BSPT Male × BSPP Female Flat Seat Union with PTFE Seal
BSPT Male × BSPP Female Flat Seat Union with PTFE Seal designed with BSPT Taper Male × BSPP Parallel Female connections for industrial stainless steel threaded piping. Constructed as a three-Piece Male/Female Flat Seat Union with PTFE Gasket and Central Nut in 316 (CF8M) Stainless Steel (with PTFE Flat Seal). Available across nominal sizes 1/8"–2".
Material | 316 (CF8M) Stainless Steel (with PTFE Flat Seal) |
|---|---|
Connection Ends | BSPT Taper Male × BSPP Parallel Female |
Body Construction | Three-Piece Male/Female Flat Seat Union with PTFE Gasket and Central Nut |
Nominal Size Range | 1/8"–2" |
Reference Standard | Generally in accordance with ISO 4144 (150 LB series) |
Size
Product overview
Connection Geometry & 316 Stainless Steel Construction
This BSPT male × BSPP female flat seat union with PTFE seal features three-piece male/female flat seat union with PTFE gasket and central nut in a straight inline male-to-female union profile, providing BSPT Taper Male × BSPP Parallel Female connections for modular stainless steel piping, equipment hookups, and manifold assemblies. Manufactured in 316 (CF8M) Stainless Steel (with PTFE Flat Seal), the fitting offers molybdenum-bearing austenitic corrosion resistance suited for process water, chemical transfer, utility air, and washdown environments.
Size Coverage & Thread Assembly
Dimensioned generally in accordance with ISO 4144 (150 LB series) as stated on the series datasheet (a reference dimensional design rather than full standard certification). The series covers nominal sizes across 1/8"–2". Refer to the dimensional schedule on this product page to match each thread size against its corresponding envelope length, outside diameter or across-flats width, and unit weight. Before installing this BSPT male × BSPP female flat seat union with PTFE seal, verify that your mating ports match the BSPT Taper Male × BSPP Parallel Female interface and select an appropriate thread sealant or gasket for the joint. Specify the required nominal size from 1/8"–2" and confirm installation clearance when ordering.
Technical specifications
Specifications
- Manufacturing & Standards Reference
- Investment cast, generally manufactured to ISO 4144 or above.
Dimensions · CH-F032
Applies only to the listed references; other material or end forms are outside this scope.
Units: SIZE: nominal pipe size; KG EACH: kg per piece. Length units appear beside applicable values.
| Nominal size | Chelsey reference | I | K | Unit weight (kg) |
|---|---|---|---|---|
| 1/8 | CH-F032-001 | 29.1 | 43.5 | 0.09 |
| 1/4 | CH-F032-002 | 29.1 | 45 | 0.11 |
| 3/8 | CH-F032-003 | 34 | 50.5 | 0.15 |
| 1/2 | CH-F032-004 | 37.5 | 53.5 | 0.16 |
| 3/4 | CH-F032-005 | 44.5 | 61.5 | 0.23 |
| 1 | CH-F032-006 | 53.5 | 70.4 | 0.40 |
| 1-1/4 | CH-F032-007 | 64 | 75.8 | 0.54 |
| 1-1/2 | CH-F032-008 | 71.5 | 82.4 | 0.72 |
| 2 | CH-F032-009 | 85.5 | 91.2 | 1.06 |
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