3-Way Lubricated Plug Valve
Description
Three-Way Plug Valve Technical Data Sheet
(API 599 / API 6D / Flanged Ends)
1. Product Overview
| Item | Description |
|---|---|
| Product Type | Three-Way Plug Valve / Multi-Port Plug Valve |
| Design Standard | API 599 (Metal Plug Valves), API 6D (Pipeline Valves) |
| Structure Type | Lubricated / Non-Lubricated (Sleeved Type) |
| Port Configuration | Three-Way (L-Port / T-Port) |
| Connection Type | Flanged Ends (RF / RTJ) |
| Operation | Wrench Operated (Standard) / Gear Operated (Optional) |
| Nominal Size | NPS 1/2″ ~ 12″ (DN15 ~ DN300) |
| Pressure Class | Class 150, 300, 600, 900, 1500 |
| Working Temperature | -29°C ~ +200°C (Standard Soft Seat) / -29°C ~ +429°C (Metal Seated / Lubricated) |
| Applicable Media | Water, Steam, Oil, Gas, Natural Gas, LPG, Chemical Fluids, etc. |
| Testing Standard | API 598 (Valve Inspection & Testing) |
2. Applicable Standards & Specifications
| Item | Standard |
|---|---|
| Design & Manufacturing | API 599, API 6D, ASME B16.34 |
| Face-to-Face Dimensions | ASME B16.10 |
| Flange End Dimensions | ASME B16.5 (for Class 150~1500) |
| Pressure-Temperature Rating | ASME B16.34 |
| Testing & Inspection | API 598 |
| Fire-Safe Design | API 607 / API 6FA (Optional) |
| Anti-Static Device | API 6D (Optional) |
| Blowout-Proof Stem | Yes (per API 599 & 6D) |
3. Main Technical Parameters
| Item | Description |
|---|---|
| Pressure Class | Class 150 / 300 / 600 / 900 / 1500 |
| Shell Test Pressure | 1.5 x Class Rating @ 38°C (per ASME B16.34) |
| Seat Test Pressure (Hydro.) | 1.1 x Class Rating @ 38°C (per API 598) |
| Seat Test Pressure (Pneum.) | 80 psi (0.55 MPa) or as specified |
| Structure Type | Lubricated / Non-Lubricated (Sleeved) |
| Port Configuration | L-Port: 90° flow diversion. T-Port: Flow distribution or straight-through. |
| Operation Type | Wrench Operated (NPS ≤ 8″ for low pressure) / Gear Operated (NPS ≥ 8″ or high torque) |
| Flow Direction | Bidirectional |
| Leakage Class | API 598 (Zero leakage for soft seat; Rate A or B for metal seat) |
4. Three-Way Flow Configuration
| Plug Type | Port Configuration | Function Description | Application |
|---|---|---|---|
| L-Port | 90° Angle | Diverts flow from common inlet to one of two outlets. | Bypass, Shut-off, Diverter |
| T-Port | Straight Through | Allows flow in straight-through, mixing, or diverting configurations. | Manifold, Mixing, Distribution |
5. Material of Construction (API 599 / API 6D Compliant)
| Part Name | Carbon Steel (Standard) | Stainless Steel (Standard) | Low Temp Carbon Steel (Optional) |
|---|---|---|---|
| Body | ASTM A216 WCB | ASTM A351 CF8M | ASTM A352 LCB / LCC |
| Plug | ASTM A216 WCB + Hardface | ASTM A351 CF8M + Hardface | ASTM A352 LCB + Hardface |
| Stem | ASTM A182 F6a / 17-4PH | ASTM A182 F316 | ASTM A182 F316 |
| Seat / Sleeve | PTFE / R-PTFE / Nylon | PTFE / R-PTFE / PEEK | PTFE / R-PTFE |
| Packing | Flexible Graphite / PTFE | Flexible Graphite / PTFE | Flexible Graphite |
| Gland | ASTM A216 WCB | ASTM A351 CF8M | ASTM A352 LCB |
| Bolting | ASTM A193 B7 / A194 2H | ASTM A193 B8 / A194 8 | ASTM A320 L7 / A194 7 |
| Sealant (if lub.) | API 5A / Generic | API 5A / Generic | Low Temp Sealant |
6. Structural Features & Working Principle (API 599 / API 6D)
-
API 599 Compliance: Designed and manufactured in full compliance with API 599 for metal plug valves, ensuring reliability and interchangeability.
