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

These valves are available in multiple configurations to fit specific end-use applications. They are an economical shut-off valve that offers superior quality and dependability for ultra-pure water systems, photographic processing equipment, laboratory use, and more. All valves support flow and pressure in either direction. The 638 Series straight valves feature a handle that aligns over the inlet port when open, providing quick visual confirmation of valve position. The 657 Series right-angle valves are designed so that the handle aligns over the side port when in the open position, offering the same easy identification.

PVC, polypropylene, or nylon
Buna-N, FKM, or EPDM seals
Two-way flow, one-piece ball & stem
Fully ported, quarter-turn handle, with positive shut-off
Jaco nuts are polypropylene
Through hole in ball: 0.437" diameter (Series 638) & 0.375" diameter (Series 657)
Not for vacuum
Maximum pressure: 125 psi
Maximum temperature: 140°F
NSF/ANSI/CAN 42 listed except 22680, 22681, 22684 & 22685

Item #	Description	Catalog Pg.	Price
Item 22134	1/4" FNPT x 1/4" FNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 6.4/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	6.4/Each In Stock
Item 97717	1/4" FNPT x 1/4" FNPT Black Polypropylene Series 638 Straight Two-Way Ball Valve with EPDM Seal 7.13/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	7.13/Each In Stock
Item 22298	3/8" FNPT x 3/8" FNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 6.37/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	6.37/Each In Stock
Item 22678	1/2" FNPT x 1/2" FNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 7.62/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	7.62/Each In Stock
Item 97718	1/2" FNPT x 1/2" FNPT Black Polypropylene Series 638 Straight Two-Way Ball Valve with EPDM Seal 8.46/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	8.46/Each In Stock
Item 22267	1/4" FNPT x 3/8" to 5/8" Tapered Barb Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 6.91/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	6.91/Each In Stock
Item 22303	1/4" FNPT x 1/4" OD Tube John Guest® Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 8.71/Each Out of Stock (On Order) Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	8.71/Each Out of Stock (On Order)
Item 22304	1/4" FNPT x 3/8" OD Tube John Guest® Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 8.9/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	8.9/Each In Stock
Item 22195	1/4" MNPT x 1/4" FNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 6.34/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	6.34/Each In Stock
Item 22196	3/8" MNPT x 3/8" FNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 6.37/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	6.37/Each In Stock
Item 97719	3/8" MNPT x 3/8" FNPT Black Polypropylene Series 638 Straight Two-Way Ball Valve with EPDM Seal 7.13/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	7.13/Each In Stock
Item 22679	1/2" MNPT x 1/2" FNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 7.34/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	7.34/Each In Stock
Item 97720	1/2" MNPT x 1/2" FNPT Black Polypropylene Series 638 Straight Two-Way Ball Valve with EPDM Seal 8.18/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	8.18/Each In Stock
Item 97723	1/4" MNPT x 1/4" Hose Barb Black Polypropylene Series 638 Straight Two-Way Ball Valve with FKM Seal 9.16/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	9.16/Each In Stock
Item 22682	3/8" to 5/8" Tapered Barb x 1/4" MNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 6.91/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	6.91/Each In Stock
Item 22683	3/8" to 5/8" Tapered Barb x 3/8" MNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 6.91/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	6.91/Each In Stock
Item 27676	3/8" to 5/8" Tapered Barb x 1/2" MNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 7.32/Each Out of Stock (On Order) Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	7.32/Each Out of Stock (On Order)
Item 97715	3/8" to 5/8" Tapered Barb x 1/2" FNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 7.6/Each Out of Stock (On Order) Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	7.6/Each Out of Stock (On Order)
Item 22192	1/4" OD Tube Jaco x 1/4" FNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 6.85/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	6.85/Each In Stock
Item 22193	3/8" OD Tube Jaco x 1/4" FNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 6.91/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	6.91/Each In Stock
Item 22194	3/8" OD Tube Jaco x 3/8" FNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 6.88/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	6.88/Each In Stock
Item 22680	1/4" Hose Barb x 1/4" Hose Barb Black Polypropylene Series 638 Straight Two-Way Ball Valve with FKM Seal 9.16/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	9.16/Each In Stock
Item 97722	3/8" Hose Barb x 3/8" Hose Barb Black Polypropylene Series 638 Straight Two-Way Ball Valve with FKM Seal 9.16/Each Out of Stock (On Order) Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	9.16/Each Out of Stock (On Order)
Item 22681	3/8" Hose Barb x 3/8" Hose Barb Black Nylon Series 638 Straight Two-Way Ball Valve with Buna-N Seal 8.01/Each Special Order Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	8.01/Each Special Order
Item 22306	1/4" OD Tube John Guest® x 1/4" OD Tube John Guest® Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 11.07/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	11.07/Each In Stock
Item 22305	3/8" OD Tube John Guest® x 3/8" OD Tube John Guest® Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 11.42/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	11.42/Each In Stock
Item 22685	1/2" OD Tube John Guest® x 1/2" OD Tube Comp. John Guest Black Polypropylene Series 638 Straight Two-Way Ball Valve with FKM Seal 25.06/Each Special Order Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	25.06/Each Special Order
Item 97716	1/4" OD Push-To-Connect x 1/4" OD Push-To-Connect Black Polypropylene Series 638 Straight Two-Way Ball Valve with FKM Seal 15.81/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	15.81/Each In Stock
Item 22684	3/8" OD Push-To-Connect x 3/8" OD Push-To-Connect Black Polypropylene Series 638 Straight Two-Way Ball Valve with FKM Seal 16.55/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	16.55/Each In Stock
Item 22205	1/4" FNPT x 1/4" FNPT Series Gray PVC 657 Right Angle Two-Way Ball Valve with Buna-N Seal 7.49/Each Out of Stock (On Order) Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	7.49/Each Out of Stock (On Order)
Item 22206	1/4" FNPT x 1/4" MNPT Gray PVC Series 657 Right Angle Two-Way Ball Valve with Buna-N Seal 8.46/Each Out of Stock (On Order) Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	8.46/Each Out of Stock (On Order)
Item 22207	1/4" FNPT x 3/8" MNPT Gray PVC Series 657 Right Angle Two-Way Ball Valve with Buna-N Seal 7.49/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	7.49/Each In Stock
Item 22268	1/4" FNPT x 3/8" to 5/8" Tapered Barb Gray PVC Series 657 Right Angle Two-Way Ball Valve with Buna-N Seal 8.03/Each Out of Stock (On Order) Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	8.03/Each Out of Stock (On Order)
Item 22301	1/4" FNPT x 1/4" OD Tube John Guest® Gray PVC Series 657 Right Angle Two-Way Ball Valve with Buna-N Seal 9.8/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	9.8/Each In Stock
Item 22302	1/4" FNPT x 3/8" OD Tube John Guest® Gray PVC Series 657 Right Angle Two-Way Ball Valve with Buna-N Seal 9.94/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	9.94/Each In Stock
Item 22208	1/4" FNPT x 1/4" OD Tube Jaco Gray PVC Series 657 Right Angle Two-Way Ball Valve with Buna-N Seal 8.03/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	8.03/Each In Stock
Item 22209	1/4" FNPT x 3/8" OD Tube Jaco Gray PVC Series 657 Right Angle Two-Way Ball Valve with Buna-N Seal 8.03/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-553	8.03/Each In Stock

Note: Product testing for individual applications is recommended before use. U.S. Plastic Corp. cannot be held liable for individual application failures.

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

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