GB/T 595-2008 MARINE BRONZE MALE THREAD STOP VALVES
Item | Description |
|---|---|
Product Name | GB/T 595-2008 MARINE BRONZE MALE THREAD STOP 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/T 595-2008
Connection Type: Male Threaded (External Threaded)
Types Available:
Type A: Straight-through stop valve
Type B: Right-angle stop valve
Nominal Pressure: 4.0 MPa / 10.0 MPa
Nominal Diameter (DN): 6 ~ 32 mm
Body Material: Cast Aluminum Bronze / Aluminum Bronze (detailed in Table 4)
Applicable Medium: Seawater, fresh water, fuel oil, lubricating oil, air, and steam with temperatures not exceeding 250°C (for PN 4.0 MPa).
1. BASIC PARAMETERS
TABLE 1 - BASIC PARAMETERS OF STOP VALVES
| TYPE | NOMINAL PRESSURE PN / MPa | NOMINAL DIAMETER DN / mm | APPLICABLE MEDIUM |
|---|---|---|---|
| A, B | 4.0 | 15 ~ 32 | Seawater, fresh water, fuel oil, lubricating oil, air, and steam ≤ 250°C |
| A, B | 10.0 | 6 ~ 32 | Seawater, fresh water, fuel oil, lubricating oil, air |
2. DIMENSIONS AND STRUCTURAL DATA
TABLE 2 - BASIC DIMENSIONS OF STOP VALVES (DN 6 ~ DN 10) (UNIT: MM / KG)
| NOMINAL PRESSURE PN / MPa | NOMINAL DIA. DN / mm | STRUCTURAL DIMENSIONS | THREADED CONNECTION | WRENCH SIZE S1 | WRENCH SIZE S2 | HANDWHEEL D0 | STROKE m | THEORETICAL WEIGHT (kg) | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L | H | H1 | D | D1 | D2 | l | l1 | Type A | Type B | ||||||
| 10.0 | 6 | 74 | 37 | 15 | M22×1.5 | 19.8 | 14 | 14 | 3 | 24 | 27 | 80 | 7 | 0.63 | 0.59 |
| 10.0 | 10 | 94 | 47 | 20 | M27×1.5 | 24.8 | 14 | 16 | 3 | 27 | 32 | 80 | 7 | 1.14 | 1.12 |
TABLE 3 - BASIC DIMENSIONS OF STOP VALVES (DN 15 ~ DN 32) (UNIT: MM / KG)
| NOMINAL PRESSURE PN / MPa | NOMINAL DIA. DN / mm | STRUCTURAL DIMENSIONS | THREADED CONNECTION | WRENCH SIZE S1 | WRENCH SIZE S2 | HANDWHEEL D0 | STROKE m | THEORETICAL WEIGHT (kg) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L (Type A) | L (Type B) | H | H1 | D | D1 | D2 | l | l1 | Type A | Type B | |||||||
| 4.0 | 15 | 110 | 55 | 143 | 25 | M33×2 | 33.0 | 22 | 22 | 5 | 32 | 41 | 80 | 8 | 1.01 | 1.45 | |
| 4.0 | 20 | 116 | 58 | 154 | 32 | M39×2 | 36.0 | 25 | 23 | 5 | 36 | 46 | 100 | 9 | 12 | 1.80 | 1.75 |
| 4.0 | 25 | 130 | 65 | 167 | 38 | M48×2 | 45.0 | 32 | 26 | 5 | 50 | 120 | 11 | 14 | 2.51 | 2.34 | |
| 4.0 | 32 | 140 | 70 | 198 | 46 | M56×2 | 53.0 | 38 | 28 | 6 | 46 | 60 | 140 | 12 | 16 | 4.22 | 3.97 |
| 10.0 | 15 | 110 | 55 | 143 | 25 | M33×2 | 33.0 | 22 | 22 | 5 | 32 | 41 | 110 | 10 | 1.81 | 1.88 | |
| 10.0 | 20 | 120 | 64 | 154 | 32 | M39×2 | 36.0 | 25 | 23 | 5 | 36 | 46 | 130 | 11 | 14 | 3.09 | 4.16 |
| 10.0 | 25 | 130 | 68 | 167 | 38 | M48×2 | 45.0 | 32 | 26 | 5 | 46 | 50 | 140 | 12 | 13 | 4.31 | 4.52 |
| 10.0 | 32 | 146 | 73 | 220 | 46 | M56×2 | 53.0 | 38 | 28 | 6 | 55 | 60 | 140 | 12 | 15 | 4.99 | 4.52 |
Note: The structural diagrams for Type A (Straight-through) and Type B (Right-angle) are shown in Figure 1 and Figure 2. Dimensions D2 and l1 are specific to Type B (right-angle) connections.
