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Eaton Model 53BTX Duplex Basket Strainers
Call 908.362.9981 for pricing, lead time & selection help.
Diverting Cartridge Valve Duplex Strainers
The Eaton Model 53BTX duplex strainer uses a special ball valve-style diverting cartridge to shift flow from one chamber to the other. It is available in cast iron, carbon steel, 316 stainless steel, and bronze with ¾" to 4" connections.
The compact, low-profile design fits where ordinary duplex strainers cannot, while still using full-size strainer baskets and delivering low pressure drop performance. Always compare clean differential pressure for your flow rate and retention size when evaluating brands. ABS Type Approved.
Advantages Over Traditional Plug Valve Designs
Older designs (such as the Eaton Model 50) used a tapered plug valve with metal-to-metal sealing. These are prone to leakage and often require full strainer replacement when the seat wears. The 53BTX uses replaceable ball valve-style seals for better sealing and longer body life.
The diverting cartridge design makes basket servicing easier and safer by nearly eliminating seepage into the out-of-service chamber. This reduces fugitive emissions and cleanup. The lever handle position clearly shows which chamber is in service at all times. No gear box is required.
Easy Basket Servicing
No special tools needed. Vent the chamber, drain it, lift and swing the cover clear, then remove the basket by its handle. One drain plug is provided on each side of the housing, and an easy-to-access vent valve is located in the cover. Standard foot mounting pads ensure a rock-solid installation.
Cartridge Design Benefits
No manual ball support adjustments are required. Low operating torque allows easy lever operation. Double sealing on the upper and lower stems prevents leakage between chambers and the environment. Reinforced polymer seats extend service life. If service is needed, remove four bolts and the cartridge slides out the top—no need to disassemble the entire strainer or remove it from the line.
Specifications
| Size | Body & Cartridge Material | End Connection | Seat/Seal | Pressure Rating @ 100°F |
|---|---|---|---|---|
| ¾"–2½" | Iron | Threaded | TFE/Buna-N | 200 psi (13.8 bar) |
| ¾"–2½" | Bronze | Threaded | TFE/Buna-N | 200 psi (13.8 bar) |
| ¾"–2½" | Carbon steel | Threaded | TFE/Buna-N | 200 psi (13.8 bar) |
| ¾"–4" | Stainless steel | Threaded | TFE/Viton | 200 psi (13.8 bar) |
| 1"–4" | Iron | Flanged 125# | TFE/Buna-N | 200 psi (13.8 bar) |
| 1"–4" | Bronze | Flanged 150# | TFE/Buna-N | 200 psi (13.8 bar) |
| 1"–4" | Carbon steel | Flanged 150# | TFE/Buna-N | 200 psi (13.8 bar) |
| 1"–4" | Stainless steel | Flanged 150# | TFE/Viton | 200 psi (13.8 bar) |
Diverter balls: stainless steel. Viton standard for SSTL; optional for iron, bronze, and carbon steel. Basket openings from ¾" down to 45 microns. 316SS baskets standard; Monel or Hastelloy C optional.
Standard Features
- Dynamic sealing design for long life
- Easy-to-operate lever handle—no gear box required
- Unique seat and seal design requires no adjustments
- Teflon seats for longer service life
- Foot pads for rock solid installation
- Double-stem O-rings for positive sealing
- Easy to access body vent valve
- Drain plugs in each basket cover
- Piston seal strainer basket cover
- Easy access for diverter cartridge removal
- 316 stainless steel ball design
Options
- Differential pressure gauges, with or without switches
- Magnetic separators installed in the strainer basket
- Monel or Hastelloy C baskets
Flow Guidelines
Suggested maximum flow rates are based on maintaining ≤2 PSI clean pressure drop with the standard perforated basket and minimum 4 ft/sec velocity (maximum resulting velocity ~6 ft/sec).
Resources
Use the navigation menu to select material of construction for size charts, datasheets, and drawings.
Frequently Asked Questions
How does the 53BTX diverting cartridge work?
A unique ball-type flow diverter cartridge shifts flow from one basket chamber to the other with a simple lever. It provides continuous operation so you can clean one basket while the other remains in service. The dynamic sealing system minimizes (or eliminates) leakage into the out-of-service chamber. No manual adjustments are needed, and the cartridge can be removed by taking out four bolts.
What sizes, materials, and connections are available?
Sizes range from ¾" to 4". Materials include cast iron, bronze, carbon steel, and 316 stainless steel. Connections are threaded or flanged (125# iron, 150# others). Standard pressure rating is 200 psi at 100°F. Seats/seals are TFE/Buna-N (TFE/Viton on stainless).
How is basket cleaning performed on the 53BTX?
Shift flow to the opposite chamber with the lever. Vent and drain the out-of-service chamber, then lift and swing the cover clear (no special tools). Remove the basket by its handle, clean or replace it, and reinstall. The design nearly eliminates seepage during this process.
A quick call or email confirms pricing and lead time on Eaton Model 53BTX duplex strainers.