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APSOseal® Molded seals

Customized solutions from a single source

  • Molded seals overview: red membrane and transparent silicone moulded part
  • Molded seals overview: red membrane and transparent silicone moulded part

Special sealing applications require special solutions

Custom-fabricated molded seals (such as diaphragms, frame seals and housing seals or special elastomer lip seals) are called for in situations where specific application or operating conditions push standard sealing elements to their limits. These custom-molded seals are precisely tailored to the specific application at hand and, as their name implies, are manufactured using special forming molds and dies. Optimal shaping of the sealing lip and the right choice of material are crucial prerequisites for a reliably functioning molded seal. 

Learn more about our material capabilities in the area of sealing technology!
 

Engineering – competence across the board

Angst+Pfister places its extensive experience in developing application-specific molded seals entirely at the service of its customers. Expert consulting services that range from choosing the right material to designing the seal geometry and defining possible surface treatments form the basis for our customized solutions. In addition to taking all application parameters into account, Angst+Pfister naturally also takes aspects such as cost effectiveness and easy assembly and installation into consideration. Alongside CAD (computer-aided design) services, FEM (finite element method) simulation is available during the development process to simulate especially challenging tasks. Angst+Pfister’s engineering expertise results in perfect molded seals that optimally meet customer-specific requirements and custom application specifications. 

Learn more about our engineering capabilities!
 

Fabrication – quality down to the tiniest detail

Perfect molded seals are the result of choosing the fabrication method best suited for the sealing application at hand. Injection, compression or transfer molding techniques are used depending on the geometry, unit production volume and material. Angst+Pfister has its own production workshops that are specialized in exactly these manufacturing processes. 

Learn more about or production capabilities!

 

Applications

  • Food and beverage industry
  • Process industry
  • Drinking water
  • Pharma, medical and healthcare
  • Chemical industry
  • General machine industry
  • Oil and gas
 

Molded seals – the better solution for customer-specific applications

A molded seal specially designed for a specific deployment purpose offers substantial advantages over standard seals: Optimizing the shaping and selecting the right materials in order to fulfill all custom specifications guarantees maximum leak-tightness as well as an overall longer service life. Furthermore, the use of molded seals can simplify the construction of equipment components, which can largely compensate for the tooling costs required to manufacture these molded parts.
 

Advantages of using customized molded seals

• Optimum functionality because the seal geometry is adapted to fit the equipment or part design
• Good adaptability under low compression forces
• Minimal space requirements and simple groove design
• Easy and durable groove fixation by means of special retaining ribs
• Simple installation and easy handling
• Molded seals are superior to standard seals when it comes to bridging large installation tolerances, especially when plastic parts are involved
• Potential solution for large compression travel by means of specifically designed lip seals and advantageous force/displacement ratios (versus compact seals like O-rings)
• In dynamic deployment, optimization of sliding and static friction as well as breakaway torque through the shaping of the seal
• Use of specially designed lip seals for slow rotational or swiveling motion
• High-performance materials optimally suited for the customer-specific application
• Very good value proposition for medium and large series orders
 

With Angst+Pfister from task formulation to custom solution – we are there for you during the whole process:

1. We address the application problem together with you in an early development phase.
2. We design the seal environment together with you (receiving groove/seal contact area).
3. We design and execute the seal design, during which CAD-supported seal proposals can be discussed with you and FEM simulations of functionality can be conducted.
4. We produce the prototypes from pilot molds for the deployment tests (as well as lathe-cut molded seal prototypes where required in the case of rotationally symmetric geometries).
5. We receive your approval or we optimize the prototype and its seal geometry.
6. We produce the series mold and deliver first samples with an initial sample test report.
7. After approval of the series mold, we produce and deploy the series seal.

The perfect design and configuration of the geometry is the most important thing when it comes to molded seal. Getting the experience and creativity of the Angst+Pfister engineering team involved early on is the foundation for mutual project success. Contact us with your individual needs today!

A selection of molded seals, such as sterile seals and also molded parts, such as bellows, stoppers and cable sleeves can also be found on our online shop!

