Hose | Watson Marlow Bredel

The hose element is critical to ensure pump performance, durability and efficiency. Bredel composite reinforced hoses are constructed from high-quality compounded rubbers reinforced with several individual layers of braided nylon, and finished by high-precision machining. Inner and outer layers are extruded and, after construction, machined to ensure critical tolerances are maintained.

Perfect 100% compression eliminates slippage which can destroy shear sensitive product and reduce metering accuracy.

Key features of Bredel hose elements include:

• Tight tolerances for low stress on bearings

• Perfect compression for long life

• Excellent suction performance – 30ft suction lift

• High pressure capability – up to 116 psi

• Repeatable volumetric accuracy to ± 1%

• Consistent capacity independent of varying suction and discharge conditions

• Exceptional performance when handling high viscosity product
  

The key element in every Watson-Marlow Bredel hosepump is a superior composite reinforced hose. Constructed from high quality compounded rubbers, the hose is reinforced with four layers of braided nylon and finished by high precision machining. Since rubber cannot be over- or under- compressed, hose life and pump efficiency are both increased.

Watson-Marlow Bredel hoses offer:

• Consistent tolerances, quality and shimming

• Improved life from reduced friction

• Excellent suction performance

• High pressure capability

• Volumetric accuracy

• Exceptional performance when handling highly viscous liquids

The hose is available with four different liner materials to suit a wide range of chemical compatibilities:*

1. Natural rubber – highly resilient with excellent abrasion resistance and mechanical strength. Resistant to dilute acids and alcohols. Liquid temperature range from -20° C (-5° F) to 80° C (175° F)

2. Hypalon – Excellent chemical resistance, recommended for strong oxidizing products like concentrated acids, alkaline liquids and oxygen generating substances such as hydrogen peroxide temperature from –10° C (14° F) to 80° C (176° F) Note: Pump speed may be limited with hypalon hose

3. Buna N (NBR) – FDA, USDA and 3A approved. Highly abrasion and wear resistant. Compatible with oils, fats, alkalines and detergents. Suitable for a wide range of food applications. Liquid temperature range from -10° C (20° F) to 80° C (175° F)

4. EPDM – excellent chemical resistance, especially to concentrated acids, ketones and alcohols. Liquid tem perature range from -10° C (20° F) to 80° C (175° F)

*Consult Watson-Marlow Bredel technical services for details on operation up to 90° C (195° F). Please consult your Watson-Marlow/Bredel representative for further details on chemical compatibility.

	EPDM Excellent chemical resistance, especially to ketones, alcohols and concentrated acids. Max. fluid temperature: 194ºF Min. fluid temperature: 14ºF
	APEX EPDM Excellent chemical resistance, especially to ketones, alcohols and concentrated acids. Max. fluid temperature: 194ºF Min. fluid temperature: 14ºF
	Natural Rubber (NR) Endurance Outstanding abrasion resistance. Generally resistant to diluted acids and alcohols.   Max. fluid temperature: 176ºF Min. fluid temperature: -4ºF
	APEX NR Outstanding abrasion resistance. Generally resistant to diluted acids and alcohols. Max. fluid temperature: 176ºF Min. fluid temperature: -4ºF
	Buna N (NBR) Resistant to oils, greases, alkalis and detergents. Max. fluid temperature: 176ºF Min. fluid temperature: 14ºF
	APEX NBR Meets FDA and 3A compliance. Resistant to oils, greases, alkalis and detergents. Max. fluid temperature: 176ºF Min. fluid temperature: 14ºF
	F NBR Suitable for all food products including oils and greases. Meets FDA, EC, EHEDG and 3A standards. Max. fluid temperature: 176ºF Min. fluid temperature: 14ºF
	APEX f-NBR Suitable for all food products including oils and greases. Meets FDA, EC, EHEDG and 3A standards. Available for APEX 10/15/20 pumps only. Max. fluid temperature: 80ºC Min. fluid temperature: -10ºC
	CSM Outstanding resistance to strong, oxidising products and concentrated acids and bases. Max. fluid temperature: 176ºF Min. fluid temperature: 14ºF
	APEX CSM Outstanding resistance to strong, oxidising products and concentrated acids and bases. Max. fluid temperature: 176ºF Min. fluid temperature: 14ºF
	Bioprene Meets FDA standards, resistant to alcohols, acids and oxidising products. Max. fluid temperature: 140ºF Min. fluid temperature: 32ºF