Salpark Filterparts

PROSNAP™ Profile Snap Rings

This patented design has a profile formed into the ring, which offers many advantages to OEM's, bag house operators and bag makers. This ring is being marketed as the PROSNAP™ ring.

The main advantages include:


The PROSNAP™ profile ring eliminates the need to use a profile or beading when constructing bag tops. The PROSNAP™ profile provides an unsurpassed seal and strength of location. The PROSNAP™ profile gives a mechanical seal on both the top and bottom faces of the cell plate in addition to sealing on the inside of the cell plate hole.


The PROSNAP™ ring offers reduced manufacturing costs to bag makers. The elimination of the need for profile beading gives a saving in raw material costs; and the cost of attaching the profile to the ring or to the bag top. The profile ring can be fitted directly in to the bag top, requiring only a single sewn seam, offering still further timesavings and cost reduction. The shape of the profile in the PROSNAP™ ring allows the ring to be used for almost all cell plate thicknesses. When combined with its ability to operate at all temperatures this eliminates the need to stock a range of profiles, and profile shapes, and eliminates any production delays that awaiting delivery of a non-stock profile can cause.

The standard of seal, the resilience and the security of location provided by the PROSNAPT ring cannot be achieved using the traditional type of snap ring. PROSNAP™ offers the security of a “twist lock” type of location but with the simplicity, and the lower construction cost, of a standard basic cell plate hole. The PROSNAP™ ring design creates a seal onto the top and also the bottom of the cell plate. This is considerably more effective than the traditional snap ring which only seals into the sides of the cell plate hole. The PROSNAP™ ring offers the security of an engineering location, the ring being larger than the hole. A test was conducted in which a filter bag, fitted with a PROSNAPT ring, was loaded with weights in excess of 130kgs. The bag remained in the cell plate, the seal intact. The bags remain correctly located and sealed even when the tops of the bags are walked on.

PROSNAP™ rings, unlike textile profiles and beading, are unaffected by high temperatures and can therefore be used in all applications, withstanding the highest temperatures.

The PROSNAP™ ring offers a further unique feature; it allows filter bags to be manufactured without any sewing at the top of the bag. The non-sewn bag top design offers further advantages over the sewn bag top construction. Non-sewn bag tops eliminate the requirement to have a sewn seam below the cell plate. This now offers the ultimate bag design, filter bags that have been manufactured without any sewing.

If the non-sewn bag top construction is used, the cost of all the sewing is eliminated, as well as the cost of the thread used when sewing, (in addition to the savings on the cost of profile beading and the cost of attaching the profile beading). Consider the potential savings that this can offer to the manufacturing costs of PTFE bags. Furthermore the timesavings generated will result in increased throughput and productivity. The ability to reduce lead-times, which allows bag makers to offer an improved service to their customers, is a further advantage when compared to using the traditional snap rings.


A non-sewn PROSNAP™ bag top enables the ring to be quickly, easily, and inexpensively, removed from the bag at the end of its operational life. This allows the used bags to be readily and cheaply incinerated, or recycled; this is becoming increasingly important with tightening environmental regulations. The PROSNAP™ ring, manufactured from stainless steel, is also 100% recyclable.

Latest news

Manufacturing in the UK Ceased

All manufacturing in the UK has ceased.

PROSNAP™ rings and traditional snap rings are now being manufactured in Poland by Salpark Sp. Z o. o. This is to ensure customers in the EU will continue to receive rings without any of the potential problems following Brexit.

For orders, enquiries and further information please contact: Magdalena Golab, (Director), or Pawel Piasta (Sales Engineer) at

Posted: Wed 24-Jun-2020 10:01AM

Risk of no-deal Brexit on 31/10/2019

If neither a Brexit deal, nor an extension to UK membership of the EU, is agreed before 25/10/2019 Salpark DO NOT wish to despatch goods to EU customers between 28/10/2019 and 4/11/2019.

This is to prevent any problems and/or delays to goods in transit, goods having been despatched under EU trade terms but not having been delivered.

Posted: Tue 22-Oct-2019 3:10PM

ISO9001:2015 renewal

On 7 and 8 January 2019 SGS performed an audit of Salpark Filterparts Ltd’s QMS. The audit demonstrated compliance to the ISO9001:2015 standard.

Salpark’s ISO9001:2015 certificate was renewed and a copy of the updated certificate is available on this website – see the drop-down menu on the left-hand side of this page.

Posted: Thu 11-Apr-2019 9:57AM

Salpark sponsor Millom RUFC

Salpark are for the second year the official primary sponsors of Millom Rugby Union Football Club, for the 2010-2011 season. Millom RUFC 1st XV play in the Cumbria League, finishing runners up last season. For the 2010-2011 season MRUFC 2nd XV have joined the University of Salford League, starting in Division 5.

Click on headline above for the link to the Millom RUFC website

Posted: Thu 14-Oct-2010 10:19AM