SMC 2-Way Ball Valves 638 & 657 Series for Liquid or Air

These valves are available in multiple configurations to fit the exact end-use application. They are economical shut-off valves that offer superior quality and dependability to be used in ultra-pure water systems, photographic processing equipment, laboratory use, and more.

  • PVC, polypropylene, or nylon
  • Buna-N or FKM seals
  • Two-way flow, one-piece ball & stem
  • Fully ported, quarter-turn handle, with positive shut-off
  • Jaco nuts are polypropylene
  • 0.437" diameter through hole in ball
  • Not for vacuum
  • Maximum pressure: 125 psi
  • Maximum temperature: 140°F
  • NSF 42 listed except 22680, 22681, 22684 & 22685
Item # Description Catalog Pg. Price Add to Cart
1/4" FNPT x 1/4" FNPT Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22134
5.71/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
5.71/Each
3/8" FNPT x 3/8" FNPT Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22298
5.68/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
5.68/Each
1/2" FNPT x 1/2" FNPT Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22678
6.8/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
6.8/Each
1/4" MNPT x 1/4" FNPT Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22195
5.66/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
5.66/Each
3/8" MNPT x 3/8" FNPT Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22196
5.68/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
5.68/Each
1/2" MNPT x 1/2" FNPT Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22679
6.55/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
6.55/Each
1/4" Hose Barb x 1/4" Hose Barb Series 638 Straight Polypropylene Ball Valve with FKM Seal
Item 22680
8.17/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
8.17/Each
3/8" Hose Barb x 3/8" Hose Barb Series 638 Straight Nylon Ball Valve with Buna-N Seal
Item 22681
7.14/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
7.14/Each
3/8" to 5/8" Tapered Barb x 1/4" MNPT Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22682
5.93/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
5.93/Each
3/8" to 5/8" Tapered Barb x 3/8" MNPT Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22683
5.93/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
5.93/Each
1/4" FNPT x 3/8" to 5/8" Tapered Barb Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22267
5.93/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
5.93/Each
1/4" FNPT x 1/4" OD Tube J. Guest Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22303
7.76/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
7.76/Each
1/4" FNPT x 3/8" OD Tube J. Guest Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22304
7.63/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
7.63/Each
1/4" OD Tube Jaco x 1/4" FNPT Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22192
5.87/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
5.87/Each
3/8" OD Tube Jaco x 1/4" FNPT Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22193
5.93/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
5.93/Each
3/8" OD Tube Jaco x 3/8" FNPT Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22194
6.14/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
6.14/Each
3/8" OD Push-To-Connect x 3/8" OD Push-To-Connect Series 638 Straight Polypropylene Ball Valve with FKM Seal
Item 22684
14.75/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
14.75/Each
1/4" OD Tube J.Guest x 1/4" OD Tube J. Guest Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22306
9.87/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
9.87/Each
3/8" OD Tube J.Guest x 3/8" OD Tube J. Guest Series 638 Straight PVC Ball Valve with Buna-N Seal
Item 22305
10.18/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
10.18/Each
1/2" OD Tube John Guest x 1/2" OD Tube Comp. John Guest Series 638 Straight Polypropylene Ball Valve with FKM Seal
Item 22685
22.32/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
22.32/Each
1/4" FNPT x 1/4" FNPT Series 657 Right Angle PVC Ball Valve with Buna-N Seal
Item 22205
6.68/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
6.68/Each
1/4" FNPT x 1/4" MNPT Series 657 Right Angle PVC Ball Valve with Buna-N Seal
Item 22206
6.68/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
6.68/Each
1/4" FNPT x 3/8" MNPT Series 657 Right Angle PVC Ball Valve with Buna-N Seal
Item 22207
6.68/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
6.68/Each
1/4" FNPT x 3/8" to 5/8" Tapered Barb Series 657 Right Angle PVC Ball Valve with Buna-N Seal
Item 22268
7.16/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
7.16/Each
1/4" FNPT x 1/4" OD Tube J. Guest Series 657 Right Angle PVC Ball Valve with Buna-N Seal
Item 22301
8.39/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
8.39/Each
1/4" FNPT x 3/8" OD Tube J. Guest Series 657 Right Angle PVC Ball Valve with Buna-N Seal
Item 22302
8.86/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
8.86/Each
1/4" FNPT x 1/4" OD Tube Jaco Series 657 Right Angle PVC Ball Valve with Buna-N Seal
Item 22208
7.16/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
7.16/Each
1/4" FNPT x 3/8" OD Tube Jaco Series 657 Right Angle PVC Ball Valve with Buna-N Seal
Item 22209
7.16/Each
Save 5% when you buy 12+
Save 10% when you buy 24+
Save 15% when you buy 72+
P-477
7.16/Each

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