PSB Close Die Forged F22 Globe Valve
Description
TECHNICAL DATA SHEET
Product Name: PSB Close Die Forged F22 Globe Valve
Description: Pressure Seal Bonnet, Close Die Forged Body, F22 Alloy Steel Globe Valve
Service: High-temperature & high-pressure steam, feed water, oil & gas, and other severe services
1. Design Standards & Codes
| Item | Standard |
|---|---|
| Design & Manufacture | API 602 / BS 5352 / ASME B16.34 |
| Pressure-Temperature Rating | ASME B16.34 |
| Body / Bonnet Material | ASTM A182 F22 (2.25Cr-1Mo) |
| Inspection & Testing | API 598 |
| Body Forging | Close Die Forging |
| Bonnet Type | Pressure Seal Bonnet (PSB), Bolted Bonnet (optional) |
2. Technical Specifications
| Parameter | Description |
|---|---|
| Nominal Size (NPS) | 1/2″ – 2″ (DN15 – DN50) |
| Pressure Class | Class 1500 / 2500 |
| End Connections | Socket Weld (SW), Butt Weld (BW), Flanged (RF/RTJ) |
| Operation | Handwheel (standard); Gearbox, Pneumatic, or Electric actuator optional |
| Body Pattern | Straight pattern (T-pattern) / Y-pattern (optional) |
| Disc Type | Conical / Parabolic, Stellite hard-faced seating surface |
| Seat Type | Renewable seat ring (Stellite 6 hard-faced) or integral seat |
3. Pressure-Temperature Ratings (ASME B16.34, Material Group 2.2)
Example for Class 1500 (Class 2500 ratings = table values × 1.667)
| Temp. (°F) | Temp. (°C) | Max. Working Pressure (psig) | Max. Working Pressure (bar) |
|---|---|---|---|
| -20 to 100 | -29 to 38 | 3705 | 255 |
| 200 | 93 | 3705 | 255 |
| 400 | 204 | 3625 | 250 |
| 600 | 316 | 3450 | 238 |
| 800 | 427 | 3020 | 208 |
| 1000 | 538 | 1435 | 99 |
| 1100 | 593 | 535 | 37 |
Note: For Class 2500, max. working pressure at ambient (100°F) is 6170 psig (425 bar). An extended bonnet is recommended for media temperatures continuously exceeding 950°F.
4. Bill of Materials
| No. | Part Name | Material | Material Standard |
|---|---|---|---|
| 1 | Body | F22 Alloy Steel (Close Die Forged) | ASTM A182 F22 |
| 2 | Bonnet | F22 Alloy Steel | ASTM A182 F22 |
| 3 | Disc | F22 + Stellite Hard-facing | ASTM A182 F22 / Stellite 6 |
| 4 | Seat Ring | F22 + Stellite Hard-facing | ASTM A182 F22 / Stellite 6 |
| 5 | Stem | 13Cr Stainless Steel (or F22+Nitrided) | ASTM A276 410 / A182 F6a |
| 6 | Pressure Seal Ring | 304 + Flexible Graphite / Pure Graphite Braided | (Standard sealing kit) |
| 7 | Packing | Flexible Graphite (with SS wire reinforcement) | (Low-emission packing optional) |
| 8 | Gland | 13Cr Stainless Steel | ASTM A276 410 |
| 9 | Gland Eyebolt | Alloy Steel Bolt | ASTM A193 B16 |
| 10 | Gland Nut | Alloy Steel Nut | ASTM A194 Gr.4 |
| 11 | Yoke / Bracket | Carbon Steel | ASTM A216 WCB |
| 12 | Stem Nut | High-strength Brass / Ductile Iron | (Self-lubricating) |
| 13 | Handwheel | Ductile Iron / Carbon Steel | (Hammer blow design) |
| 14 | Bonnet Stud / Nut | B16 / Gr.4 (Class 1500) | ASTM A193 B16 / A194 Gr.4 |
5. Dimensions & Weights (Class 1500, SW/BW, Handwheel Operated)
| Size | DN | Face-to-Face L (mm) | Center to Top H (Open) (mm) | Handwheel Dia. W (mm) | Approx. Weight (kg) |
|---|---|---|---|---|---|
| 1/2″ | 15 | 79 | ~195 | 100 | 4.5 |
| 3/4″ | 20 | 92 | ~205 | 125 | 5.8 |
| 1″ | 25 | 111 | ~245 | 150 | 8.0 |
| 1-1/4″ | 32 | 130 | ~270 | 180 | 11.5 |
| 1-1/2″ | 40 | 146 | ~295 | 200 | 14.0 |
| 2″ | 50 | 165 | ~350 | 250 | 20.0 |
Note: Flanged end face-to-face dimensions are provided per ASME B16.10. Weight tolerance ±5%.
6. Testing & Inspection
-
Shell Test: 1.5 times max. allowable working pressure (at 100°F rating per ASME B16.34)
-
Seat Closure Test: 1.1 times max. allowable working pressure
-
Backseat Test: Low-pressure air test
-
Visual & Dimensional Inspection: Per MSS SP-55 / Purchaser’s specification
-
Optional NDE: Radiography / Ultrasonic / Penetrant / Magnetic Particle (per order requirements)
7. Design Features & Options
-
Close Die Forged Body: Fine grain structure, free from internal defects, offering superior high-pressure fatigue resistance.
-
Pressure Seal Bonnet (PSB): Seal tightness increases with system pressure; zero external leakage design, easy maintenance.
-
Blow-out Proof Stem: Stem has an integral shoulder with backseat function to prevent stem ejection under abnormal pressure.
-
Stellite Hard-faced Seating Surfaces: Resistant to erosion and galling; excellent sealing integrity maintained at elevated temperatures.
-
Live-loaded Packing (Optional): Disc spring compensation for packing relaxation, ideal for significant temperature cycling.
-
Extended Bonnet (Optional): For cryogenic or high-temperature service to keep packing within proper working temperature range.
-
Low-Emission Packing (Optional): Complies with ISO 15848 or TA-Luft fugitive emission requirements.
-
Actuator Mounting: ISO 5210 standard mounting flange interface for pneumatic, electric, or hydraulic actuators.
-
Sour Service (Optional): Materials compliant with NACE MR0175/ISO 15156 can be provided for resistance to sulfide stress cracking.
For further customization of dimensions, connection standards, or specific service selections, please contact our technical department.
