1/4" Female x 1/2" Male (NPT)  Natural Polypropylene With 2" Steel Case / Brass Connection

  • Diaphragm Seal, instrument isolator, Gauge Guard...no matter what you prefer to call it, this device provides an excellent and important protective barrier between process fluid and the pressure/vacuum gauge or instrument.
  • Increase product reliability and reduce system downtime caused by failure of instruments not protected by seals.
  • Exceptionally low unit cost - now makes it feasible to protect even moderate priced instruments.
  • Compact size makes these isolators ideal for limited-space installations.
  • Liquid pressures to 200 PSI with ±4% accuracy.
  • Choice of Buna-N or FKM (Viton) seal will handle most applications.
  • Use with gauges, transducers, and pressure switches.
  • Simple to fill and install.
  • Hermetically-sealed uni-body construction - molded body avoids possibility of dangerous leaks.
  • For use with highly aggressive or ultra-pure liquids.
  • Diaphragm safety - If the gauge or instrument fractures or is removed from the guard while the system is pressurized, the diaphragm will automatically seal against leakage to the atmosphere.
  • Polypropylene bodies for excellent chemical compatibility and temperatures to 185° F (85° C).
  • The upper half (instrument side) is glass-filled polypropylene; the lower half (process side) is 100% natural, unpigmented virgin polypropylene.
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Item #

Connection Size

Gauge Material

Pressure Range

Vacuum Pressure Range

Diaphragm Material

Price

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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A N/A N/A Buna-N $37.80 Add To Cart
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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A N/A N/A FKM $45.36 Add To Cart
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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A N/A 0-30 inch Hg N/A Buna-N $81.00 Add To Cart
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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A N/A 0-30 inch Hg N/A FKM $88.57 Add To Cart
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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A 0-15 psi N/A N/A Buna-N $70.21 Add To Cart
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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A 0-30 psi N/A N/A Buna-N $70.21 Add To Cart
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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A 0-60 psi N/A N/A Buna-N $70.21 Add To Cart
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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A 0-100 psi N/A N/A Buna-N $70.21 Add To Cart
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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A 0-160 psi N/A N/A Buna-N $70.21 Add To Cart
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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A 0-200 psi N/A N/A Buna-N $70.21 Add To Cart
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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A 0-15 psi N/A N/A FKM $75.61 Add To Cart
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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A 0-30 psi N/A N/A FKM $75.61 Add To Cart
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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A 0-60 psi N/A N/A FKM $75.61 Add To Cart
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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A 0-100 psi N/A N/A FKM $75.61 Add To Cart
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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A 0-160 psi N/A N/A FKM $75.61 Add To Cart
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N/A 1/4"Female x 1/2"Male (NPT) inches N/A Natural PP N/A 0-200 psi N/A N/A FKM $75.61 Add To Cart
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