Root Type Positive Displacement Flow Meter Model JA (Standard Type)

Model	:	JA (Standard Type)
Manufacturer	:	NEW - FLOW
Origin	:	TAIWAN

 

 

 

The Principle

The flow meter was designed a special two rotary of Roots for measuring the volume of liquid fluid when the fluid running into the meter pushes two Roots, The driving roots drive a magnet coupling with a direct gear. Then the magnet coupling transmit to the totalizing counts with a gear too. It comes to measure the amount of the fluid which pass to the meter.

Application

Petroleum and Petrochemical	:	For process control
Chemical	:	Process control; shipment of products; intake of materials.
Pharmaceutical & paint	:	Mixing of various types; quality control; shipment of products.
Food & fat	:	Mixing of ingredients, tank-to -tank- transfer, shipment of products
Steel making & Shipbuilding	:	Measuring fuel consumption of burner, diesel engine fuel.

 

 

 

 

 

 

 

Materials of constructor

 

	Body	Packings
1	Cast Iron	Asbestos # 1910
2	Ductile Cast Iron	Asbestos # 1910
3	304 Stainless Steel	Teflon
4	316 Stainless	Teflon

 

 

 

 

 

 

 

	Inner housing	Roots	Roots shaft	driving	Other
A	Bronze	Aluminum	Stainless Steel	304 Stainless Steel	304 Stainless Steel
B	Bronze	Bronze	Stainless Steel	304 Stainless Steel	304 Stainless Steel
C	Bronze	304 Stainless Steel	Stainless Steel	304 Stainless Steel	304 Stainless Steel
D	304 Stainless Steel	304 Stainless Steel	304 Stainless Steel	304 Stainless Steel	304 Stainless Steel
E	316 Stainless Steel	316 Stainless Steel	316 Stainless Steel	316 Stainless Steel	316  Stainless Steel

 

 

 

 

 

 

 

 

 

 

 

 

				Water		Chemicals	Petrochemicals
Type number	Diameter (mm)	terms viscosity		80°C less normal temp. water	80~120°C high temp. water	Concentrated sulfuric acid, nitric acid	Plasticizer 50cp	Tar 500cp	Polyester 2000cp
JA	25	Normal	Intermittent	800~3,500	800~3000	800~3000	800~3,500	800~4,000	800~4,000
			Continuous	800~2,500	800~2000	800~2,500	800~3,000	800~3,000	800~3,000
		Maximum		5,500	4,000	4,000	4,000	4,500	4,500
JA	40	Normal	Intermittent	1,000 ~5,000	1,000~4,000	1,000~6,000	1,000~6,000	1,000~6,000	1,000~5,000
			Continuous	1,000~4,000	1,000~3,000	1,000~5,000	1,000~5,000	1,000~5,000	1,000~4,000
		Maximum		6,000	5,000	7,000	7,000	7,000	5,500
JA	50	Normal	Intermittent	1,500~9,000	2,000~8,000	1,000~6,000	1,000~12,000	1,000~12,000	1,000~10,000
			Continuous	1,500~7,000	2,000~6,000	1,000~5,000	1,000~10,000	1,000~10,000	1,000~7,500
		Maximum		10,000	9,000	7,500	15,000	15,000	120,000
JA	80	Normal	Intermittent	3,500~25,000	5,000~21,000	3,500~21,000	3,000~22,000	3,000~22,000	3,000~20,000
			Continuous	3,500~20,000	5,000~18,000	3,500~18,000	3,000~20,000	3,000~20,000	3,000~18,000
		Maximum		30,000	25,000	25,000	25,000	25,000	22,000

 

 

 

 

 

 

 

				Petroleum
Name of applicable fluid (reference)				L.P.G	Gasoline	Kerosene	Light oil A-heavy oil (high temp)	A-heavy oil	C-heavy oil	C-heavy oil	High viscosity fluid
Type number	Diameter (mm)	term viscosity		0.1 C P~	0.5~	2	5~	10~	150~	500~	2000~
JA	25	Normal	Intermittent	1,000~3,500	600~5,000	500~5,000	500~6,000	500~6,000	500~6,000	500~5,000	500~4,500
			Continuous	1,000~3000	600~4,000	500~4,000	500~5,000	500~5,000	500~5,000	500~4,000	500~3,500
		Maximum		5,000	6,500	6,500	7,000	7,000	7,000	6,000	5,000
JA	40	Normal	Intermittent	1,000~4,500	1,000~5,500	800~6,000	500~6,000	500~7,000	500~7000	500~6,000	500~5,500
			Continuous	1,000~3,500	1,000~4,000	800~5,000	500~5,000	500~6,000	500~6,000	500~5000	500~4,500
		Maximum		6,000	6,000	7,000	7,000	8,000	8,000	7,000	6,000
JA	50	Normal	Intermittent	2,000~10,000	2,000~10,000	1,500~12,000	800~12,000	800~12,000	1,000~12,000	1,000~12,000	1,000~10,000
			Continuous	1,000~8,000	2,000~8,500	1,500~10,000	800~10,000	800~10,000	1,000~10,000	1,000~10,000	1,000~9,000
		Maximum		12,000	12,000	13,000	13,000	13,000	12,000	12,000	11,000
JA	80	Normal	Intermittent	3,500~20,000	3,000~20,000	3,000~22,000	3,000~23,000	3,000~23,000	3,000~23,000	3,000~20,000	3,000~19,000
			Continuous	3,500~17,000	3,000~17,000	3,000~19,000	3,000~20,000	3,000~20,000	3,000~20,000	3,000~19,000	3,000~17,000
		Maximum		22,000	22,000	25,000	27,000	27,000	27,000	25,000	22,000

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* The size bigger than 80mm available, Please consult the factory.

Features

• Maximum working pressure: 10 kg/cm², Option: Up to 20kg/cm²
• Maximum temperature: 120°C (usual model)
• Model: JAH up to 200°C
• Material: Cast Iron, Ductile Cast Iron Bronze, SS304, SS316 are available
• Digital counter: 6~7 digital
• Accuracy: ±0.5%

Order Information

 

Order Code example	JAT	1	A	1	A	1	A1
Mode: JA Standard Type             JAR Zero Rest Type             JAH High Temperature Type             JAT Pulse Transmitter Type
Size: (1) 1" (2) 1½ (3) 2" (4) 3" (5) 4"
Connection Flange (A) JIS 10K (B) JIS 20K (C) ANIS 150# (D) ANSI 300# (E) PN10 (F) PN16
Body's Material (1) Cast iron  (2) Carbon steel  (3) SS304  (4) SS316
Inner Material (Housing - Roots) (A) Bronze - Aluminum  (B) Bronze - Bronze  (C) Bronze-SS304 (D) SS304-SS304 (E) SS316-SS316
Transmitter Unit The Houshing of (1) Water proof  (2) Explosion proof
Transmitter Unit To Electrical Receiver (A) Totalizer only       (1) Panel mounting type (NF-T-6)       (2) Water proof type (NF-T-6W)       (3) Air purge explosion proof type (NF-T-6EX) (B) One step controller       (1) Panel mounting type (NF-TC-6)       (2) Water proof type (NF-TC-6W)       (3) Air purge explosion proof type (NF-TC-6EX) (C) Two step controller      (1) Panel mounting type (NF-DTC-6)       (2) Water proof type (NF-DTC-6W)       (3) Air purge explosion proof type (NF-DTC-6EX) (D) Converter (P/I): pulse ---> 4~20mA       (1) Panel type (NF-PI)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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