Product List

Product Description Technical data Approvals Key applications Order
                                                  Material Colour

Hardness
(Shore A +/-5) 

Temperature (°C)
(short-term)
3-A Sanitary ACS/CLP ADI free AS/NZS BAM BfR Cognac by BNIC D.M. 06/04/04 n° 174 D.M. 21/03/1973 DVGW EN 681-1 DVGW DIN 682 DVGW W 270 DVGW W 534 DVGW 549 EC 1935/2004 FDA French Arreté GB 4806.11 GMC/RES N°28/99 KIWA for drinking water KTW LFGB NORSOK M710 NSF 51 NSF 61 ÖNORM PAH Category UBA USP WRAS Food & beverage Process industry Drinking water Pharma, medical & healthcare Chemical industry General machine industry Oil & gas  
KALREZ 0040 Kalrez 0040 has excellent low temperature properties and a high elasticity. This compound has been specially developed for applications where high chemical resistance at very low temperatures is required.  FFKM black 70 -42 to +220     x                                                         x     x      
KALREZ 0090 Kalrez 0090 has excellent mechanical properties with a very high hardness. This compound has been specially developed for off-shore applications to withstand changing pressures and explosive decompression. Kalrez 0090 is certified according to NORSOK M710. FFKM black

95

-10 to +250     x                                       x                           x  
KALREZ 6221 Kalrez 6221 specially developed for the food and pharmaceutical industry. Resistance to CIP/SIP media is a feature of this material. Lowest extraction values in all common media of these industries complement the broad chemical resistance. FFKM white 70 -10 to +260 x   x                         x                         x   x x   x x      
kALREZ 6230 Kalrez 6230 specially developed for the food and pharmaceutical industries. Resistance to CIP/SIP media is a feature of this material. Lowest extraction values in all common media of these industries complement the broad chemical resistance. FFKM black 75 -10 to +260 x   x                         x                         x   x x   x x      
KALREZ 6375 Kalrez 6375 offers excellent performance in contact with a wide range of chemicals and over a wide temperature range. The product is an excellent choice for applications in acids. FFKM black 75 -20 to +275     x                                                         x     x      
KALREZ 4079 Kalrez 4079 is a black, soot-filled compound and a reliable sealing material for the chemical industry. This material has been specially developed for high temperature applications.  FFKM black 75 -10 to +316     x                                                         x     x      
KALREZ 7075 Kalrez 7075 has excellent mechanical properties and a very low compression set, even at extreme temperatures. This compound was developed especially for the chemical industry, which has to reliably seal highly aggressive media at very high temperatures. FFKM black 75 -10 to +327     x                                                         x     x      
PERTEC® CIP FKM 75.501-04 PERTEC® CIP FKM was developed for use wherever the Cleaning in Place (CIP) or Sterilisation in Place (SIP) process is used. It has a broad resistance to chemicals, cleaning media and also to high temperatures and grease concentration. PERTEC® CIP FKM meets all the necessary regulations for the food, pharmaceutical and medical industries. It is a low-friction compound for dynamic applications. FKM sky blue 75 -15 to +200 x   x     x x   x           x x x x       x   x     1   x   x x   x x      
PERTEC® NP FKM 70.501-04 PERTEC® NP FKM is a novel material which has significantly improved sliding properties through the addition of nano-PTFE. Due to the peroxide cross-linking, this material also has good resistance to hot water and steam. FKM black 70 -30 to +220     x                         x                             x         x    
PERTEC® NP FKM 80.501-01 PERTEC® NP FKM is a novel material which has significantly improved sliding properties through the addition of nano-PTFE. Due to the peroxide cross-linking, this material also has good resistance to hot water and steam. FKM black 80 -30 to +220     x                         x                             x         x    
PERTEC® ST FKM 75.501-02 With PERTEC® ST FKM, Angst+Pfister has developed a high-performance elastomer that is characterized by high resistance to steam and hot water. FKM black 75 -15 to +200     x                                                         x       x    
PERTEC® UP FKM 70.501-07 With PERTEC® UP FKM - UP means "Ultrapure" - Angst+Pfister has developed a new high-performance material of the PERTEC® family which is especially suitable for applications where absolute purity of the material is indispensable. It has the most important approvals in the food sector. FKM black 70 -20 to +200 x   x   x x x   x   x     x x x x           x     1 x       x x x x x x    
PERTEC® UP VMQ 70.501-01 With PERTEC® UP VMQ - UP means "Ultrapure" - Angst+Pfister has developed a new high-performance material of the PERTEC® family which is especially suitable for applications where absolute purity of the material is indispensable.. It has the most important approvals in the food sector. VMQ translucent 70 -60 to +200 x   x           x         x x x x x x x x x   x     1   x   x x x x x x    
