351 SERIES BALL VALVE

Maximum Operating Pressure — 125 psi
Maximum Operating Temperature — 140°F
Ball Through Hole Diameter — .437

Design Considerations

The 351 Series Three-Way Ball Valve design promotes multiple confi gurations to fit the exact end use application. The bottom port is common and the 351 Series can be used as a diverter, selecting, or mixing valve. The handle has 90 degree rotation and lies at 45 degrees towards the open port, while the other side port is shut off completely. When the handle is rotated 45 degrees from either port, there is partial flow to both ports. There is no point in the handle rotation where flow is shut off to both ports at the same time. Gray PVC is the standard material and is an NSF Standard 61 Approved Material. Filled Polypropylene is available for chemical resistance applications. The Lever Handle is standard with an optional Mini-T Handle or Round Handle available.

Options

Material Options	Body, Ends, Ball and Handle - Gray PVC (Standard), White Polypropylene, Gray Polypropylene, Screws - Stainless
Seal Options	Buna-N, Ethylene Propylene, Fluoroelastomer (Viton®)
Bottom (Inlet) End Options	1/4, 1/2 Female NPT 1/2, 3/4 Male NPT 3/8, 1/2, 5/8, 3/4 Hose Barb 1/2, 3/4 Socket 1/2 FNPT Stainless Support Ring
Side (Outlet) End Options	1/4, 1/2, 3/4 Female NPT 1/2, 3/4 Male NPT 3/8, 1/2, 5/8, 3/4 Hose Barb 1/2, 3/4 Socket 1/2 BIB (Smooth Barb) 1/2, 3/4 FNPT Stainless Support Rings
Handle Options	Lever Handle (Standard), T Handle, Round Handle, 1.0" Offset Extended Handle

Example of how to order

Body Material
PVC

Inlet End
1/2 MNPT

Outlet End
1/4 FNPT

Outlet End
3/8 Barb

Seal
Buna-N

Handl
Lever

SMC Part Number: PVC 351-8M4F6B-B

The handle will lie at 45 degrees toward the open port when in the full open position. SMC Part Numbers are a description of the valve as read left to right, Inlet to Outlet to Outlet.
Example: PVC 351-8M4F6B-B = 1/2 MNPT Inlet x 1/4 FNPT Outlet x 3/8 Barb Outlet

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