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Wennstrom Flow Control AB

Updated:
2017-09-20

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Valves

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PRODUCTS  
Check valves Read more>
HSE Interlock valves Read more>
Pressure/vacuum vent valves Read more>

 

Check valves

The Wennstrom check valves are mechanical devices that only allow liquid fuels to pass through in one direction. There are two basic types, straight or angled, in an adjustable or a non-adjustable version of varying dimensions. The check valves are adjustable between 0,3 – 0,7bar.

Our 1½ check valve allows a flow rate of 390l/min at 0,3bar suction and the 2” check valve allows 540l/min.

For use at airports there is a chemically nickel-plated adjustable version available as 1½” or 2”.

Versions of check valves Item no.
Check valve 90° G1½” 220-01
Check valve 90° G2” 220-02

Check valve 90° G1½” adjustable

220-3
Check valve 90° G1½” adjustable for aviation 220-3E
Check valve 90° G1½” adjustable spring kit 220-4
Check valve 90° G2” adjustable 220-5
Check valve 90° G2” adjustable for aviation 220-5E

Check valve straight G1½”

235-01
Check valve straight G1½” adjustable 235-3
Check valve straight G2” adjustable 235-5

 

 

 

 

 

 

 

 

 

 

 

HSE Interlock valves

Safe discharge
When a delivery hose is connected to the filling point at a service station there could be a potential difference between the couplings which can cause an ignition. At that moment there is a risk of an explosive environment around the open filling coupling of the ground tank. A source of ignition and a potentially explosive environment are the two basic risks handled by the ATEX-directive.

Only open when connected
The main function HSE Interlock valve is to keep the filling point (and the ground tank) closed whenever the delivery hose is connected or disconnected. This is done via mechanical interlock feature which contains the explosive environment within the ground tank.

Patented solution
The HSE Interlock valve secures the filling point against a possible explosion. The valve is user-friendly, well proven and protected by patent 05 02 129-0.

Many versions
The connection flanges are easy to change and adapt to the requirements of the local market, as is the interlock lever that differs depending on the flanges. The HSE Interlock valve is availabe in 2”, 3” and 4” versions.

H = Health
When opening the filling coupling, any overpressure, no matter how small, will force the fuel fumes from within the ground tank out into the face of the driver delivering product. This is avoided by using the Interlock valve resulting in a much improved working environment for the driver.

S = Safety
As explained earlier, the risk for an explosion from a spark caused mechanically or due to a potential differences between the hose coupling and the filling coupling, are eliminated by the Interlock valve.

E - Environment
The VOC directive (94/63/EC) from 1994 on the control of volatile organic compound (VOC) emissions resulting from the storage of petrol and its distribution from terminals to service stations clearly supports the environmental feature of an Interlock valve in preventing emissions from an open filling point.

Versions of HSE Interlock valves Item no. Intended for
HSE Interlock valve 3” G3/Kamlok 3” ES1080CJ  E85
HSE Interlock valve 4” G4/Kamlok 3” ES1090EJE E85
HSE Interlock valve 4” G4/FW135 ES1090EH Petrol
HSE Interlock valve 4” G4/FW135 ES1090EHE E85
HSE Interlock valve 4” G4/G4 ES1090EF Petrol
HSE Interlock valve 4” G4/G4 ES1090EFE E85
HSE Interlock valve 4” G4/FW125 ES1090EG Petrol
HSE Interlock valve 4” G4/FW125 ES1090EGE E85

Accessories to the Item no.
Cover Kamlok 3“ till ES1080CJ/ES1090EJ ES1080J
Cover VK-TW80 till ES1080CN MB80AL
Cover FW135 till ES1090EH 135-102

 

Pressure/vacuum vent valves

Containment
Under normal operating conditions, tanks containing petroleum products should be sealed to the atmosphere. This not only minimizes the spreading of VOC vapours, it also prevents unnecessary ventilation which may lead to damp air condensating into water in the tank.

Protect the storage tank
A pressure/vacuum (p/v) vent valve will protect the storage tank from damage due to pressure by balancing pressure tops and drops.

Proven P/V vent valve
The Wennstrom p/v vent valve is a based on a patented gravity solution that enables a wide range of pressure and vacuum values, depending on the field of use and the local requirements. The End-of-Line version is constructed to fulfill the leak rate requirements of California standards.

Cost efficient
The design of the unit and the choice of material is based on the flow rate and pressure/vacuum requirements of service station storage tanks. The ease of installation and no requirements of periodical maintenance requirements make the p/v vent valve the perfect choice.

Total risk analysis
In combination with ES118 – VR1 adaptor with flame arrester, the HSE Interlock valve at the filling point and a flame arrester if required, the storage tank will be effectively safeguarded against probable risks for explosion.

Versions of pressure/vaccum vent valves Item no.
End-of-Line pressure/vaccum vent valve
(+20/-4 mbar)
ES4061A
In-Line pressure/vaccum vent valve
(+20/-4 mbar)
ES8061AA
 

 

 

 

 

 

 

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Check valves

Adjustable check valve 90° available in 1½” (item no. 220-3) and 2” (220-5).

Straight check valve (item no. 235-01), also available in adjustable version.

Angled check valve available in 1½” (item no. 220-01) and 2” (220-02).

Check valves

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Check valves

Approvals

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

 

 

  • Illustrations
  • Download
  • Approvals

HSE Interlock valves

HSE Interlock valve with kamlok connection (Item no.ES1090EJ).

Cover 3" kamlok for ES1090EJ (Item no. ES1080J).

HSE Interlock valve with FW135 (Item no. ES1090EH).

Cover FW135 for ES1090EH (Item no. 135-102).

HSE Interlock valve

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HSE Interlock valve

Approvals

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 

 

 

  • Illustrations
  • Download
  • Approvals

Pressure/vacuum vent valves

End-of-Line P/V vent valve (Item no. ES4061A).

In-Line P/V vent valve (Item no. ES8061AA).

Pressure/vacuum vent valves

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Pressure/vacuum vent valves

Approvals