EPDM 60.10-04 Peroxide cross-linked slightly softer EPDM material with approvals for drinking water. EPDM black 60 -40 to +130   x x             x   x       x                 x     x   x x x x x   x    
EPDM 70.10-02 This EPDM material with many approvals for drinking water and foodstuffs has good media resistance to brake fluids, acids and alkalis, the flame-retardant hydraulic fluids HFC and HFD as well as hot water and steam - but is not resistant to mineral oils and greases, petrol and hydrocarbons. EPDM black 70 -55 to +150 x   x           x     x   x x x x x x         x             x x x x   x    
EPDM 70.502-03 This EPDM material with many approvals for drinking water and foodstuffs has good media resistance to brake fluids, acids and alkalis, the flame-retardant hydraulic fluids HFC and HFD as well as hot water and steam - but is not resistant to mineral oils and greases, petrol and hydrocarbons. EPDM black 75 -51 to +150 x   x     x x   x           x x x x       x   x         x   x x x x   x    
FKM 70-501-05 FKM material for low temperature applications with very good resistance to media, ozone and ageing. FKM black 70 -30 to +200     x                                                         x     x x    
FKM 75-16.04 FK material with a very good resistance to media, ozone and ageing. The connection is specially designed for food, gas and pharmaceutical applications. The material is also resistant to fuels, mineral oils and greases as well as aliphatic and aromatic hydrocarbons. FKM black 70 -25 to +200     x   x x     x         x x x x x                     x   x x   x x x    
FKM 75-16.18 FKM material for high temperature applications with very good resistance to media, ozone and ageing. FKM black 75 -25 to +250
(275)
    x                                                               x x    
FKM 85-501.01 FKM material for low temperature applications and high pressures with very good resistance to media, ozone and ageing. FKM black 85 -40 to +200     x                                                                 x x  
FKM 90-15.04 FKM material designed for oil and gas applications, meeting NORSOK M710 approval (explosive decompression) and NACE TMO 187 for sour gas. FKM black 90 -50 to +225
(250)
    x                                       x                         x x  
FVMQ 70.16-01 Fluorosilicone material with excellent low temperature properties and broad chemical resistance. Meets automotive standard R110(5D-5F-5G)R67(15 par11-13-14) and military MIL-DTL-25988C Class I Type II Grade 70 11-08-06. FVMQ blue 70 -60 to +200     x                                                             x x x    
HNBR 70-10.09 HNBR material with good ozone and ageing resistance as well as against hot water and various oils. This mixture has the required gas approvals. HNBR yellow 70 -30 to +150     x               x   x                                             x x  
HNBR 70-15.06 HNBR material for low temperature applications with good ozone and ageing resistance as well as hot water and various oils.  HNBR green 70 -45 to +150     x                                                                 x x  
HNBR 70-502.03 HNBR material for low temperature applications with good ozone and ageing resistance as well as against hot water and various oils.  HNBR black 70 -40 to +150     x                                                                 x x  
NBR 60-10.01 NBR material with good resistance to mineral oils and greases, water and glycols, which is suitable for gas applications. NBR black 60 -30 to +125     x                     x                                           x x  
NBR 70-10.02 High-quality NBR material with approvals in the food and beverage industry and is also suitable for gas applications. This NBR material also has a high resistance to mineral oils and greases, water and glycols. NBR black 70 -20 to +125   x x         x x     x   x x x   x             x                          
NBR 70-502.02 Low temperature NBR material with good resistance to mineral oils and greases, water and glycols. NBR black 70 -50 to +100     x                                                       x x       x x  
NBR 90-10.03 NBR material with good resistance to mineral oils and greases, water and glycols, which is suitable for high pressure applications. NBR black 90 -30 to +100     x                                                                 x x  
VMQ 60-501-01 Silicone elastomer with good mechanical properties over a wide temperature range.  VMQ black 60 -50 to +200     x                                                       x x x     x x  
VMQ 70-10.01 Silicone elastomer with good mechanical properties over a wide temperature range. This compound is resistant in hot air and ozone, in water, in animal and vegetable oils and fats.  VMQ red-brown 70 -55 to +200
(230)
    x                                                       x x x     x x  
VMQ 80-501.01 Platinum crosslinked silicone elastomer with good mechanical properties over a wide temperature range.  VMQ transparent 80 -50 to +200     x                                                       x         x    

Image Gallery

Molded seal for water meter
Molded seal for high-performance valve
Molded seal for diaphragm valve

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