4×4 Quick Clean Chemical Hydraulic Valve

Betts Quick Clean Chemical Hydraulic Valve is classified as an internal self-closing stop valve and is widely used on DOT407 and 12 cargo tanks.  The key features of the Quick Clean are a rapid removal spring housing assembly, a self-contained hydraulic actuator and a valve body with a smooth tapered seat.  The 316-stainless body with an optional Hastelloy® overlay seat and replaceable Teflon™ encapsulated main seal make this a versatile and proven valve that satisfies the many requirements of the chemical transportation industry.

A sacrificial shear section is standard with the Quick Clean Valve and meets the requirements of 49CFR §178.345-8 as tested and verified per TTMA RP84

The hydraulic actuator has a ¼” NPT inlet port and is a self-contained assembly which can conveniently be replaced without removing the valve from the cargo tank.  The actuator completely isolates hydraulic fluid from cargo tank and piping.  Hydraulic leaks are contained in the actuator assembly and will drain to the exterior of the valve through weep holes as an alert for repair.  An indicator rod is located on the bottom of the actuator and can be used as a push point to manually jack open the valve.

  • Valve MAWP: 50 psi [3.4 bar]
  • Minimum bursting pressure: 200 psi [13.8 bar]
  • Working temperature range: -40°F to 400°F [-40°C to 204°C]
  • Hydraulic line pressure: Minimum 1,200 psi [83 bar],  Maximum 3,500 psi [241 bar]
  • Hydraulic volume to fully open valve: 1.01 in3[16.6 ml]
  • Fb-max per TTMA RP 86: 10,800 lbs [4,899 kg]
    • A solid flat mounting surface must be provided. Recommended mounting pad is MP19752LC.
    • Recommended hydraulic pump is HP46982ALSL and hydraulic distributor is CH16283.


Parts List

Product Details

Assembly Part #MaterialInlet Flange (4" Sump)Outlet(TTMA)Dims.Wt. lb. [kg]
CH46874SSTS316 SSB.C.: 7.25" Dia. [184 mm]
8 Holes: .563" Dia. [14.3 mm]
B.C.: 5.88" Dia. [149 mm]
8 Holes: .438" Dia. [11.1 mm]
A: 8.13" [206 mm]
B: 7.88" [200 mm]
C: Closed 14.81" [376 mm] Open 13.63" [346 mm]
29.0 [13.1]
CH46874LHTS316 SS w/ Hastelloy TrimB.C.: 7.25" Dia. [184 mm]
8 Holes: .563" Dia. [14.3 mm]
B.C.: 5.88" Dia. [149 mm]
8 Holes: .438" Dia. [11.1 mm]
A: 8.13" [206 mm]
B: 7.88" [200 mm]
C: Closed 14.81" [376 mm] Open 13.63" [346 mm]
29.0 [13.1]
*** Last three letters of part number designate material of construction as shown below:

Example Assembly


(4″ x 3" External Chemical Valve + 316 Stainless Steel disc w/ Tef-Sil O-ring


Additional Options

Betts prides itself in being able to provide products that meet a customer’s specific needs. As a result we do offer modifications to our product standards. While not every request is always feasible, we do our best to meet your specific needs. In many cases this modification is noted by adding a suffix to the end of the standard part number.  The following is a non-inclusive list of common options that are available for this product line .  If the options listed below do not meet your requirements please contact one of Betts’ Customer Service Representatives for further assistance. Please note that some product modifications may result in extended lead times.

Commonly Requested Options:

  • Suffix “017” option for valve with double O-ring replaceable seat. Item 6a.
  • Suffix “019” option for valve with double O-ring cap collar. Item 2a.
  • Add suffix “J” to Part No. for heat tube version.
  • (Heat tube MAWP = 150 psi)

Engineering Bulletins

EB-1-20: Important Maintenance and New Seal Design for Quick Clean Hydraulic Valve
EB3-03: Plumbing Schematic for Hydraulic Valve System
EB8-08: Important design modification alert for Betts’ Hydraulic Valves.


Quick Clean Hydraulic Valve Maintenance Video #MV-CH002