• Bell & Gossett 101221LF 3/4 inch NPT isolation flange set for hydronic systems
1 1

Bell & Gossett 101221LF - Isolation Flange Set, 3/4" NPT

Bell & Gossett 101221LF - Isolation Flange Set, 3/4" NPT

Brand: Bell & Gossett SKU: 101221LF
$96.97 USD
$96.97 USD
Sale Out of Stock - Call to Order
In Stock — Ships TODAY if ordered before 2:00 PM EST
OEM manufacturer warranty Genuine factory-sourced

Ships factory-new in original packaging.

📋 Request a Commercial Quote / PO

Compatible Parts

Bell & Gossett 103251 - NRF-22 Red Fox Circulator Pump, 1/25 HP
Bell & Gossett 103251 - NRF-22 Red Fox Circulator Pump, 1/25 HP
$293.52
→ Bell & Gossett 103350 - NRF-33 Circulator Pump, 1/15 HP
Bell & Gossett 103350 - NRF-33 Circulator Pump, 1/15 HP
$322.69
→ Bell & Gossett 103400 - NRF-36 3-Speed Motor, 1/6 HP
Bell & Gossett 103400 - NRF-36 3-Speed Motor, 1/6 HP
$7.25
→ Bell Gossett 103404 - NRF-45 3-Speed Circulator Pump, 1/6 HP
Bell Gossett 103404 - NRF-45 3-Speed Circulator Pump, 1/6 HP
$775.76
→ Bell & Gossett 103257LF - NBF-8S/LW Pump, 1/40 HP Motor
Bell & Gossett 103257LF - NBF-8S/LW Pump, 1/40 HP Motor
$406.84
→ Bell & Gossett 103258LF - NBF-9U/LW Pump Motor, 1/40 HP
Bell & Gossett 103258LF - NBF-9U/LW Pump Motor, 1/40 HP
$503.08
→ Bell & Gossett 103259LF - NBF-10S/LW Pump, 1/40 HP Motor
Bell & Gossett 103259LF - NBF-10S/LW Pump, 1/40 HP Motor
$421.69
→ Bell & Gossett 103260LF - NBF-12F/LW Pump, 1/40 HP Motor
Bell & Gossett 103260LF - NBF-12F/LW Pump, 1/40 HP Motor
$524.22
→ Bell & Gossett 103261LF - NBF-12U/LW Circulator Pump, 1/40 HP
Bell & Gossett 103261LF - NBF-12U/LW Circulator Pump, 1/40 HP
$506.85
→ Bell & Gossett 103255LF - NBF-22U Circulator Pump, 1/15 HP
Bell & Gossett 103255LF - NBF-22U Circulator Pump, 1/15 HP
$574.83
→ Bell & Gossett 103351LF - NBF-33 Circulator Pump, 1/15 HP
Bell & Gossett 103351LF - NBF-33 Circulator Pump, 1/15 HP
$580.09
→ Bell & Gossett 103401LF - NBF-36 3-Speed Pump, 1/6 HP
Bell & Gossett 103401LF - NBF-36 3-Speed Pump, 1/6 HP
$867.16
→ Bell & Gossett 103405LF - NBF-45 3-Speed Pump Motor, 1/6 HP
Bell & Gossett 103405LF - NBF-45 3-Speed Pump Motor, 1/6 HP
$907.96
→ PL-30 1/12 - PL-30 Pump, 1/12 HP, 115V, Single-Phase, 60Hz, 2650 RPM, Less Flanges
PL-30 1/12 - PL-30 Pump, 1/12 HP, 115V, Single-Phase, 60Hz, 2650 RPM, Less Flanges
$657.17
→ PL-36 1/6 - PL-36 Pump, 1/6 HP, 115V, Single-Phase, 60Hz, 3300 RPM, Less Flanges
PL-36 1/6 - PL-36 Pump, 1/6 HP, 115V, Single-Phase, 60Hz, 3300 RPM, Less Flanges
$666.24
→
Official TIPS Contract Awarded Vendor Badge

TIPS Contract Vendor

Officially awarded purchasing cooperative vendor.

✓

Why Buy From Us

Every quote personally reviewed. Direct sourcing from top manufacturers.

View full details

The 3/4" NPT isolation flange set provides a secure, leak‑proof point for shutting off flow during maintenance or repair of hydronic equipment. Featuring the **101221LF** part number, this Bell & Gossett solution simplifies isolation without removing pipe sections.

Designed with a dual‑flange construction, the set bolts onto existing pipework, creating a sealed barrier that isolates sections while maintaining system integrity. The NPT threads ensure a tight, pressure‑rated connection, and the compact design fits tight spaces common in boiler and chiller loops.

Key System Performance Baselines:

  • Leak Prevention: Precision‑machined faces minimize seepage under high pressure.
  • Fast Installation: Standard 3/4" NPT threads reduce labor time.
  • Thermal Compatibility: Materials selected for consistent performance across temperature ranges.
  • Durable Construction: Corrosion‑resistant alloy end caps extend service life.

⚠️ Application Profile: Ideal for boiler shut‑off points, chilled‑water plant maintenance, boiler feed‑water loops, and any hydronic system requiring quick, reliable isolation.

Performance ParameterEngineering Baseline Value
Manufacturer Part Number (MPN)101221LF
Model Designation101221LF
Connection Size3/4" NPT
Product TypeIsolation Flange Set
🏢

Corporate Procurement & PO Processing

Formal Purchase Orders (POs) and tax-exempt ordering are accepted for commercial contractors and institutional facilities.

Apply for Trade Account & Terms →

📋 Procurement & Shipping Notice

  • LTL Freight Dispatch: Heavy commercial units ship directly via insured LTL carrier with delivery coordination included.
  • Project Timelines & Submittals: Need guaranteed delivery dates, formal submittals, or tax-exempt processing?

👉 Request a Commercial Quote or contact our procurement team for direct freight scheduling.