Introducing Our Gunmetal Sight Flow Indicator

John Moncrieff Ltd proudly presents the Gunmetal Sight Flow Indicator — engineered for precise, real-time liquid flow monitoring. Designed and manufactured in the UK, this unit offers exceptional visibility, durability, and reliability for a wide range of industrial applications.

Key Features

• Minimal Maintenance: Low-maintenance operation ensures dependable, long-term service.
• Enhanced Visibility: Large viewing window provides a clear view of liquid flow, presence, colour, and condition.
• Robust Construction: Precision-engineered using high-quality materials for strength and durability.
• Temperature & Pressure Resistance: Built to perform in demanding environments with high pressure and temperature exposure.
• Efficient Delivery: Short lead times ensure prompt supply and easy integration into existing systems.
• British Quality: Designed and manufactured in the UK, reflecting superior quality and craftsmanship.

Applications

• Gravity feed systems
• Intermittent or irregular flow monitoring
• Liquids containing entrained air
• Low flow rate processes

Available Styles

• Style GP (Straight Through with Spout): Incorporates a drip lip for visual confirmation of flow; suitable for mounting in any orientation.
• Style GR (Twin Rotor): Dual rotors provide positive flow indication; ideal for applications where clear movement is essential.
• Style GF (Flap with Scaleplate): Offers accurate flow rate indication via a scale plate; optional spring-loaded flap for vertical or higher flow rate systems.

Customisation Options

• Glass Options: Toughened Soda Lime or Toughened Borosilicate glass, selected to meet chemical and thermal requirements.
• Connection Types: BSPP, BSPT, or NPT thread configurations available for system compatibility.

Quality Assurance

• ISO 9001 Certified: Our quality management system is independently audited by BSI, ensuring full compliance with international standards.
• Material Traceability: Full traceability with certification documentation supplied upon request.

Materials of Construction

• Body: Gunmetal BS 1400 LG2
• Covers: Brass BS 2872 CZ 122
• Windows: Toughened Soda Lime BS 3463 or Toughened Borosilicate BS 3463
• Gaskets: Klingersil C4400
• Edge Protector: Klingersil C4400
• Fasteners: Stainless Steel A2
• Rotors: POM (‘Hostaform’)
• Flap: Stainless Steel ASTM A351 CF8M (316)
• Spindle: Stainless Steel ASTM A351 CF8M (316)
• Scaleplate: ANSI 302 Type Stainless Steel

John Moncrieff Ltd continues its legacy of engineering excellence with this UK-manufactured gunmetal sight flow indicator — a proven solution for precise, visual flow monitoring under demanding process conditions.