B Series Dia-Vac® Pumps

When you need a compact vacuum pump for low flow gas sampling, the B Series Dia-Vac® is a proven choice. These light duty, single head diaphragm pumps deliver reliable performance without oil, oversized housings, or complicated hookups.

ADI Kits focuses on keeping those pumps running. We stock OEM B Series Dia-Vac® repair kits, including the 11461 All Teflon Diaphragm Repair Kit, along with manuals and application resources. That makes it easy to specify the right B Series pump configuration, identify the correct diaphragm repair kit, and service your units in a single visit.

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Ensuring High Quality, Reliability, and Longevity.

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What Are B Series Dia-Vac® Pumps? 

Air Dimensions, Inc. (ADI) makes B Series units. These are light-duty, single-head diaphragm pumps. They are designed for low-flow gas sampling.  

Portability, low power use, and oil-free vacuum operation are very important. Typical flow range is 1–7 L PM at up to 25 inHg vacuum—ideal for: 

  • Stack testing & ambient air surveys 
  • Portable continuous-emissions monitors (CEMs) 
  • Internal Analyzer Pump OEM cabinet integration for analyzers or FTIR cells 

Because the diaphragm never uses lubricating oil, B Series Dia-Vac® pumps virtually eliminate the risk of hydrocarbon contamination in the sample stream. When paired with an OEM diaphragm repair kit, you get a clean, dependable gas path that is simple to maintain.

Key Features & Benefits 

B Series Dia-Vac® pumps are built for technicians who carry their lab in a field case and cannot afford leaks, noise, or complicated service. Every design choice supports fast, reliable sampling and straightforward repair kit replacement.

The highlights below show why B Series units have become the go-to compact diaphragm vacuum pump for environmental consultants, CEM specialists, and OEM analyzer builders alike. 

Compact Footprint 

At just 5.4 × 4.1 × 5.6 inches (W × H × L) and under 4 lb, the B Series slides easily into portable sampling cases or crowded analyzer panels. 

Oil-Free, Clean-Gas Path 

PTFE-faced (Teflon®) diaphragms and valves keep sampled media pure and resist aggressive gases—no messy oil changes, no vapor back-streaming. 

Low Power, Multi-Voltage 

Standard brushed-DC motors draw only 0.9 A at 12 VDC (other voltages available), extending battery life in the field. Optional 115/230 VAC motors simplify setups. 

Quiet & Cool 

Direct-drive diaphragm motion runs quiet with minimal heat rise—important for on-person instrumentation and temperature-sensitive analyzers. 

Built for Serviceability 

Four socket-head screws release the pump head and valve body; complete diaphragm swap or valve cleaning takes <5 minutes with an OEM Dia-Vac pump parts kit. 

Why Repair Instead of Replace? 

Pumps wear over time, but that doesn’t mean you need a new one. With the right diaphragm, valve, and gasket replacements, most B Series Dia-Vac pumps can operate for years. 

ADI Kits carries only genuine, field-proven OEM parts that match the exact performance specs your equipment was built on. No generics. No guesswork. Just the right kit for the job. 

Recommended Repair Kit: 11461 – All-Teflon Diaphragm Repair Kit 

To keep your B Series Dia-Vac® pump operating at peak performance, we recommend the 11461 – All-Teflon Diaphragm Repair Kit. Designed specifically for field maintenance and chemical compatibility, this OEM replacement set includes everything you need for a full diaphragm and valve refresh. ADI Kits carries factory-sealed kits that include: 

  • Teflon diaphragm  
  • Valve Gasket   
  • Teflon washer 

This kit is ideal for users handling corrosive or high-purity gas streams where elastomeric components may not hold up. The all-Teflon construction offers exceptional chemical resistance and long service life, especially in aggressive environments like stack testing, ambient air sampling, or internal analyzer pumps. 

Perfect for: 

  • B Series Dia-Vac® models with Teflon/PTFE wetted parts 
  • Applications requiring maximum chemical resistance 
  • Users who want simplified, on-site pump servicing 

Why Choose a B Series Over Other Dia-Vac® Models?

Air Dimensions offers several Dia-Vac® families—J-Series, M-Series for higher flow, and R-Series for rugged industrial duty. The B Series fills a different niche:  low flow sampling where every ounce, watt, and dollar counts. 

  • Lightest Form Factor. 30% smaller than J-Series heated-head versions. 
  • Cost-Effective. Entry-level price point without sacrificing ADI’s diaphragm reliability. 

Frequently Asked Questions

No. ADI Kits specializes in repair kits only, but we offer product knowledge and resources to help you maintain existing Dia-Vac units. If you need to purchase a new B Series pump, we recommend visiting our parent company, Air Dimensions.

Each pump’s model and materials determine the correct kit. If you’re unsure, our team can help.

We only offer OEM-quality components. Using non-OEM replacements may reduce performance or cause damage over time.

Yes. We offer kits compatible with Heated and Elevated Head B Series Dia-Vac® Pumps, rated up to 200°C.

Yes—when operated within rated pressure and temperature limits, B-Series pumps handle 24/7 service with routine diaphragm maintenance.

Yes, up to 200 C and are also available with Heated and/or Elevated heads. 

Teflon 

Need Help Selecting the Right Pump Kit?

B Series Dia-Vac® pumps are built for technicians who carry their lab in a field case and cannot afford leaks, noise, or complicated service. Every design choice supports fast, reliable sampling and straightforward repair kit replacement.

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