The DELTA AP1 valve is an aseptic diaphragm valve, which comes in two versions - the Techno and the Econo. Each is available in a hand-operated and a pneumatic actuated version.
The valves are equipped with a unique diaphragm fan support to significantly extend diaphragm lifetime.

To keep a constant pressure, the free flow section at the valve seat is reduced or enlarged by the valve cone. Via the valve shaft, the cone is connected to a regulating membrane, which will be backed up with air at a set pressure.
Field of application
All industries. For applications where a constant product pressure is a must
Advantages
Capable of working in both flow directions (upstream and downstream)
Precise valve cone control with multi-layer flat membrane design
Minimum product loss because of the leakage detection

Based on more than 25 years' experience in double-seat valve production, SPX now introduces the new APV DELTA DA3+ double-seat mixproof valve: a modern, ultra-hygienic double-seat valve, designed to meet the most extreme demands of the hygienic processing industries all over the world.
The new valve is free from operating leakages, safe from pressure hammers and has integrated seat lift cylinders. During its design, we placed great emphasis on developing a unique valve at a competitive price - and we succeeded!
The hygienic double-seat mixproof valve APV DELTA DA3+ is the result of continued development and improvement of the APV DELTA D3+, which has proved to be successful for many years. One of the advantages is that after upper or lower seat lifting during the CIP pipeline cleaning, spraying of the leakage chamber is not imperative, due to the efficient cleaning of the leakage chamber being carried out by seat lifting.
Other advantages include:
Safe separation of fluids
Free from operating leakages
Safe against pressure hammers
Integrated lifting cylinder
Housing free of dead areas - without sump and dome
Crevice-free sealing with marked profile seals
Comprehensive cleanability of all product-wetted parts inclusive shaft seal, seat seal and leakage chamber
Minimum consumption of cleaning liquids

Valve features
The APV DELTA DE3 double seat valve combines all the advantages of a modern mixproof valve: waterhammer protection, leakage free change-over operation, as well as easy service and maintenance. For applications which do not require a seat lifting device, the APV DELTA DE3 provides a cost effective alternative to the super-technology of the APV DELTA DA3+ valve. Due to its hygienic design, the APV DELTA DE3 valve is ideal for applications in industries such as brewery, beverage, dairy, as well as within the chemical and pharmaceutical industries.
Features and benefits
Safe separation of media
Two independently working valve shafts in combination with a large leakage chamber ensure 100% safe separation of incompatible fluids.
Hygienic valve design
No sump nor dome due to the smooth ball shaped valve housing design. The self draining valve housing is fitted with leakproof profile seals.
Water hammer safe
The valve is fully balanced and safeguards operation even in case of water hammer in the upper or lower housing.
Minimal leakage during on/off function
When the valve closes, the residual fluid trapped between housing and valve shaft drains off by itself, reducing leakage to an absolute minimum.
100% cleaning of leakage chamber
The neutral area between the two valve seats is efficiently cleaned by means of a built-in spray nozzle. Compact and ergonomic design, combined with limited overall dimensions facilitate installation and maintenance.
Reduced maintenance requirements
Valve inspection does not require compressed air. Only 5 product-wetted seals in the product area. Upper, middle and lower seat seals are identical. Upper and lower shaft seals are also identical to each other, a fact which considerably facilitates maintenance. The valve actuator is completely maintenance-free and covered by a five-year APV guarantee.
APV DELTA DE3 Valve Applications
The APV DELTA DE3 valve is ideal for installation into any hygienic process plant where safe separation of media from each other or from CIP fluid must be ensured. Any leakages that might occur will be safely drained off through the large leakage chamber.
Cleaning takes place during pipe cleaning of upper and lower valve areas respectively and by means of the spray nozzle in the leakage chamber.

