Manual 3″ Sliding Valve – 3″ Threaded Pipe x TTMA Flange

The Betts sliding valve is an economical manually operated external stop valve that provides a quick open or close function.  The 316 stainless discs offer premium corrosion resistance and the adjustable packing nut with woven PTFE infused packing allows for easy stem adjustments. The metal to metal seal has advantages for many applications, but is susceptible to wear and scratches.  If a maintainable seal valve is required, please see Betts line of replaceable o-ring seat sliding valves.

Parts List

Product Details

Assembly NumberFlange Dims.DimensionsWt.
SV913***OD: 6.13" [156 mm]
BC: 4.88" [124 mm]
Holes: 8 - .44" [8 - 11 mm]
Thick.: .135" [3.5 mm]
A: 9.63" [244 mm]
B: CLOSE 12.06 " [306 mm]
OPEN 19.63" [496 mm]
C: N/A
D: 3.19" [81 mm]
E: 2.25" [57 mm]
10.9 lb. [4.9 kg]
*** Last three letters of part number designate material of construction as shown below:

Example Assembly


(Manual 3″ Sliding Valve – 3″ Threaded Pipe x ANSI Flange)
Material of Construction
MSM = Steel Body with 316 Stainless Stem & Gates
SSM = 316 Stainless Body, Stem & Gates
Flange bolt pattern per TTMA recommendations and grooved outlets per MIL-C-10387B.

** MAWP certified for new valves only. Seat/disc damage or wear may reduce sealable MAWP.

Repair Kits and Accessories

Teflon Accordion Packing

Additional Options

A heat tube option is available for 4″ and 6″ size by adding suffix “J” to part number.
(Heat tube MAWP = 150 psi)

Body MaterialValve MAWP**Min. Burst PressureTemp. Range
Steel or Stainless50 psi [3.4 bar]200 psi [13.8 bar]-40°F to 500°F [-40°C to 260°C]
NOTE: Valve should NEVER be heated with flame

Engineering Bulletins

EB-1-15: Important Notification for Gate/Sliding Valves Used in Hot Service Application