101003 Bell & Gossett Set of 1-1/4" NPT Cast Iron Flanges (Pair)
📝 Product Overview
The Bell & Gossett 101003 is a set of two 1-1/4" NPT cast iron flanges designed for durable and reliable pump connections.
These flanges are compatible with a wide range of Bell & Gossett circulators, including Series 100, PR, NRF-22, NRF-9F/LW, NRF-33, NRF-36, PL-30, PL-36, and PL-55.
⚠️ Note: Gaskets are not included (use part number 118368 for gaskets).
✅ Key Features
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✅ Set of 2 cast iron flanges – strong and corrosion-resistant
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✅ 1-1/4" NPT threaded connections – fits many standard circulators
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✅ Compatible with multiple B&G pump series – versatile installation
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✅ High-quality cast iron construction – long-lasting durability
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✅ Easy upgrade or repair for older B&G flanges
📊 Specifications
| Feature | Details |
|---|
| Part Number |
101003 |
| Brand |
Bell & Gossett |
| Type |
Cast Iron Flanges, Set of 2 |
| Size |
1-1/4" NPT |
| Material |
Cast Iron |
| Compatibility |
Series 100, PR, NRF-22, NRF-9F/LW, NRF-33, NRF-36, PL-30, PL-36, PL-55 |
| Gaskets |
Sold separately (118368) |
⚙️ Applications
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Replacement of worn or damaged pump flanges
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Upgrade connections on Bell & Gossett Series 100, PR, NRF, and PL circulators
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Provides secure and leak-free pump installations
⚠️ Common Symptoms (When Replacement is Needed)
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Cracked or rusted flanges
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Difficulty securing the pump to piping
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Leaks at pump flange connections
❓ Frequently Asked Questions
Q1: Are gaskets included with this set?
➡️ No, gaskets are sold separately (use part number 118368).
Q2: Can these flanges replace older B&G flanges?
➡️ Yes, they fit standard 1-1/4" NPT pumps in the listed series.
Q3: What material are the flanges made from?
➡️ High-quality cast iron designed for long-term durability.
🛒 Shopping Tips
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✅ Confirm your pump model matches the listed series before ordering
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✅ Always purchase the correct gaskets (118368) for proper sealing
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✅ Inspect old flanges for cracks or corrosion before replacement
