About GM103 Gun Metal / Bronze Venturi Port Ball Valve Class-150 (Flanged)
- Item Code: GM103
- Pressure Rating: CL-150
- Testing Standard: BSEN 12266 PART-1
- Size Range: 15mm to 100mm
- Product Standard: Mfg. Standard
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Material Specification

| P. No. | NAME OF PART | MATERIAL | SPECIFICATION |
| | 1 | BOLT | AL. BRONZE | NES 862 |
| | 2 | WASHER | GUN METAL | BSEN 1982 Gr.CC491K |
| | 3 | HANDLE | C.C.S. / C.S.S. (WITH PVC GRIP) / S.S. | ASTM A216 Gr. WCB/ ASTM A351 CF8M/ BS 970 SS 316 (FABRICATED) |
| | 4 | UPPER LOCK PLATE | BRASS SHEET | IS 410 |
| | 5 | STOPPER | BRASS SHEET | IS 410 |
| | 6 | LOWER LOCKING PLATE | BRASS SHEET | IS 410 |
| | 7 | GLAND FLANGE | GUN METAL | BSEN 1982 Gr.CC491 K |
| | 8 | GLAND FOLLOWER | PH. BRONZE | BS 2874 PB 102 |
| | 9 | GLAND PACKING | PTFE | |
| | 10 | ANTISTATIC DEVICE | STAINLESS STEEL | AISI 304 |
| | 11 | BONNET | GUN METAL | BSEN 1982 Gr. CC491K |
| | 12 | GASKET | VITON B | |
| | 13 | SEAT | PTFE REINFORCED WITH 90 / 10 CU,NI | |
| | 14 | BALL | GUN METAL | BSEN 1982 Gr.CC491 K |
| | 15 | BODY | GUN METAL | BSEN 1982 Gr.CC491 K |
| | 16 | BUSHING | REINFORCED PTFE. | |
| | 17 | STUDS & NUTS | H.T. BRASS | DIN EN 12165 GR. CW721 R |
| | 18 | GLAND STUDS & NUTS | H.T. BRASS | DIN EN 12165 GR. CW721 R |
Superior Corrosion Resistance for Harsh EnvironmentsThanks to its gun metal/bronze construction and stainless steel internals, the GM103 valve offers superior resistance to corrosionespecially from saline water. This makes it ideal for coastal, marine, and water treatment applications where long-term reliability in challenging conditions is essential.
Precision Flow Control and Metering with Venturi Port DesignThe venturi port structure provides accurate flow metering and ensures reduced pressure drop, enhancing overall process efficiency. This feature is particularly valuable in industrial applications requiring precise flow control, such as chemical processing and oil & gas metering.
Zero Leakage and Reliable OperationDesigned and tested to API 598 standards, the GM103 achieves Class VI (zero leakage) performance. The quarter-turn lever operation ensures quick, dependable valve actuation, while PTFE packing and seats extend service life and reduce maintenance needs.
FAQs of GM103 Gun Metal / Bronze Venturi Port Ball Valve Class-150 (Flanged):
Q: How does the venturi port design of the GM103 ball valve benefit industrial applications?
A: The venturi port design minimizes pressure drop and enables precise metering of flow, making it ideal for processes requiring controlled and efficient fluid movement such as in chemical, water treatment, and oil & gas applications.
Q: What materials are used in the construction of the GM103 valve, and how do they enhance its durability?
A: The GM103 features a gun metal or bronze body (IS 318 Gr.LTB2), brass or stainless steel ball, stainless steel stem, and PTFE components. These materials offer excellent corrosion resistance and durability, especially in saline or chemically aggressive environments.
Q: When is it appropriate to use this valve in a system?
A: This valve is suitable whenever precise flow control and reliable shutoff are needed in systems handling water, oil, gas, or chemicals, especially where Class VI (zero leakage) and resistance to saline water are required.
Q: Where can the GM103 ball valve be installed?
A: It can be installed in a range of settings, including water treatment plants, industrial processing facilities, chemical plants, and oil & gas infrastructure. The flange ends (ANSI B16.5) accommodate standard piping connections for these industries.
Q: What is the process for operating the GM103 ball valve?
A: Operation is manual and lever-operated, requiring a simple quarter-turn to open or close the valve fully. This design allows rapid response and straightforward control for operational safety and convenience.
Q: How does the valves leakage class ensure system safety?
A: The valve is built and tested to achieve Class VI (zero leakage) according to API 598, ensuring no fluid passes through when closed, which is crucial for safety, process integrity, and environmental protection.
Q: What are the temperature and pressure limits for media in the GM103 valve?
A: The GM103 is rated for media temperatures up to 150C and operating pressures up to 150 lbs (approximately 285 psi at 38C), covering a wide range of industrial requirements.