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![100](/sites/circleseal/files/styles/product_teaser/public/2024-07/100_photo.jpg?itok=BOiy7zdj)
- Low Pressure
- Ultra-sensitive
- Positive Sealing
- Zero Leakage
![1100](/sites/circleseal/files/styles/product_teaser/public/2024-08/1100_photo.jpg?itok=boM9K2T2)
- Instant Automatic Cut-out
- Automatic Gauge Cut-in
- Protection Against Surge or Shock Waves
- Snubbing Action to Reduce Shock to Gauge
- Contact Seals to Insure Precise, Unfailing Operation
![200](/sites/circleseal/files/styles/product_teaser/public/2024-07/200_photo_0.jpg?itok=FfXjtl5L)
- Low Cracking Pressure
- Large Flow Capacity
- Zero Leakage
![2200](/sites/circleseal/files/styles/product_teaser/public/2024-07/2200_photo.jpg?itok=xtnZBhn_)
- Inexpensive
- Medium Flow
- Zero Leakage
![csc_2300](/sites/circleseal/files/styles/product_teaser/public/2024-08/csc_2300.jpg?itok=39SKr6aI)
- Less Susceptible to Contamination Damage
- Zero Leakage at Normal Back Pressure
![400](/sites/circleseal/files/styles/product_teaser/public/2024-07/400_diag.jpg?itok=VI9s9qRZ)
- Quick, Positive Shuttling
- Dead-tight Sealing
- Self-cleaning Operation
![500ind](/sites/circleseal/files/styles/product_teaser/public/2024-07/500ind.jpg?itok=HFNxOCMk)
Features:
- Popoff or inline valves
- Adjustable crack pressure
- Zero leakage
- Optional factory preset
- Accurate set pressure
- Wide range of cracking pressure
- Tamper-proof adjustment
- 100% seat leakage tested
- PED certifications and CE marking available for most models
![5100](/sites/circleseal/files/styles/product_teaser/public/2024-08/5100.jpg?itok=rUod7rct)
Features:
- Zero leakage up to 95% of cracking pressure
- Positive reseat at high percentage of cracking pressure
- Accurate set pressure
- Wide range of cracking pressure
- Tamper-proof adjustment
- PED certifications and CE marking available for most models
![5300](/sites/circleseal/files/styles/product_teaser/public/2024-08/5300.jpg?itok=lyNWAVqr)
Features:
- Zero leakage up to 95% of cracking pressure
- No chatter or squeal
- Positive reseal at a high percentage of cracking pressure
- No pressure rise with increasing flow
- Externally adjustable
- PED certifications and CE marking available for most models
![900](/sites/circleseal/files/styles/product_teaser/public/2024-08/900_0.jpg?itok=160ftrYZ)
Features:
- Zero leakage
- Protected o-ring
- Full flow passages
- Freedom from wire drawing
- Panel mounting standard
- Hand wheel or toggle handle
![9200](/sites/circleseal/files/styles/product_teaser/public/2024-08/9200.jpg?itok=1HwYrxHl)
Features:
- Leak-proof in Vacuum or Pressure Service
- No Stem Leakage
- Minimum pressure drop/straight through flow passage
- Convenient ball handle
- Very low turning torque
- Positive position indicator
![9300](/sites/circleseal/files/styles/product_teaser/public/2024-08/9300.jpg?itok=n-GL829V)
Features:
- Leak-proof in vacuum or pressure service
- No stem leakage
- Minimum pressure drop
- Very low turning torque
- Effortless, fingertip operation
- Can be used for throttling service
- Positive position indicator