A complete VA flowmeter consists of a glass flow tube and float scaled to the flow units required, and a frame to provide the end block supports and to cover and protect the tube. The NG series frames use flow tubes with nominal 100 mm long scales. To choose a complete flowmeter select frame and separately the flow tube.

Backplate : black anodised aluminium
End block: suffix B – Brass, suffix S- Stainless Steel
Seals: Nitrile on brass units Viton on stainless steel units
Flowtube: borosilicate glass
Float: see flow tube choosen
HD: Hollow Dural, red anodised
HS: Hollow Stainless Steel
SS: Solid Stainless Steel
• Accuracy up to ±1.25% FSD
• Scales 100mm 
• Glass tube removal without tools

Air or gas calibrated Flowmeters scales are based on standard conditions of 1,013 bar abs. and 20°C 

EACH FLOWMMETERS IS MADE BY A FRAME
Es:  NGVB, NGTS, NGVS, NGIS… ecc  

AND FLOW TUBE
es:   GTF1AHS-B 

therefore pls select  at least one flowtube and one frame