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 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 5.99/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	5.99/Each In Stock
Item 97717	1/4" FNPT x 1/4" FNPT Black Polypropylene Series 638 Straight Two-Way Ball Valve with EPDM Seal 6.67/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	NEW	6.67/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 5.96/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-516	5.96/Each Out of Stock (On Order)
Item 22678	1/2" FNPT x 1/2" FNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N 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-516	7.13/Each In Stock
Item 97718	1/2" FNPT x 1/2" FNPT Black Polypropylene Series 638 Straight Two-Way Ball Valve with EPDM Seal 7.92/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	NEW	7.92/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 6.46/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	6.46/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 8.14/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	8.14/Each In Stock
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 8.32/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	8.32/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 5.94/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-516	5.94/Each Out of Stock (On Order)
Item 22196	3/8" MNPT x 3/8" FNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 5.96/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	5.96/Each In Stock
Item 97719	3/8" MNPT x 3/8" FNPT Black Polypropylene Series 638 Straight Two-Way Ball Valve with EPDM Seal 6.67/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	NEW	6.67/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 6.87/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-516	6.87/Each Out of Stock (On Order)
Item 97720	1/2" MNPT x 1/2" FNPT Black Polypropylene Series 638 Straight Two-Way Ball Valve with EPDM Seal 7.65/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	NEW	7.65/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 8.56/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	NEW	8.56/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 6.46/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	6.46/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 6.46/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-516	6.46/Each Out of Stock (On Order)
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 6.84/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	NEW	6.84/Each In Stock
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 7.1/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	NEW	7.1/Each In Stock
Item 22192	1/4" OD Tube Jaco x 1/4" FNPT Gray PVC Series 638 Straight Two-Way Ball Valve with Buna-N Seal 6.4/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	6.4/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 6.46/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	6.46/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 6.44/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	6.44/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 8.57/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	8.57/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 8.56/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	NEW	8.56/Each In Stock
Item 22681	3/8" Hose Barb x 3/8" Hose Barb Black Nylon Series 638 Straight 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-516	7.49/Each In Stock
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 10.36/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	10.36/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 10.69/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	10.69/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 23.42/Each Special Order Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	23.42/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 14.78/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	NEW	14.78/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 15.47/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-516	15.47/Each Out of Stock (On Order)
Item 22205	1/4" FNPT x 1/4" FNPT Series Gray PVC 657 Right Angle Two-Way Ball Valve with Buna-N Seal 7.01/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	7.01/Each In Stock
Item 22206	1/4" FNPT x 1/4" 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-516	7.49/Each In Stock
Item 22207	1/4" FNPT x 3/8" MNPT Gray PVC Series 657 Right Angle Two-Way Ball Valve with Buna-N Seal 7.01/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	7.01/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 7.51/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-516	7.51/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 9.15/Each Special Order Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	9.15/Each Special Order
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 9.3/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	9.3/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 7.51/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	7.51/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 7.51/Each In Stock Save 5% when you buy 12+ Save 10% when you buy 24+ Save 15% when you buy 72+	P-516	7.51/Each In Stock