About GM275 Forged Brass Double Regulating Balancing Valve With Nozzles PN-16 (Screwed)
- Item Code: GM0275
- Pressure Rating: PN-16
- Testing Standard: BS 7350
- Size Range: 20mm to 50mm
- Product Standard: Confirms to BS 7350
Suitable For


Material Specification

| P. No. | NAME OF PART | MATERIAL |
| | 1 | DISC | PTFE |
| | 2 | GASKET | PTFE |
| | 3 | PLATE | FORGED BRASS |
| | 4 | BONNET | FORGED BRASS |
| | 5 | SCREW | FORGED BRASS |
| | 6 | MANDRIL | FORGED BRASS |
| | 7 | LOCK LEVER | FORGED BRASS |
| | 8 | O-RING | EPDM |
| | 9 | O-RING | EPDM |
| | 10 | SPRING | SPRING STEEL |
| | 11 | BODY | FORGED BRASS |
| | 12 | EXHAUST VALVE LOCK CAP | FORGED BRASS |
| | 13 | EXHAUST VALVE GASKET | EPDM |
| | 14 | EXHAUST VALVE BODY | FORGED BRASS |
| | 15 | BLUE CONNECTION STRIP | EPDM |
| | 16 | EXHAUST VALVE BLOCK CAP | FORGED BRASS |
| | 17 | BLOCKING GASKET | EPDM |
| | 18 | RED CONNECTION STRIP | EPDM |
| | 19 | LOCKING SCREW | FORGED BRASS |
| | 20 | HANDWHEEL CAP | PVC |
| | 21 | PENTAGONAL HANDWHEEL | PVC |
Double Regulating Technology for Precision ControlThe GM275's double regulating (DR) mechanism ensures consistent and accurate management of water flow in HVAC and plumbing systems. The metal handwheel allows for precise adjustment, while the tamper-proof lockshield guards settings against unauthorized changes, making it ideal for both commercial and industrial applications.
Built for Reliability and Easy Field ServiceThis valve is crafted from robust forged brass with a nickel-plated finish, offering excellent resistance to corrosion and wear. Designed for minimal maintenance, it is highly suited for field servicing in dynamic environments, ensuring longevity and lower downtime in critical installations.
Integrated Nozzles for Efficient Pressure MeasurementFeaturing built-in nozzles and test points, the GM275 enables convenient differential pressure assessment. These integral test points support accurate balancing during system start-up or routine maintenance, simplifying the commissioning process and enhancing system performance.
FAQ's of GM275 Forged Brass Double Regulating Balancing Valve With Nozzles PN-16 (Screwed):
Q: How does the GM275 balancing valve enhance the hydraulic performance of HVAC systems?
A: The GM275 incorporates a double regulating mechanism and integral test points, allowing precise adjustment and reliable measurement of differential pressure, which results in optimal system balancing and energy efficiency for HVAC applications.
Q: What are the steps for proper installation of the GM275 valve?
A: Ensure the valve is installed in line with the unidirectional arrow marked on its body. Fit the screwed BSPT female x female ends securely, and use the metal handwheel for initial flow regulation. Test points should be accessible for pressure measurement during commissioning.
Q: Where is the GM275 valve typically used?
A: This valve is widely used in HVAC systems, chilled water setups, heating networks, and general plumbing applications that handle water or non-corrosive liquids. It is suitable for projects ranging from buildings to industrial facilities.
Q: When is it necessary to use the tamper-proof lockshield feature?
A: The tamper-proof lockshield should be engaged after system balancing to prevent unauthorized or accidental adjustments, maintaining the intended flow settings and system efficiency over time.
Q: What are the key benefits of using forged brass for the valve body?
A: Forged brass provides superior durability, corrosion resistance, and structural strength, ensuring that the GM275 maintains reliable operation and a long service life even under demanding pressure and temperature conditions.
Q: How do the integrated nozzles facilitate differential pressure measurement?
A: The integral nozzles (test points) allow technicians to connect measuring instruments directly to the valve, making differential pressure assessments simpler, faster, and more accurate during commissioning or routine servicing.