Double seat ball valves APV DELTA DKR are proving their worth day by day in the fields of brewing, drinks technology, dairies and the food industry as well as in chemistry and pharmacology - worldwide!
They were specially developed for use in industries where the highest priority is given to protection against the mixing of products.
Main advantages
Safe separation of hostile mediums by means of two special seals
Timely detection of leakages in the event of wear on seal failure
Easy seal replacement
Water hammer safe design. Hygienic design ensures no product resides
CIP cleaning connections to flush the leakage room.
Compact, space-saving construction.
Cost-saving! Additional auxiliary valves for opening and closing the leakage chamber are not necessary.
The ball valve design allows full pipeline diameter, there is no diversion or narrowing of the product
All product contact parts are manufactured from AISI 316 series stainless steels and the seals are available in Teflon/EPDM, Teflon/ FPM or Teflon/silicone
The DELTA DKR double seat valve is supplied with our standard stainless steel, maintenance free actuator from the world proven APV Butterfly valve range.
The valve can be supplied with feedback signal indication with either proximity or micro switches, fitted in an optimal control unit or directly into the valve actuator yoke.
The double seat ball valve DELTA DKR can be welded direct in the pipe lines or supplied with pipeline connections.
It is available in DN 25-125 and 1" - 4" sizes.
APV DELTA DKRH
The double seat ball valve is now available for pressure ranges up to nominal pressure PN 100. All the well-tried advantages of the APV DELTA DKR have been appliedf or the high pressure version. The valve is pressure-resistant in open or closed position up to a pipe line pressure of 100 bars. During changes a maximum pipe line pressure of 10 bars may not be exceeded. The CIP-capability allows you to automate your installation. The following are examples of uses for the new high pressure ball valve:
Machines for mayonnaise and margarine production
Machines for the production of products with low fat content (LFS products)
The double seat ball valve APV DELTA DKRH can be supplied in the nominal widths of DN 50 and DN 80.
DELTA DKRT
The APV DELTA DKRT has proved suitable as a tank outlet valve, and particularly suitable for use at low tank outlet heights because of its special construction. The through flow opening corresponds to the pipe diameter and makes efficient tank emptying possible. Available in the following dimensions: DN 50, 80 and 100.

The DELTA KHV valve is a single-seat ball valve for non-hygienic applications, e.g. steam or glycol applications. It is a cost effective alternative to the standard APV hygienic valves.
Advantages:
Cost-effective, shut-off valve

Field of application
All industries. For aseptic applications
Advantages
EHEDG tested
Profile seals that eliminate gaps and ease ordering of spares due to ID-numbering
Flat membrane design for easy maintenance
Leakage detection on housing lid minimises product loss
Reduced spare part costs - long membrane service life

The DELTA MS4 and MSP4 aseptic single seat valves are designed for aseptic applications in the food, beverage, dairy, pharmaceutical and chemical industries. The valves are available in shut-off or change-over design as well as for manifold or tank outlet applications.
DELTA MS4 and MSP4 valves feature an innovative fan support mechanism extending the operating pressure range and the lifetime of the diaphragm as well as a flat easy cleanable single layer diaphragm design enabling immediate leakage detection.
Conversion kits for existing DELTA M4/MP4 as well as DELTA M3 valves enable leveraging the features and advantages of the corresponding APV DELTA MS4/MSP4 valve.
Features & benefits
Suitable for up to 10 bar process pressure depending on size
High temperature capability
Long diaphragm lifetime
A variety of valve body configurations enables efficient system designs
Immediate detection of leakage
Easy and cost effective maintenance compared with bellows ensures low cost of ownership
EHEDG and 3A approved (MSP4 available with USP Class VI approved diaphragm and diaphragm shaft)
Efficient CIP and SIP cycles due to open geometry and accessibility without any dead areas or air pockets
The bolted housing closure ensures tight sealing and needs no retightening, even after many SIP cycles

If product safety is your top priority, you should use sampling valves DELTA PR2 from APV.
With these valves bacteriologically safe samples can be taken direct from the pipeline.
Main advantages
Prevention of infection thanks to a Teflon shaft and a special shaft guide. No additional seat seal required
Cleaning is assured. No dead pockets in the valve body
Internal diameter of valve and pipe cross section are identical
Problem-free conversion from manual to pneumatic operating model and vice versa possible at any time
Both manual and pneumatically controlled valves are equipped with Teflon shafts and closing springs
Problem-free integration in an inline module system.
Valve shaft coming into contact with product is completely encased in Teflon
Possible changes in length of shaft stem as a result of heat expansion in cleaning and sterilization are compensated for by the spring
Universally applicable and may be directly welded in line or to vessels
The pneumatically controlled sampling valves DELTA PR2 can, if desired, be equipped with valve position feedback switch.
All stainless steel product contacts parts are AISI 316L grade material.
May be delivered in the nominal diameters DN 25 - 100 and 1" - 4".
In addition APV offers sampling valves with steam connection for sterilization.