-
API 6D Compliance: Meets API 6D requirements for pipeline valves, including full-bore design, anti-static device (optional), and fire-safe design (optional).
-
Blowout-Proof Stem: Stem is retained within the body to prevent accidental ejection under pressure.
-
Anti-Static Device (Optional): Springs between plug and stem/body ensure electrical continuity, preventing static charge buildup (per API 6D).
-
Fire-Safe Design (Optional): In the event of a fire, secondary metal-to-metal sealing activates, meeting API 607 / API 6FA requirements.
-
Operation: Smooth 90° rotation from open to close. Gear operator recommended for larger sizes or higher pressures.
7. Dimensional Data (Flanged Ends – ASME B16.5 / B16.10)
Note: Dimensions are for reference only. Final dimensions vary by manufacturer and pressure class. Consult manufacturer’s GA drawing for final approval.
Class 150 Three-Way Flanged Plug Valve Dimensions (Illustrative)
| NPS | DN | L (RF) mm | L (RTJ) mm | D (mm) | D1 (mm) | Z-Φd | H (approx) mm |
|---|---|---|---|---|---|---|---|
| 2″ | 50 | 203 | 216 | 150 | 120.7 | 4-19 | 260 |
| 3″ | 80 | 241 | 254 | 190 | 152.4 | 4-19 | 327 |
| 4″ | 100 | 292 | 305 | 230 | 190.5 | 8-19 | 425 |
| 6″ | 150 | 356 | 368 | 280 | 241.3 | 8-22 | 512 |
| 8″ | 200 | 495 | 508 | 345 | 298.5 | 8-22 | 605 |
Class 300 Three-Way Flanged Plug Valve Dimensions (Illustrative)
| NPS | DN | L (RF) mm | L (RTJ) mm | D (mm) | D1 (mm) | Z-Φd | H (approx) mm |
|---|---|---|---|---|---|---|---|
| 2″ | 50 | 267 | 283 | 165 | 127.0 | 8-19 | 280 |
| 3″ | 80 | 298 | 318 | 210 | 168.3 | 8-22 | 350 |
| 4″ | 100 | 354 | 375 | 255 | 200.0 | 8-22 | 450 |
| 6″ | 150 | 445 | 473 | 320 | 269.9 | 12-22 | 540 |
| 8″ | 200 | 533 | 562 | 380 | 330.2 | 12-25 | 630 |
8. Testing & Inspection (Per API 598)
| Test Type | Test Medium | Test Pressure | Acceptance Criteria |
|---|---|---|---|
| Shell Test | Water | 1.5 x Rated Pressure | No visible leakage through pressure boundary |
| Seat Test (High Pressure) | Water / Gas | 1.1 x Rated Pressure | No visible leakage through seat (Zero leakage for soft seat) |
| Seat Test (Low Pressure) | Air / Nitrogen | 0.4 ~ 0.6 MPa (60~90 psi) | Bubble-tight for soft seat; Per API 598 for metal seat |
9. Installation, Operation & Maintenance Instructions (IOM)
-
Installation: Ensure pipeline is clean. Valve can be installed in any orientation. Use proper gaskets and bolt torque.
-
Operation: Rotate wrench 90° (parallel = Open, perpendicular = Closed). Do not use extensions or hammers on wrench.
-
Maintenance: Periodically check packing for leakage. For lubricated type, inject sealant as recommended. For seal replacement, follow OEM procedures.
10. Ordering Information
When ordering Three-Way Plug Valves per API 599 / API 6D, please specify:
| Item | Description |
|---|---|
| 1. Standard | API 599 / API 6D |
| 2. Valve Type | Three-Way Plug Valve (Lubricated / Non-Lubricated) |
| 3. Size | NPS ______ (DN ______) |
| 4. Pressure Class | Class ______ (150 / 300 / 600 / 900 / 1500) |
| 5. End Connection | Flanged (RF / RTJ) |
| 6. Body Material | ______ (e.g., A216 WCB, A351 CF8M) |
| 7. Plug Material | ______ (e.g., WCB+HF, CF8M) |
| 8. Seat / Seal Material | ______ (e.g., PTFE, R-PTFE, PEEK, Metal) |
| 9. Port Configuration | L-Port / T-Port |
| 10. Operation | Wrench / Gear |
| 11. Special Requirements | Anti-Static / Fire-Safe / NACE / etc. |
| 12. Quantity | ______ units |
Note: This data sheet is a general guideline. For specific project requirements, refer to the approved manufacturer’s drawing. Specifications subject to change without notice.
