SERIES 300 CHECK / PRESSURE RELIEF VALVES

MODULAR: MIX & MATCH END FITTINGS

BARBED, NPT, & MORE STYLES. USED FOR LIQUIDS OR AIR. CUSTOMIZABLE COMPONENTS.

Mix and match end fittings to create a one-way check / pressure relief valve

About Series 300

Versatile! Interchangeable! Flexible Design! Our most popular series allows you to mix and match end fittings (barbed, NPT, and foot valve styles) to create the ideal valve for your low pressure, low flow project. You may also use the same configuration on both ends. Internally, this design incorporates check valve cartridge model #150 or #160 to eliminate leak prone adapter by combining end fittings and check valve into one part. For pump applications, Model #315 (foot/filtering valve) is easily paired with any Series 300 end fitting. At Smart Products USA, all of our valves are customizable by plastic body material, o-ring material, and opening spring pressure to meet a specific application criteria.



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Model 300
Model #300

Barbed - 1/16"

Fits Tubing I.D.
1/16" (1.58mm)

Body Materials:
Polypropylene, Nylon, PVDF (Kynar), Ultem®, ABS

O-ring Options:
Buna-N, EPDM, Viton®, Silicone, Fluorosilicone, Aflas®, Kalrez®. (Note: Aflas® & Kalrez® are not available with springs less than 0.5 PSI)

Spring Pressure:
0.11 - 20 PSI

Model 301
Model #301

Barbed - 3/32"

Fits Tubing I.D.
3/32" (2.38mm)

Body Materials:
Polypropylene, Nylon, PVDF (Kynar), Ultem®, ABS

O-ring Options:
Buna-N, EPDM, Viton®, Silicone, Fluorosilicone, Aflas®, Kalrez®. (Note: Aflas® & Kalrez® are not available with springs less than 0.5 PSI)

Spring Pressure:
0.11 - 20 PSI

Model 302
Model #302

Barbed - 1/8"

Fits Tubing I.D.
1/8" (3.18mm)

Body Materials:
Polypropylene, Nylon, PVDF (Kynar), Ultem®, ABS

O-ring Options:
Buna-N, EPDM, Viton®, Silicone, Fluorosilicone, Aflas®, Kalrez®. (Note: Aflas® & Kalrez® are not available with springs less than 0.5 PSI)

Spring Pressure:
0.11 - 20 PSI


Model 303
Model #303

Barbed - 3/16"

Fits Tubing I.D.
3/16" (4.76mm)

Body Materials:
Polypropylene, Nylon, PVDF (Kynar), Ultem®, ABS, Radel®

O-ring Options:
Buna-N, EPDM, Viton®, Silicone, Fluorosilicone, Aflas®, Kalrez®. (Note: Aflas® & Kalrez® are not available with springs less than 0.5 PSI)

Spring Pressure:
0.11 - 20 PSI

Model 304
Model #304

Barbed - 1/4"

Fits Tubing I.D.
1/4" (6.35mm)

Body Materials:
Polypropylene, Nylon, PVDF (Kynar), Ultem®, ABS, Radel®

O-ring Options:
Buna-N, EPDM, Viton®, Silicone, Fluorosilicone, Aflas®, Kalrez®. (Note: Aflas® & Kalrez® are not available with springs less than 0.5 PSI)

Spring Pressure:
0.11 - 20 PSI

Model 305
Model #305

Barbed - 5/16"

Fits Tubing I.D.
5/16" (7.94mm)

Body Materials:
Polypropylene, Nylon, PVDF (Kynar), Ultem®, ABS

O-ring Options:
Buna-N, EPDM, Viton®, Silicone, Fluorosilicone, Aflas®, Kalrez®. (Note: Aflas® & Kalrez® are not available with springs less than 0.5 PSI)

Spring Pressure:
0.11 - 20 PSI


Model 306
Model #306

Barbed - 3/8"

Fits Tubing I.D.
3/8" (9.525mm)

Body Materials:
Polypropylene, Nylon, PVDF (Kynar), Ultem®, ABS

O-ring Options:
Buna-N, EPDM, Viton®, Silicone, Fluorosilicone, Aflas®, Kalrez®. (Note: Aflas® & Kalrez® are not available with springs less than 0.5 PSI)

Spring Pressure:
0.11 - 20 PSI

Model 308
Model #308

Barbed - 1/2"

Fits Tubing I.D.
1/2" (12.70mm)

Body Materials:
Polypropylene, Nylon, PVDF (Kynar), Ultem®, ABS

O-ring Options:
Buna-N, EPDM, Viton®, Silicone, Fluorosilicone, Aflas®, Kalrez®. (Note: Aflas® & Kalrez® are not available with springs less than 0.5 PSI)

Spring Pressure:
0.11 - 20 PSI

Model 312
Model #312

NPT Size - 1/4"

Body Materials:
Polypropylene, Nylon, PVDF (Kynar), Ultem®, ABS

O-ring Options:
Buna-N, EPDM, Viton®, Silicone, Fluorosilicone, Aflas®, Kalrez®. (Note: Aflas® & Kalrez® are not available with springs less than 0.5 PSI)

Spring Pressure:
0.11 - 20 PSI


Model 314
Model #314

NPT Size - 1/8"

Body Materials:
Polypropylene, Nylon, PVDF (Kynar), Ultem®, ABS, Radel®

O-ring Options:
Buna-N, EPDM, Viton®, Silicone, Fluorosilicone, Aflas®, Kalrez®. (Note: Aflas® & Kalrez® are not available with springs less than 0.5 PSI)

Spring Pressure:
0.11 - 20 PSI

Model 315
Model #315

Foot / Filtering Valve

Body Materials:
Polypropylene, Nylon, PVDF (Kynar), Ultem®, ABS

O-ring Options:
Buna-N, EPDM, Viton®, Silicone, Fluorosilicone, Aflas®, Kalrez®. (Note: Aflas® & Kalrez® are not available with springs less than 0.5 PSI)

Spring Pressure:
0.11 - 20 PSI

Model 330
Model #330

Manual Relief Control Valve

Body Materials:
Polypropylene

O-ring Options:
O-ring Options: Buna-N, EPDM, Viton®, Silicone, Fluorosilicone, Aflas®, Kalrez®.

Provides pressure or vacuum relief at the touch of a button. Threaded for panel mounting; 5/8-18 thread pitch


Model 361
Model #361

Smooth Stem - 3/8"

Fits Tubing I.D.
3/8"

Body Materials:
Polypropylene, Nylon, PVDF (Kynar), Ultem®, ABS, Radel®

O-ring Options:
Buna-N, EPDM, Viton®, Silicone, Fluorosilicone, Aflas®, Kalrez®. (Note: Aflas® & Kalrez® are not available with springs less than 0.5 PSI)

Spring Pressure:
0.11 - 20 PSI


Note: Dimensions on this page are based on Polypropylene material. These are typically held to a +/- 0.005" tolerance. Keep in mind different plastics have different shrink rates and may vary from these tolerances. Our products are subject to continuous improvement. To achieve this goal, Smart Products reserves the right to change features, processes, materials, testing and other specifications as necessary. All plastic body material recommendations are based on standard corrosion resistant and compatibility guides. Smart Products strongly recommends that customers test products for each application-specific use. Buyer is urged to test and investigate the compatibility of any substance used with our products prior to actual use. Seller will not be responsible for the failure of Buyer to thoroughly test and investigate the compatibility of the substances used with our products and the fitness of the products for its particular use or application.





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