GB 597-83 MARINE BRONZE MALE THREAD LIFT CHECK VALVES
Item | Description |
|---|---|
Product Name | GB 597-83 MARINE BRONZE MALE THREAD LIFT CHECK VALVES |
Certificates | ABS, LR, BV, DNV, RINA, CCS |
FOB Price | Get Latest Price Now |
Warranty | 12 months (unless otherwise specified) |
Place of Origin | China |
Overview
KEY FEATURES
Standard: GB 597-83 (Replaces GB 597-76)
Material: Cast Aluminum Bronze (ZQAl9-2) and Aluminum Bronze (QAl9-2)
Connection Type: Male Threaded (External Threaded)
Types Available:
Type A: Straight-through type
Type B: Right-angle type
Applicable Medium: Sea water, fresh water, lubricating oil, fuel oil, and steam (≤250°C)
Design Pressure: PN 4.0 kgf/cm² (0.4 MPa)
1. BASIC PARAMETERS
TABLE 1 - BASIC PARAMETERS OF LIFT CHECK VALVES
| NOMINAL PRESSURE PN (kgf/cm² / MPa) | NOMINAL DIAMETER DN (mm) | APPLICABLE MEDIUM |
|---|---|---|
| 4.0 (0.4) | 10 ~ 32 | Sea water, fresh water, lubricating oil, fuel oil and steam t≤250°C |
2. DIMENSIONS AND STRUCTURAL DATA
TABLE 2 - BASIC DIMENSIONS AND WEIGHTS (UNIT: MM / KG)
| NOMINAL DIA. DN | STRUCTURAL DIMENSIONS | THREADED CONNECTION | WRENCH SIZE S | WEIGHT (kg) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| L | H | H1 | D | D1 | D2 | l | Type A | Type B | |||
| 10 | 84 | 47 | 54 | 20 | M27×1.5 | 24.8 | 14 | 16 | 3 | 0.41 | 0.58 |
| 15 | 110 | 58 | 61 | 25 | M33×2 | 33 | 22 | 22 | 5 | 0.90 | 1.00 |
| 20 | 119 | 56 | 76 | 28 | M39×2 | 36 | 23 | 27 | 6 | 1.19 | 1.04 |
| 25 | 128 | 65 | 78 | 30 | M42×2 | 39 | 23 | 32 | 6 | 1.50 | 1.24 |
| 32 | 140 | 70 | 84 | 36 | M48×2 | 45 | 28 | 36 | 6 | 1.98 | 1.58 |
Note: Figure 1 (Type A - Straight-through) and Figure 2 (Type B - Right-angle) show the structural diagrams. Dimensions L, H, H1 and thread connections are critical for installation.
3. MATERIALS OF MAIN PARTS
TABLE 3 - MATERIALS FOR MAIN PARTS
| PART NAME | MATERIAL NAME | GRADE | STANDARD NO. |
|---|---|---|---|
| Body | Cast Aluminum Bronze | ZQAl9-2 | CB 882-78 |
| Disc, Stem | Aluminum Bronze | QAl9-2 | YB 458-71 |
4. TECHNICAL REQUIREMENTS
Threaded Connections: Shall comply with CB 56-80 "Pipe Plain Shoulder Threaded Joints".
Technical Conditions for Marking, Testing, and Acceptance: Shall comply with GB 600-82 "General Technical Conditions for Marine Piping Valves".
5. DESIGNATION AND MARKING
DESIGNATION EXAMPLES:
Type A: For PN 4.0, DN 20, Type A (Straight-through) male threaded bronze lift check valve:
Straight-through Check Valve A0020 GB 597-83Type B: For PN 4.0, DN 25, Type B (Right-angle) male threaded bronze lift check valve:
Right-angle Check Valve B0025 GB 597-83
6. INQUIRY REQUIREMENTS (FOR BUYERS)
To ensure an accurate quotation and compliance with GB 597-83 (or an agreed equivalent standard), please provide the following details:
Product Name: Marine Bronze Male Thread Lift Check Valve
Standard: GB 597-83
Type: [ ] Type A (Straight-through) / [ ] Type B (Right-angle)
Nominal Diameter (DN): [e.g., 10, 15, 20, 25, 32]
Nominal Pressure (PN): [ ] 4.0 kgf/cm² (0.4 MPa)
Thread Standard Required: [ ] CB 56-80 / [ ] Metric (M) / [ ] BSP / [ ] NPT
Body Material: Cast Aluminum Bronze ZQAl9-2 (or specify alternative)
Applicable Medium & Temperature: [e.g., Seawater at 30°C, Steam at 200°C]
Quantity: [e.g., 10 pcs]
Destination Port: [e.g., Singapore, Rotterdam]
Inspection Requirements: [e.g., EN 10204 3.1 Certificate, Third-Party Witness]
Classification Society Required: [e.g., NK, LR, DNV, ABS, CCS, or None]
