HUPLONG INDUSTRIES (M) SDN BHD is the authorized distributor of NORRES industrial hoses in Malaysia.

HUPLONG supplies genuine NORRES screening machine hoses to customers throughout Malaysia. The range includes polyurethane hoses for connecting suitable vibration screening machines, tumbler screening machines, plansifters and windsifters in industrial material-processing systems.

Screening Machine Hoses

Applications and Hose Selection

NORRES offers an initial selection of hoses suitable for different types of screening machines. Depending on the individual product, the available polyurethane hoses may provide antistatic properties, food-contact suitability or a combination of both.

These screening machine hoses may be used as flexible connections on vibration screening machines, tumbler screening machines, plansifters and windsifters. The correct model must be selected according to the machine movement, conveyed material, required flexibility, hose diameter, operating temperature and applicable food-contact or antistatic requirements.

Models carrying the AS designation are identified as antistatic. Models carrying the FOOD designation are intended for suitable food-related applications, while FOOD-AS products combine food-contact suitability with antistatic properties according to their individual technical documentation.

NORRES Hose Developed for Screening Machines

NORRES developed PROTAPE® PUR-C 335 FOOD-AS FLAT specifically for screening machine applications. It is an abrasion-resistant and vibration-resistant polyurethane hose designed to provide a flexible connection between moving machine sections.

According to NORRES, PROTAPE® PUR-C 335 FOOD-AS FLAT has a food-compliant and permanently antistatic hose wall. Subject to correct product selection and installation, it can be used for suitable food-conveying applications and in potentially explosive areas.

The hose can be used on vibration screening machines, tumbler screening machines, plansifters and windsifters. NORRES highlights its flexibility and long service life for these moving and vibration-intensive connections.

Alternative NORRES Screening Machine Hoses

In addition to PROTAPE® PUR-C 335 FOOD-AS FLAT, NORRES particularly identifies the following products as alternative screening machine hoses:

• PROTAPE® PUR 301 AS (XLD)
• PROTAPE® PUR-INOX 330 FOOD-AS (LD)
• PROTAPE® PUR 330 FOOD (LD)

PROTAPE® PUR 330 AS (LD) is also included in the current NORRES screening machine hose selection. These models have different wall thicknesses, food-contact properties, reinforcement materials and antistatic characteristics. They must therefore not be treated as technically identical alternatives.

NORRES Screening Machine Hose Range

Click a NORRES hose model below to view the corresponding product information on the HUPLONG website.

• PROTAPE® PUR 301 AS (XLD)
• PROTAPE® PUR 330 AS (LD)
• PROTAPE® PUR-C 335 FOOD-AS FLAT
• PROTAPE® PUR 330 FOOD (LD)
• PROTAPE® PUR-INOX 330 FOOD-AS (LD)

Antistatic Properties and Explosion Protection

According to NORRES, all antistatic hoses presented in this application section have a permanently antistatic wall in accordance with ISO 8031, with an electrical and surface resistance below 10⁹ ohms.

NORRES also states that the antistatic hoses shown in this section are certified according to TRGS 727 and ATEX 2014/34/EU. The applicable grounding instructions, installation requirements and permitted operating conditions must be checked in the current technical documentation for the exact hose model.

Antistatic performance can be important because movement and friction involving dry conveyed materials may produce electrostatic charging. Where combustible materials or potentially explosive conditions are present, the complete system must be assessed and installed according to the applicable safety requirements.

Food-Contact Compliance

NORRES states that the food suitability of its hoses has been evaluated by an independent testing laboratory. For the applicable food-grade products in this range, NORRES refers to raw materials and additives complying with the following requirements:

• EU 10/2011
• EC 1935/2004
• EU 2015/174
• FDA 21 CFR 177.2600
• FDA 21 CFR 178.2010

Food-contact suitability must not be assumed for every hose listed on this page. Customers should check the official product page and current technical documentation for the exact model and intended food product.

Product and Flame-Retardant Standards

NORRES identifies PROTAPE® PUR 301 AS (XLD) as a Type 1 hose according to the product standard DIN EN 26057.

NORRES states that the following screening machine hoses are flame-retardant according to UL94-HB:

• PROTAPE® PUR 301 AS (XLD)
• PROTAPE® PUR 330 AS (LD)

The same two models are also identified by NORRES as flame-retardant according to DIN 4102-B1:

• PROTAPE® PUR 301 AS (XLD)
• PROTAPE® PUR 330 AS (LD)

These standards apply only to the specifically identified hose models. They should not be extended to other products in the screening machine range without confirmation from the current NORRES technical documentation.

Frequently Asked Questions

Q: What types of screening machines can use NORRES hoses?
A: Depending on the selected hose model, NORRES screening machine hoses may be used with vibration screening machines, tumbler screening machines, plansifters and windsifters.

Q: Which NORRES hose was developed specifically for screening machines?
A: NORRES developed PROTAPE® PUR-C 335 FOOD-AS FLAT specifically for screening machine applications. It is designed as a flexible, abrasion-resistant and vibration-resistant hose and compensator.

Q: Which NORRES hose can be used on a tumbler screening machine?
A: NORRES identifies PROTAPE® PUR-C 335 FOOD-AS FLAT for use on tumbler screening machines. It may also be used on vibration screening machines, plansifters and windsifters.

Q: Are all NORRES screening machine hoses suitable for food applications?
A: No. Food-contact suitability depends on the individual hose model. Products carrying the FOOD or FOOD-AS designation are identified for applicable food-related uses, subject to their current technical documentation.

Q: Are all hoses in this screening machine range antistatic?
A: No. Antistatic models are identified by the AS designation. Their electrical properties, permitted applications and grounding requirements must be verified before installation.

Q: Why should a screening machine hose be resistant to microbes?
A: Contact with organic materials such as soil can expose a hose to microbial attack. A hose without suitable microbe resistance may deteriorate and eventually become unusable under these operating conditions.

Q: Which NORRES screening machine hoses are flame-retardant?
A: NORRES identifies PROTAPE® PUR 301 AS (XLD) and PROTAPE® PUR 330 AS (LD) as flame-retardant according to UL94-HB and DIN 4102-B1.

Q: How can customers select a suitable NORRES screening machine hose in Malaysia?
A: Customers may contact HUPLONG INDUSTRIES (M) SDN BHD with information about the screening machine type, conveyed material, required internal diameter, hose length, operating temperature and any food-contact, antistatic, flame-retardant or explosion-protection requirements.

Final hose selection must be based on the current NORRES product information and technical documentation for the individual model.