The valve is designed for continuous flow control. It is equipped with a diaphragm actuator and positioner.
Field of application
All industries. For hygienic applications with flexible Kvs values. For aseptic applications the valve can be supplied with PTFE membrane, stainless steel bellow or steam barrier.
Advantages
3A approved
Profile seals that eliminate gaps and ease ordering of spares due to ID-numbering
Flexible design - the shaft and seat can be changed to accommodate changed Kvs values (fully developed block building system)
Easy to maintain - the valve insert can be lifted out completely
Optional noise reduction valve available

The valve is designed for continuous flow control. It is equipped with a diaphragm actuator and positioner.
Field of application
All industries. For hygienic applications with fixed Kvs values.
Advantages
3A approved
Profile seals than eliminate gaps and ease ordering of spares due to ID-numbering
Attractive price
Easy to maintain - the valve insert can be lifted out completely
Steam barrier for aseptic application can be supplied as an option

The valve opens as soon as the pressure under the valve seat exceeds the counter pressure. When the pressure is balanced, the valve closes by spring action, which means that in case of a pressure increase, the valve closes on the spring side.
Field of application
All industries. Used when backflow of the product in pipelines must be avoided.
Advantages
Profile seals that eliminate gaps and ease ordering of spares due to ID-numbering
Easy to maintain - the inter-flange design means that the valve can easily be removed from the line
Flexible design - the valve can be horizontally or vertically positioned
Reduced maintenance costs - the bearing is very robust and reliable and the valve consists of only a few parts

The APV DELTA SD4 and APV DELTA SDM4 valves are (double seal) safe flow valves designed for safe media separation applications in the food, beverage, dairy, pharmaceutical and chemical industries. The APV DELTA SDM4 is the aseptic version of the APV DELTA SD4.
The APV DELTA SD4 valve is available as a shut-off valve in 4 standard housing configurations. Other configurations are available on request.´
Features & benefits
The APV DELTA SD4 and APV DELTA SDM4 valves have excellent hygienic characteristics primarily due to the ball-shaped housing without sump or dome.
The profile seat seals provide a crevice-free sealing and the compression of the seat seals is controlled by a metallic stop.
The APV DELTA SD4 and APV DELTA SDM4 valves have leakage valves to drain the neutral area between seals. The leakage valves can also be used as flush - this enables CIP and SIP cleaning of the neutral area. The leakage valves are activated at the same time as the valves main cylinder and, therefore, do not require a special control system.
The shaft seal is very wear resistant and is made from a combination of teflon and EPDM.
The actuator and control unit are standard parts from the SW4 product line. Additionally, a NOT element is fitted to the control unit as standard to enable the maintaining of higher line pressures.
The APV DELTA SDM4 is identical with the APV DELTA SD4, but is used for aseptic applications - a rubber supported flat TFM membrane is used as sterile barrier.

The spring-loaded, full stroke safety valves DELTA SI 2 are approved for fluids and gases. They are used where containers or tanks have to be secured against excess pressure. As a result of their hygienic design they are especially suitable for use in brewing and drinks technology, the dairy industry, the food industry, the chemical and pharmaceutical industries.
Main advantages
Hygienic design
Ideally suited to CIP applications
All product-contact parts finished to Ra <= 0.8µ
Pneumatic or manual operation
The pneumatic seat lifting device includes the facility for feedback signals from proximity switch
Quick and easy seal replacement
The nameplate details uniquely identify each valve
The new safety valves DELTA SI 2, are approved by the TÃV, for fluids and gases, they meet the requirements of the Pressure Vessels codes, AD-leaflet A2 and the VdTÃV leaflet Safety Valve 100. This means that the valve design prevents the permitted operational pressure being exceeded by more than 10%. If the minimum set pressure after opening falls short by a maximum of 10% in the case of gases and a maximum of 20% in the case of fluids, the valve closes.
Safety valves DELTA SI 2 can be supplied in nominal diameters of DN 25 to 100. The valves are manufactured in stainless chrome nickel steel, all product-contact parts are made of material 1.4571. The housing is in accordance with AD leaflet A4 and TRB 801 No. 45.
Safety valves are supplied with flanges with a 3.1.B certificate. The standard material of the seals is EPDM. Alternatively silicon and FPM are available. An FDA and a BGA licence is available for EPDM and silicon.
The safety valves DELTA SI 2 may be fitted with manual or pneumatic controls.
Valves can be supplied with manual or pneumatic seat lifting device. A proximity switch and valve position indicator may be incorporated.
The valve may be cleaned up to the valve stem via a CIP nozzle, supplied as an optional accessory, this is fitted in a pipe adapter below the valve.

