LSP151 Series Low Pressure Sight Plug - PTF Pipe Thread
Additional Product Information
The LSP151 Series low pressure brass sight plug has a clear glass sight and male PTF pipe thread connection. Designed to be an economical alternative to high performance fused sight plugs, the LSP151 Series sight plug features a tamper resistant construction and can be accessorized with reflector and float ball. Box quantities may apply.
Standard Features:
- Stud end sizes from 1/4 inch NPT to 2-11½ inch NPT
- Clear glass sight
- Body machined from cold finished brass bar stock
- Available open view, with reflector or with reflector and float ball
Standard Materials:
- Brass construction
- Soda lime glass sight
- Buna N seals
- Stainless steel reflector (when applicable)
- Cork float ball (when applicable)
Caution:
- Do not use an impact wrench to install sight plug.
- Not recommended for steam applications.
- Scratched glass significantly reduces the pressure rating of the sight plug.
Pressure & Temperature Ratings
- Maximum operating temperature up to 180°F (82°C). For applications requiring maximum operating temperatures in excess of 180°F (82°C), consult factory for available options.
- Pressure ratings vary by sight plug size, refer to specification sheet for complete details.
Product Options
Common Modifications Available
- Float ball: Aluminum, TPX or Nylon
Custom Modifications Available
- Body material: Aluminum, Carbon Steel or Stainless Steel
- Seal Material: Fluorocarbon [Viton®], Ethylene Propylene (EPDM), Butyl, Silicone or Permanite
- Float Ball Material: Polypropylene
- Finish: Zinc plated
- Sight material: Borosilicate glass or Polycarbonate
- Sight features: Reflex or Lined lens
Minimum quantities may apply.
Related Products
LDI offers other sight plug series which install into a port with tapered pipe threads with different material and construction options.
If the application requires installing the sight plug into a port with SAE straight threads, select from the sight plugs designed for this style port.
When there is no room for a coupling and wall thicknesses are too thin for machining a port, LDI offers sight plug options suitable for these applications.
If the application also requires a reservoir, LDI can assist you by providing an off-the-shelf or customized reservoir to your specifications.
CAD Files