Lined Plug Valve
Tapered Plug Quarter-Turn Isolation for Slurry and Viscous Corrosive Media
0.5" – 12"
Size Range
Flanged, RF
Connection
API 599
Design Std
PFA / FEP / PVDF
Lining
Engineered Lined Plug Valve for Corrosive Service
UNP’s Lined Plug Valve is engineered for the most demanding corrosive service applications. Tapered Plug Quarter-Turn Isolation for Slurry and Viscous Corrosive Media
The dove-tail-anchored fluoropolymer lining (PFA, FEP, PVDF, ETFE, or PPH) makes every valve suitable for pressure and vacuum service. Investment-cast body components ensure uniform lining thickness even at intricate contours.
Every valve is 100% hydro and pneumatic tested with optional helium leak testing on request, certified to ISO 9001:2015 and CE under PED 1128.
Why Choose This Valve
- ✓Lever, gear & sleeved operation options
- ✓PFA-lined plug (17-4PH stem core)
- ✓Chevron PTFE/MPTFE sealing system
- ✓Pressure & vacuum rated
- ✓CE / PED 1128 Certified
Technical Specifications
Engineered to meet international standards for corrosive valve service.
API 599
Valve Design
ANSI B 16.34
Shell Design
ANSI B 16.10 / EN 558-1/12/3
Face to Face
ANSI B 16.5, 150# / 300# / DIN PN 10 / JIS
Flange Rating
API 598 / BS EN 12266-1
Testing Standard
Flanged, RF
Connection
Engineered for Performance
Every detail purpose-engineered for corrosive service longevity.
Virgin Materials
100% virgin PFA / FEP / PVDF from Dyneon, Chemours, Solvay.
Dove-Tail Lining
Anchored lining suitable for both pressure and vacuum service.
Investment Cast
Even lining at intricate contours via investment-cast bodies.
Injection Molded
Lining applied by injection (not transfer) — compact & reliable.
100% Tested
Hydro & pneumatic tested — optional helium leak testing.
ISO & CE Certified
ISO 9001:2015 + CE certification under PED 1128.
Multi-Standard
ANSI, DIN, and JIS flange dimensions available.
Antistatic Option
Antistatic PFA grade (C 980 / 8502 ESDZ) for explosive atmospheres.
Detailed Engineering Reference
Tests, weight chart, valve code reference, and pressure-temperature graph.
Tests Performed
| Test | 0.5" – 10" | 12" |
|---|---|---|
| High Pr. Shell Test (Hydro) | 225 PSI / 15 kg/cm² | 128 PSI / 9 kg/cm² |
| High Pr. Seat Test (Hydro) | 165 PSI / 11 kg/cm² | 94 PSI / 6.6 kg/cm² |
| Low Pr. Seat Test (Pneumatic) | 85 PSI / 6 kg/cm² | 43 PSI / 3 kg/cm² |
| Spark Test | 20 KVDC | 20 KVDC |
Valve Net Weight Chart
| Size | Weight (kg) | Weight (lb) |
|---|---|---|
| 0.5" | 2.40 | 5.30 |
| 1" | 4.60 | 10.15 |
| 1.5" | 7.40 | 16.30 |
| 2" | 11.50 | 25.35 |
| 3" | 17.55 | 38.70 |
| 4" | 29.90 | 65.90 |
| 6" | 60.00 | 132.30 |
| 8" | 99.00 | 219.00 |
| 10" | 160.00 | 353.00 |
| 12" | 315.00 | 695.00 |
Valve Code Reference
Complete reference of code values used in this valve's part-numbering system.
Valve Type
| Option | Code |
|---|---|
| Lever Operated Plug Valve | LPV |
| Gear Operated Plug Valve | GPV |
| Sleeved Plug Valve | SPV |
Body Casting
| Option | Code |
|---|---|
| ASTM A 216 GR. WCB | C1 |
| ASTM A 351 GR. CF 8 | C2 |
| ASTM A 351 GR. CF8M | C3 |
| ASTM A 890 GR. 4A (CD3MN) | C5 |
Lining Material
| Option | Code |
|---|---|
| PFA | L1 |
| FEP | L2 |
| PVDF | L3 |
| ETFE | L4 |
| PPH | L6 |
| Antistatic PFA | L7 |
Operation
| Option | Code |
|---|---|
| Lever | L |
| Gear | G |
| Bare Stem | B |
Fasteners
| Option | Code |
|---|---|
| SS 304 | F2 |
| SS 316 | F3 |
| High Tensile | F4 |
| ASTM A 193 GR. B7 | F5 |
Locking
| Option | Code |
|---|---|
| Provided | Y |
| Not Provided | N |
| Not Applicable | X |
Pressure - Temperature Graph
Operating envelope across full size range and lining options.
Product Documentation
Brochures, datasheets, and installation manuals — ready for download.
Product Brochure
Full catalogue with options and variants (PDF, EN)
Technical Datasheet
Weight chart, tests, P-T graph (PDF, EN)
Installation Manual
Step-by-step installation guide (PDF, EN)
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