3″ Quick Clean QRB Hydrolet – 45 Degree Elbow

The Betts Quick Clean Q.R.B. Hydrolet Valve with the seamless body and exclusive quick-removable bonnet is designed for use on transport tanks hauling a variety of products, where easy dismantling for cleaning and inspection is essential. The valve is available in the two styles with flanged or threaded outlets. The valve is constructed of 316 stainless for compatibility with a wide range of products.

Pressure and Temperature Rating:

  • Max working pressure (MAWP): 35 psi [2.4 bar]
  • Max temperature (dependent on seal):
  • PTFE, FKM or Non-Asbestos: 400°F [204°C]
  • Nitrile (Buna-N): 230°F [110°C]

Product Details

Assembly NumberDimensionsFlange-Inlet & OutletOutlet Wt.
QC763SST A: 14 29/32" [379 mm]
B: 5 17/32" [140 mm]
C: 6 1/2" [165 mm]
I.D.: 3 3/8" [86 mm]
O.D.: 5 5/8" [143 mm]
B.C.: 4 7/8" [124 mm]
Holes: 8-7/16" [11 mm]
Flanged16.0 lbs (7.3 kg)
QC773SST A: 14 29/32" [379 mm]
F: 7 13/16" [198 mm]
G: 7 1/2" [191 mm]
I.D.: 3 3/8" [86 mm]
O.D.: 5 5/8" [143 mm]
B.C.: 4 7/8" [124 mm]
Holes: 8-7/16" [11 mm]
3" Threaded16.0 lbs (7.3 kg)

Parts List
No.DescriptionReqMaterialPart No.
17/16-14UNC-2A Hex Nut1Stnls.9Q8580
2Handwheel1Alum.25186AL
3Stuffing Box Nut1Stnls.15026SL
4Top Gland1Stnls.15220SS
5Teflon Packing1Teflon19649TF
6Bottom Gland1Stnls.15076SS
7Tophead & Bonnet1Stnls.16126SS
8Tophead Gasket1Teflon/FKM15977TF
9Clamp Ring Assembly1Stnls.25683SL
10Disc Holder & Stem Assem.1Stnls.17683SS
11Disc1Teflon15202TF
12Disc Retainer Plate1Stnls.17028SS
13Disc Plate Nut1Stnls.15204SS
141/8x1 Cotter Pin1Stnls.9Q5867

Repair Kits and Accessories


Teflon Accordion Packing

Engineering Bulletins

EB-03-18: Procedure for Pneumatic Leak Test of Hydrolet Valve (Pre-Load Qualification)
EB-09-99: Q.R.B. Hydrolet Clamp Ring Installation and Torque Rating.