This Pentax endoscope valve range is a set of new replacement control-body valves made to the OF-B188, OF-B120 and OF-B190 reference specifications for Pentax 90 Series endoscopes. It covers the three wear parts that sit on the endoscope control head: the OF-B188 air/water valve, the OF-B120 suction valve and the biopsy channel cap. Buy them individually, as a 2-piece valve pair, or as a complete 3-piece set.
Key Benefits of These Pentax Endoscope Valves
- Restores control-head function replaces worn or leaking air/water and suction buttons that cause weak insufflation, poor lens rinsing or loss of suction.
- Five buying options order only the part you need, or a full set to refresh every valve position at once.
- Durable build steel valve stems with moulded plastic caps and sealing rings for repeated clinical use.
- Brand new supplied unused and ready for inspection and reprocessing before first use.
- Compact pack small, lightweight packaging that is easy to keep as a spare in the endoscopy suite.
Options Available
| Option | What Is Included | Reference Part No. |
|---|---|---|
| 3-Piece Set | 1 x air/water valve, 1 x suction valve, 1 x biopsy cap | OF-B188, OF-B120, OF-B190 |
| 2-Piece Set | 1 x air/water valve, 1 x suction valve | OF-B188, OF-B120 |
| OF-B188 Air/Water Valve | 1 x air/water feeding valve | OF-B188 |
| OF-B120 Suction Valve | 1 x suction control valve | OF-B120 |
| Biopsy Cap | 1 x biopsy channel inlet cap | OF-B190 |
Features of the OF-B188 Air/Water Valve and OF-B120 Suction Valve
OF-B188 Air/Water Valve
- Controls air insufflation and water feed for lens rinsing from the endoscope control head.
- Steel stem with multiple sealing rings and a black moulded button cap.
OF-B120 Suction Valve
- Controls suction through the instrument channel when the button is pressed.
- Steel stem with a side port and a black moulded button cap.
Biopsy Cap (OF-B190 Reference)
- Flexible black inlet cap with tethered lid that seals the biopsy/instrument channel port.
- Helps limit fluid and air escape while accessories pass through the channel.
Technical Specifications
| Product Type | Endoscope air/water valve, suction valve and biopsy cap |
|---|---|
| Reference Part Numbers | OF-B188 (air/water valve), OF-B120 (suction valve), OF-B190 (biopsy cap) |
| Works With | Pentax 90 Series endoscopes |
| Material | Steel and plastic |
| Colour | Black caps, silver steel stems |
| Powered | No (manual valve) |
| Options | 3-piece set, 2-piece set, or single parts |
| Package Size | Approx. 13 x 9 x 8 cm |
| Package Weight | Approx. 0.2 kg |
| Condition | New |
Use Cases
- Replacing worn, sticking or leaking valves on Pentax 90 Series gastroscopes and colonoscopes.
- Stocking spare valves for hospital endoscopy units, day surgeries and veterinary endoscopy.
- Biomedical engineering and endoscope repair workshops refurbishing control heads.
Fitting and Care
- Confirm the part number on your existing valve or in your endoscope manual before ordering.
- Inspect each valve and seal before use, and reprocess according to your facility protocol and the endoscope manufacturer’s instructions before first and every use.
- Replace any valve that shows cracked seals, corrosion or stiff movement.
Frequently Asked Questions
What is the Pentax OF-B188 valve?
OF-B188 is the air/water valve for Pentax 90 Series endoscopes. It sits on the control head and lets the operator feed air for insufflation and water for rinsing the lens.
What is the Pentax OF-B120 valve used for?
OF-B120 is the suction control valve. Pressing it opens suction through the instrument channel to clear fluid and debris during a procedure.
What is included in the 3-piece set?
The 3-piece set includes one OF-B188 air/water valve, one OF-B120 suction valve and one biopsy cap made to the OF-B190 reference.
Which endoscopes do these valves fit?
They are made for Pentax 90 Series endoscopes that use OF-B188, OF-B120 and OF-B190 parts. Check your scope’s manual or current valve part number before ordering.
Are these valves new?
Yes. Every option is supplied brand new. They are replacement parts made to the reference specifications, and should be reprocessed before first use.
Related Endoscopy Products
Complete your endoscopy setup with the Pentax EC-3890Fi2 Video Colonoscope, Olympus MD-495 Silicone Biopsy Caps (10 pcs), Disposable Endoscope Biopsy Forceps and the Olympus CF-Q180AL Colonoscope.
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