The APV DELTA butterfly valves from SPX are stop valves, which can be actuated either manually or pneumatically. The valves are very robust and reliable and the space saving design makes them ideal for nearly all applications - a flexible valve which is very easy to install and to service.

An investment in the future!
Installing the new SW4 valves is an investment in efficiency, production flexibility or in other words: in the future. So when designing this new valve, great emphasis has been put on facilitating valve handling, installation and maintenance. Its hygienic design makes it ideal for applications in the dairy, beverage and brewing industries, as well as the chemical and pharmaceutical industries.
Sturdy ball shaped housing designed for optimum clean ability
The extra wall thickness of the valve housing minimizes stresses in the seat area. At the same time the ball shape of the housing effectively prevents sump or dome, thus optimizing valve clean ability and reducing CIP-time.
Features and Benefits
Controlled compression of seat seal
The metallic stop ensures defined compression of seat area and minimizes stress and load on seat seals, which in the long run minimizes downtime. Furthermore, this arrangement ensures smooth product transition in this area. Wear resistant EPDM/ PTFE shaft seal and shaft bearing arrangement increases seal lifetime and consequently minimizes maintenance costs and general downtime.
Installation and maintenance convenience
A handy clamp closure system between housing and yoke provides quick and easy access to product-wetted parts, and housings may be orientated in various directions to ensure multiple installation possibilities. Moulded elastomer profiles seals with clear identification markings ensure prompt and failsafe identification of seals during maintenance.
Only one hexagonal nut outside the product area ensures quick and easy service of the valve.
Different actuator sizes are available, and these are interchangeable. This means that different product pressures can be handled, i.e. for low pressure appplications a small actuator can be fitted on a big diameter housing.
Actuator design prepared for NC/NO.
Maintenance-free actuator, covered by the 5-year APV guarantee.

The valve which is just right for applications which require safe liquid separation, but not necessarily seal cleaning. Built on the principles of the DELTA SW4 and DELTA SD4 valves.
Field of application
All industries - especially CIP-applications
Advantages
Profile seals that eliminate gaps and ease ordering of spares due to ID-numering
Easy to maintain due to the low weight, few seals and maintenance-free actuator
Reduced maintenance costs due to the metallic stop and longerlasting seals
Attractive price
Flexible design due to interchangable actuators to handle different procuct pressures

Characteristics
Its hygienic design makes it ideal for applications in the dairy, beverage and brewing industries, as well as the chemical and pharmaceutical industries. The valve is 3A certifi ed and EHEDG approved. As our standard valve,
the valve is available in on/off and change-over versions.
Features & benefits
Sturdy ball shaped housing designed for optimum cleanability.
The extra wall thickness of the valve housing minimizes stresses in the seat area. At the same time the ball shaped housing effectively prevents sump or dome, thus optimizing valve cleanability and reducing CIP-time.
A comprehensive range of valve housings are available to cover any requests.
Controlled compression of seat seal
The metallic stop ensures defi ned compression of seat area and minimizes stress and load on seat seals, which in the long run minimizes downtime. Furthermore, this arrangement ensures smooth product transition in this
area. Wear resistant elastomer/PTFE shaft seal and shaft bearing arrangement increases seal lifetime and consequently minimizes maintenance costs and general downtime.

APV has specially developed the DELTA UF pressure relief valves to protect installations against excess pressure.
If the set pressure is exceeded, the valve opens; if the pressure sinks below the set value (up to a maximum of 20%), the valve closes.
Main advantages
Optimal cleaning possibilities. Free draining ensures trapped product or CIP residues.
No stroke limitation by seat lift actuator and so the full diameter of the opening is available during cleaning.
Particularly easy to service - only four screws to be loosened and the valve insert can be lifted out upwards.
All valves can, in addition, be provided with a seal lifter, e.g. to relieve pressure during cleaning operations.
There is provision for mounting feedback signal proximity switches in the actuator yoke. All product-contact parts are manufactured from AISI 316 series stainless steel.
The valves can be supplied in nominal diameters of DN 25 - 100 and 1" - 4".

Standard version
The VPN valve is a 3A certified non-return valve which is used when backflow of the product in pipelines must be avoided. The valve which only consists of a few parts, is a cost-effective alternative to the DELTA RUF valve.