
Reliable polypropylene air center section combined with non-metallic clamped casing materials ensure maximum chemical compatibility. Available in a variety of materials and options.
| Part No. | Fluid Chambers | Diaphragms | Valve/Ball | Valve Seats | O-Rings | Connection Type |
|---|---|---|---|---|---|---|
| BK-5 | PolypropyleneA non-metallic material, suitable for water, caustics, soap solutions, mild acids and general purpose applications. | PTFEThermoplastic material that is inert to most chemicals. | PTFEThermoplastic material that is inert to most chemicals. | PolypropyleneA non-metallic material, suitable for water, caustics, soap solutions, mild acids and general purpose applications. | PTFEThermoplastic material that is inert to most chemicals. | NPT (BSP) |
| BK-5E | PolypropyleneA non-metallic material, suitable for water, caustics, soap solutions, mild acids and general purpose applications. | Santoprene®Injection molded thermoplastic material with characteristics similar to EPDM. Has excellent abrasion resistance. | Santoprene®Injection molded thermoplastic material with characteristics similar to EPDM. Has excellent abrasion resistance. | PolypropyleneA non-metallic material, suitable for water, caustics, soap solutions, mild acids and general purpose applications. | EPDMGeneral purpose elastomer with good resistance to many acids and basis. | NPT (BSP) |
| BK-5V | PolypropyleneA non-metallic material, suitable for water, caustics, soap solutions, mild acids and general purpose applications. | Viton®Elastomer with good chemical resistance to a wide variety of chemicals. | Viton®Elastomer with good chemical resistance to a wide variety of chemicals. | PolypropyleneA non-metallic material, suitable for water, caustics, soap solutions, mild acids and general purpose applications. | Viton®Elastomer with good chemical resistance to a wide variety of chemicals. | NPT (BSP) |
| KN-5 | PVDFPolyvinylidene Fluoride suitable in applications requiring the highest purity, strength, and resistance to solvents, acids, bases. | PTFEThermoplastic material that is inert to most chemicals. | PTFEThermoplastic material that is inert to most chemicals. | PTFEThermoplastic material that is inert to most chemicals. | PVDFPolyvinylidene Fluoride suitable in applications requiring the highest purity, strength, and resistance to solvents, acids, bases. | NPT (BSP) |
| KN-5E | PVDFPolyvinylidene Fluoride suitable in applications requiring the highest purity, strength, and resistance to solvents, acids, bases. | Santoprene®Injection molded thermoplastic material with characteristics similar to EPDM. Has excellent abrasion resistance. | Santoprene®Injection molded thermoplastic material with characteristics similar to EPDM. Has excellent abrasion resistance. | PVDFPolyvinylidene Fluoride suitable in applications requiring the highest purity, strength, and resistance to solvents, acids, bases. | EPDMGeneral purpose elastomer with good resistance to many acids and basis. | NPT (BSP) |
| KN-5V | PVDFPolyvinylidene Fluoride suitable in applications requiring the highest purity, strength, and resistance to solvents, acids, bases. | Viton®Elastomer with good chemical resistance to a wide variety of chemicals. | Viton®Elastomer with good chemical resistance to a wide variety of chemicals. | PVDFPolyvinylidene Fluoride suitable in applications requiring the highest purity, strength, and resistance to solvents, acids, bases. | Viton®Elastomer with good chemical resistance to a wide variety of chemicals. | NPT (BSP) |
| NC-5 | PolypropyleneA non-metallic material, suitable for water, caustics, soap solutions, mild acids and general purpose applications. | Geolast®Injection molded thermoplastic material with characteristics similar to Nitrile. Has excellent abrasion resistance. | Geolast®Injection molded thermoplastic material with characteristics similar to Nitrile. Has excellent abrasion resistance. | PolypropyleneA non-metallic material, suitable for water, caustics, soap solutions, mild acids and general purpose applications. | NitrileGeneral purpose elastomer used on water and most non synthetic oils. | NPT (BSP) |