SIR acknowledgment for approving hoses for industrial cleaning

Since December 2014, Bijl & de Jong is a SIR acknowledged for proving pressure / vacuum equipment. Both our offices in Emmeloord and in Raamsdonkveer have been acknowledged. Obviously there are DVK inspectors present at both locations for Pressure Vacuum testing.


SIR Hydrostatic pressure testingSIR - Stichting Industriële Reiniging

Are performed according to the requirements prescribed by the SIR (Industrial Cleaning Association).


Inland shipping testing (ADN)Inspectie Leefomgeving en Transport - ADN - ADNR - Rijnvaart

Besides the acknowledgment of the SIR, the offices in Emmeloord and Raamsdonkveer are also acknowledged by ILENT of the Ministry of Infrastructure and Environment for the inspection, proving and maintenance of loading and unloading hoses for inland shipping (formerly Rhine).


Hydrostatic pressure testing on site

Pressure tests for the purpose of approving or re-testing of hose assemblies are performed in our offices in Emmeloord and Raamsdonkveer, but can also be performed on site. 

Standard pressuretesting

Are performed according to the NEN issued Dutch Practice Guidelines 5527, which includes the following standards:

  - Composite hoses - EN 13765, EN 13766
  - Rubber en PVC hoses - EN-ISO 1402
  - Metal welled hoses - EN-ISO 10380
  - Electrical conductivity - EN-ISO 8031


Assembly, testing and proving

On request we can supply you your complete hose assembly, optionally provided with a pressure test certificate. 


Assembly of hose assemblies

Hoses can be supplied assembled with coupling, by using hose clamps or Clamp saddles, wire binding or crimping.

In all cases, you are assured of a professional assembly.


Tecofi knife gate valveTecofi bidirectional knife gate valves


For several years now, Bijl & de Jong is the distributor for Tecofi in the Netherlands. Tecofi is a French manufacturer of butterfly valves, knife gate valves, gate valves, filters and ball check valves. Since this year they also supply the bidirectional knife gate valve.


The cast iron bidirectional valve has a stainless steel knife that seals on both sides of the knife and can be supplied from DN50 to DN400. The valves are mounted between PN10 flanges and can withstand a maximum working pressure of 10 to 4 bars, depending on the diameter. Temperature ranges ut to +180° Celsius. The valves can be equipped with a handwheel with non-rising stem, as well as with an electric or pneumatic actuator.


Knife gate valves are widely used in water treatment, sewage and waste water plants, pulp production, chemical industry, pneumatic transport of granules, powders, crystallizing and sludge products.


Datasheet bi-directional valves



In December 2013, we have asked our customers to sign up a charity for our charity action. Money that normally would be spent on Christmas gifts, get's a better destination in this way.

As we didn't want to make a choice ourselves, we have asked our customers to contribute a charity. From these responses we have drawn 10 goals, all of which an amount of € 500, - get paid. 

The charities that have been drawn are the following:

In our opinion all 10 beautiful charities.

Many thanks to everybody for contributing the charities.



For a number of years now, Bijl & de Jong is the importer for Tecofi valves in the Netherlands.

Tecofi produces a large range of butterfly valves, knife gate valves and ball check valves, but also sells a large range of additional valves.

If it concerns applications with water, biogas, food, oil, gas or chemicals, a Tecofi valve is available.


The butterfly valves can be delivered from stock with GG25 wafer type body, stainless steel disc, EPDM gasket and a hand lever with 10 positions. The valves are produced according the European norm 97/23/CE for liquids cat. 3, module H.

As an option the valves can be supplied with GGG50 body, lug type body, other gaskets or different levers.

The butterfly valves are also available with a double acting pneumatic actuator with connections for a Namur solenoid valve.

Datasheet butterfly valves (dutch) 

To prevent critical leakages caused by unmeant breaking of flexible hoselines Mann Tek Safety Break Away Couplings are used. Preventing spilling liquids and pollution of our environment are more and more important.

manntek break awayThe Dry break away couplings come in two varieties.

Industrial break away, breaking in edge.

Unmeant driving away with a connected hose. One side ise fixed.

Marine break away, breaking in line.

Coupling mounted between hoses with ship to ship or ship to shore (un)loading.