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OmniGas® Regulator Model 172 Series
Two-Stage Medium Flow
 Order toll-free: 866-704-6513 or Contact Us
The Model 172 two-stage regulator has a tied-diaphragm in both stages of pressure
reduction. It facilitates the safe handling of toxic and reactive gases where
two stages of pressure reduction are specified.
Features
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Two stages of pressure reduction provide a stable delivery pressure as the
supply pressure decreases. |
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Diaphragm and poppet on both stages are mechanically linked to provide a
positive shutoff should the normal regulator action fail because of sucked
back material or corrosion products. |
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Zero-clearance connections are butt-welded to the body to provide an
assembly that is easily purged and installed. |
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316 Stainless Steel wetted surfaces are electropolished, passivated and ultrasonically
cleaned to protect gas purity. |
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| General Specifications |
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Ordering Information: |
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| Maximum Inlet Pressure: 3,000 psig |
Gauge: 2" diameter, 316 SS |
Model 51-172BV-VCR |
Model 51-172CV-VCR |
| Operating Temp. Range: -40ºF to 200ºF |
Body: 316L SS |
Delivery Pressure Gauge (psig): |
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| Inlet/Outlet Ports: Welded fittings |
Diaphragm: Stainless steel/Teflon® lined |
30" Vac – 0 – 60 |
30" Vac – 0 – 100 |
| Inlet/Outlet Connections: |
Seat/Seal: Tefzel®, 316 SS/Teflon® |
Cylinder Pressure Gauge (psig): |
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| 1/4(M) VCR/1/4 (F) VCR |
Bonnet: Brass/nickel plated |
0 - 3,000 |
0 - 3,000 |
| Flow Coefficient: Cv=0.05 |
Weight: 4.5 lbs. |
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OmniGas® Regulator Model 1700 Series
Single-Stage Threadless Design
Order toll-free: 866-704-6513 or Contact Us
The Model 1700 pressure regulator is the latest development for ultra high-purity
pressure reduction on the market. With no threads in contact with fluid media,
this design minimizes particle generation. The Model 1700 is a tied-diaphragm
type designed to resist attack from strong acid forming gases and to facilitate the
safe handling of corrosive, toxic and reactive gases.
Features
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Internal threadless design delivers clean gases without generating particles. |
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Butt-welded fittings and regulator design provide a very low helium leakage
rate: Inboard: < 2 x 10-10 atm cc/sec. Outboard: < 2 x 10-8 atm cc/sec.
1,500 psi inlet pressure. |
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Zero-clearance connections are butt-welded to the body, providing a purged
and installed assembly. |
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316 Stainless Steel wetted surfaces are electropolished, passivated and ultrasonically
cleaned to protect gas purity. |
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This series is designed to withstand an internal vacuum, providing an easily
purged assembly. |
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| General Specifications |
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Ordering Information: |
| Maximum Inlet Pressure: 3,000 psig |
Gauge: 2" diameter, 316 SS or Hastelloy C-22® |
Model 51-1700V-VCR |
| Operating Temp. Range: -40ºF to 200ºF |
Body: 316L SS |
Delivery Pressure Gauge (psig): |
| Inlet/Outlet Ports: Welded fittings |
Diaphragm: Hastelloy C-22® Teflon® lined |
30" Vac – 0 – 60 |
| Inlet/Outlet Connections: |
Seat/Seal: PCTFE |
Cylinder Pressure Gauge (psig): |
| 1/4(M) VCR/1/4 (F) VCR |
Bonnet: Brass/nickel plated |
0 - 1,000 |
| Flow Coefficient: Cv=0.09 |
Weight: 3.5 lbs. |
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