Manual 3″ Sliding Valve (Replaceable O-ring Seat) – ANSI Flange x ANSI Flange
The Betts replaceable o-ring sliding valve is a manually operated external stop valve that provides a quick open or close function. The replaceable o-rings provide a leak tight seal and protect the disc from scratches due to metal-to-metal contact. The PTFE encapsulated o-rings and 316 stainless discs offer premium corrosion resistance and the adjustable packing nut with woven PTFE infused packing allows for easy stem adjustments.
Product Details
| Assembly Number | Flange Dims. | Dimensions | Wt. |
|---|---|---|---|
| SV853**** | OD: 7.25" [184 mm] BC: 6.00" [152 mm] Holes: 4 - .75" [4 - 19 mm] Thick.: .50" [13 mm] | A: 9.63" [244 mm] B: CLOSE 12.06 " [306 mm] OPEN 19.63" [496 mm] C: 5.12" [130 mm] D: N/A E: N/A | 19.0 lb. [8.6 kg] |
| **** Last four letters of part number designates material of construction as shown below: Example Assembly SV853SSTS(Manual 3″ Sliding Valve (Replaceable O-ring Seat) – ANSI Flange x ANSI Flange) |
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| Disc Materials |
|---|
| MSTS = Steel Body with 316 Stainless Stem & Gates |
| SSTS = 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
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 Material | Valve MAWP** | Min. Burst Pressure | Temp. Range |
|---|---|---|---|
| Steel or Stainless | 50 psi [3.4 bar] | 200 psi [13.8 bar] | -40°F to 400°F [-40°C to 204°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
Prop 65
WARNING: This product can expose you to chemicals including Chromium (hexavalent compounds) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov. For additional information on Betts products and Proposition 65 list please see: https://www.bettsind.com/prop-65/