3. MATERIALS OF MAIN PARTS
TABLE 4 - MATERIALS FOR MAIN PARTS (REFERENCE)
(Note: The image provided did not fully display Table 4. The following materials are standard for this bronze valve series based on GB/T 595. Please verify specific material grades in the official full standard.)
| PART NAME | MATERIAL NAME | GRADE | STANDARD NO. |
|---|---|---|---|
| Body | Cast Aluminum Bronze | ZCuAl8Mn2 | GB/T 1176 |
| Disc, Valve Seat, Stem | Aluminum Bronze | QA19-2 | GB/T 4423 |
| Compression Nut | Aluminum Brass | HPb59-1 | GB/T 4423 |
| Packing | Flexible Graphite | RSM | CB/T 3589 |
| Gasket | Pure Copper | T4 | GB/T 2059 |
4. TECHNICAL REQUIREMENTS
4.1 GENERAL REQUIREMENTS
Threaded connection dimensions shall comply with CB* 56.
Technical requirements, test methods, and inspection rules shall comply with GB/T 600 (General technical requirements for ship piping valves).
Castings shall be provided with test bars per furnace, retained for no less than 3 years.
4.2 STRENGTH & SEALING
The valve body shall withstand a hydraulic strength test without leakage.
The sealing surface between the disc and seat shall meet the hydraulic sealing test requirements.
The back-seat sealing (stem and bonnet) shall meet the specified leakage rate requirements.
4.3 DIMENSIONAL AND GEOMETRICAL TOLERANCES
Unindicated linear tolerances shall comply with Grade m of GB/T 1804-2000.
Form and position tolerances shall comply with Grade H of GB/T 1184-1996.
4.4 APPEARANCE, WEIGHT & MARKING
Appearance shall comply with GB/T 600.
Mass deviation shall not exceed 4% of the theoretical weight.
Marking shall comply with GB/T 3032.
5. DESIGNATION AND MARKING
DESIGNATION METHOD:
[ TYPE ] [ 10 times nominal pressure value ] [ Nominal diameter, padded with "0" if less than 3 digits ]
MARKING EXAMPLES:
Type A: For nominal pressure 10.0 MPa, nominal diameter 10 mm, straight-through stop valve:
Stop Valve GB/T 595-2008 A10010Type B: For nominal pressure 4.0 MPa, nominal diameter 20 mm, right-angle stop valve:
Stop Valve GB/T 595-2008 B40020
6. INQUIRY REQUIREMENTS (FOR BUYERS)
To ensure an accurate quotation and compliance with GB/T 595-2008, please provide the following details:
Product Name: Marine Bronze Male Thread Stop Valve
Standard: GB/T 595-2008
Type: [ ] Type A (Straight-through) / [ ] Type B (Right-angle)
Nominal Diameter (DN): [e.g., 6, 10, 15, 20, 25, 32]
Nominal Pressure (PN): [ ] 4.0 MPa / [ ] 10.0 MPa
Thread Standard Required: [ ] CB* 56 / [ ] Metric (M) / [ ] BSP / [ ] NPT
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]
