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Wennstrom Flow Control AB

Updated:
2012-04-24

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Valves

Follow the links in the table to go directly to the selected product.

PRODUCTS		TEXT	FACTS
	Foot valves	Read more>	Read more>
	Vapour recovery valves	Read more>	Read more>
	Ball valves	Read more>	Read more>
	Sampling valve	Read more>	Read more>

Foot valves

Bottom loading has fast become standard in Europe and many other countries. The foot valves can be balanced or unbalanced, requirements differ from market to market and are pneumatically operated. Each foot valve is pneumatically connected in sequence to the pressure/vacuum valve on that compartment. Talking points are reliability and serviceability.

Versions of the foot valves		Item no.
	R-100 pneumatic for bottom loading	LAP
	R-100 mechanical for bottom loading	LAM
	R-100 pneumatic for top loading	LYP
	R-100 mechanical for top loading	LYM
	R-100 pneumatic for top loading of bitumen and heavy oil	LYPpiki
	TT100 high L-model, pneumatic for bottom loading	T-T100PVL
	TT100 T-model, pneumatic for bottom loading	T-T100PVLT
	TT100 low L-model, pneumatic for bottom loading	T-T100PVLM
	TT100 medium high L-model, pneumatic for bottom loading	T-T100PVL2

Accessories for foot valves		Text	Facts
	Loading couplings	Read more>	Read more>
	Control blocks	Read more>	Read more>
	Sight glasses	Read more>	Read more>

Vapour recovery valves

Pressure/vacuum valve for vapour recovery

When bottom loading, it is vital to open the compartment sequentially ahead of the foot valve in order to allow air/vapours out as the product enters the compartment. In order to follow the VOC directive it is necessary to collect the vapours and return them to the gantry. At the same time, each compartment must be secured against ignition by a flame arrester.

Also during transport and discharge the compartment must be able to “breath” so the pressureless tank remains without overpressure and vacuum.

A pressure/vacuum vapour recovery valve with an integrated flame arrester will solve all of the issues above and this is what we can offer.

Conversion kit

For customers who have installed our earlier version of the Finnish pressure/vacuum vapour recovery valve (item no. 02-3314) we have developed a conversion kit to a kipp with an integrated flame arrester. The flame arrester is approved to EN12874 with approval number IBExU09ATEX2118 X.

Versions of the pr/va vapour recovery valve		Item no.
	With integrated flame arrester	02-3558
	Conversion kit with integrated flame arrester	02-2239P

Can be mounted on		Text	Facts
	Manhole covers	Read more>	Read more>

Ball valves

Stop or two-way valve, three sizes, five different flanges, manually or pneumatically operated in combination with many other features makes Gard ball valves the ideal choice for any petroleum installation. High flow rate and low contamination
The stop valve ball is manufactured with a straight bore to minimise flow resistance and product residues, an important feature that reduces contamination of sensitive products.

Highest quality
Carefully designed and well tested in combination with only the best materials and high precision manufacturing ensures a long lasting and trouble free life.

The Gard Ball Valve
The Gard Ball Valves are manufactured in three sizes 2-, 3- and 4-inch and each size is available with different flanges or combination of flanges. The valve can be manually operated or fitted with a pneumatic acturator.

The stop valve is normally delivered with a chromium plated brass ball with a straight bore to minimise flow resistance and contimination. This valve can also be ordered with a tefol coated aluminium ball for jet fuel installations. The two-way valve comes with a teflon coated aluminium ball.

Both valve casings are made from extruded aluminium. The stem assembly is made of brass and all steam seals can be serviced without removing the valve. All seals are made of teflon or high quality FPM to withstand all commercial petroleum fuel grades.

Flanges
There are five different flanges available in steel and aluminium. The same flanges are used for the stop valve as for the two-way valve with the exception of the two-way valve inlet that in some cases requires an adaptor piece. The threaded
holes on the TW-flange are lined with helicoil inserts, M10 for the 3-inch valve and M12 for the 4-inch. The 4-inch aluminium flange is only for welding.

FCPO
Fitted between the solenoid valve and the actuator this extra pneumatic outlet provides a simultaneous link to other pneumatically controlled equipment.

Service friendly
When removing the flanges for service or installation the ball and the main seals are kept in place by the retainer ring that locks to the valve casing with a bayonet catch - much appreciated time saving design. The handle and stem unit can easily be removed for service without dismantling any other
parts of the valve.

Versions of the 2” ball valve		Item no. 2"
	Stop valve c/w steel welding flanges	422
	Stop valve c/w aluminium welding flanges	423

Versions of 3” and 4” ball valves		Item no. 3"	Item no. 4"
	Stop valve w/o flanges	430	440
	Stop valve c/w steel welding flanges	432	442
	Stop valve c/w aluminium welding flanges	433	443
	Stop valve c/w TW1-flanges	434	444
	Redirectional valve w/o flanges	4530	4540
	Redirectional valve c/w steel welding flanges	4532	4542
	Redirectional valve c/w TW1-flanges	4534	4544

Accessories for ball valves		Prefix
	Pneumatic actuator, double acting	PK
	Pneumatic actuator, double acting with spring return	PKF
	Pneumatic actuator, double acting with spring return and 24-volt solenoid valve	PKRF
	Pneumatic actuator, double acting with pneumatic 5/2-valve	PKP
	Stop valve with special pneumatic output for FlowCheck	FCV
	Aluminium flange, male G3 outlet	11-3349
	Aluminium welding flange	260317
	Anodized aluminium flange, female G3	11-3282E
	Stainless steel welding flange	15657

Can be mounted with		Text	Facts
	FlowCheck	Read more>	Read more>

Sampling valve

The Wennstrom sampling valve is similar to a normal foot valve with an important exception: no loading is carried out through the valve. There are two versions; one is pneumatically controlled, the other is opened via a wire.

Dimensions: DN20

Versions of the sampling valve		Item no.
	R-20 LYP pneumatic	16-3069
	R-20 LYM mechanical	16-3070