GB 598-80 MARINE BRONZE EXTERNAL THREADED COCKS
Item | Description |
|---|---|
Product Name | GB 598-80 MARINE BRONZE EXTERNAL THREADED COCKS |
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 598-80 (Replaces GB 598-78)
Material: Cast Tin Bronze (ZQSn10-2) for body and plug core
Connection Type: External Threaded (Male Threaded)
Types Available:
Type A: Straight-through cock
Type L: L-port three-way cock
Type T: T-port three-way cock
Applicable Medium: Fresh water, seawater, lubricating oil, and fuel oil
Pressure Test Standard: GB 1048-70
1. BASIC PARAMETERS
TABLE 1 - BASIC PARAMETERS OF COCKS
| NOMINAL PRESSURE Pg (kgf/cm²) | NOMINAL DIAMETER Dg (mm) | APPLICABLE MEDIUM |
|---|---|---|
| 10 | 32 | Fresh water, seawater, lubricating oil, and fuel oil |
| 16 | 20, 25 | Fresh water, seawater, lubricating oil, and fuel oil |
| 25 | 6, 10, 15 | Fresh water, seawater, lubricating oil, and fuel oil |
(Note: 1 kgf/cm² ≈ 0.1 MPa. Therefore, 10, 16, and 25 kgf/cm² roughly correspond to 1.0, 1.6, and 2.5 MPa respectively. Please confirm the required pressure unit when inquiring.)
2. DIMENSIONS AND STRUCTURAL DATA
TABLE 2 - BASIC DIMENSIONS AND WEIGHTS (UNIT: MM / KG)
| NOMINAL DIA. Dg | STRUCTURAL DIMENSIONS | THREADED CONNECTION | HANDLE L0 | HANDLE | WEIGHT (kg) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L | H1 | H | D0 | D1 | D2 | l | Type A | Type T | Type L | |||
| 6 | 70 | 20 | 60 | M22×1.5 | - | - | - | 12 | 100 | 0.42 | 0.48 | 0.49 |
| 10 | 78 | 27 | 72 | M27×1.5 | - | - | - | 15 | 110 | 0.69 | 0.71 | 0.72 |
| 15 | 92 | 37 | 92 | M36×2 | - | - | - | 16 | 115 | 1.07 | 1.24 | 1.26 |
| 20 | 98 | 40 | 99 | M36×2 | 33 | 24 | 20 | 20 | 125 | 1.52 | 1.70 | 1.72 |
| 25 | 106 | 42 | 108 | M42×2 | 39 | 29 | 20 | 20 | 140 | 1.90 | 2.22 | 2.24 |
| 32 | 126 | 49 | 120 | M48×2 | 45 | 36 | 20 | 20 | 160 | 3.47 | 3.79 | 3.89 |
(Note: Structural diagrams for Type A, Type T, and Type L are referenced in Figures 1, 2, and 3 respectively.)
3. MATERIALS
Body and Plug Core: Cast Tin Bronze ZQSn10-2 (Standard: GB 883-83).
4. TECHNICAL REQUIREMENTS
Nominal pressure and test pressure shall comply with GB 1048-70.
Mating pipe threaded joints shall comply with CB 821-75 and CB 822-75.
Other technical conditions shall comply with GB 600-65.
5. DESIGNATION AND MARKING
DESIGNATION EXAMPLES:
Type A: For Dg 6, Pg 25, Type A (Straight-through) external threaded bronze packed cock:
Cock A 25006 GB 598-80Type T: For Dg 15, Pg 25, Type T (Three-way) external threaded bronze packed cock:
Cock T 25015 GB 598-80
6. INQUIRY REQUIREMENTS (FOR BUYERS)
To ensure an accurate quotation and compliance with GB 598-80 (or an agreed equivalent standard), please provide the following details:
Product Name: Marine Bronze External Threaded Packed Cock
Standard: GB 598-80
Type: [ ] Type A (Straight-through) / [ ] Type T (T-port Three-way) / [ ] Type L (L-port Three-way)
Nominal Diameter (Dg): [e.g., 6, 15, 25, 32]
Nominal Pressure (Pg): [ ] 10 kgf/cm² / [ ] 16 kgf/cm² / [ ] 25 kgf/cm² (or equivalent MPa)
Body Material: Cast Tin Bronze ZQSn10-2 (or specify alternative)
Applicable Medium: [e.g., Seawater, Fresh Water, Fuel Oil, Lubricating Oil]
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]
