G6b41j Pneumatic Rubber Lined Diaphragm Valve (normally closed)

• Media: Water
• Temperature: High Temperature
• Actuator: Electric
• Connection: Flanged Diaphragm Valve
• Material: Cast Steel
• Structure: Roof Type Diaphragm Valve
• Model NO.: G6B41J
• Pressure: High Temperature
• Flow Direction: Reversing
• Function: Solenoid Valve, Electronic Type, Intelligent Type, Field Bus
• Usage: Safety, Drain, Temperature Control, Flow Control
• Standard: DIN, GB, ANSI, BSW, JIS
• Transport Package: Wooden Box
• Specification: DN15-DN800
• Trademark: XC
• Origin: China
• HS Code: 8481804090
• Production Capacity: 9999

Product Description

Product Features: G6B41J-10 normally closed pneumatic G6B41W-6.4 G6B41J-6.4 G6B41FS-6.4 Design and manufacture according to: GB12239 Structure length according to: GB12221 flange connection size according to: GB4216.4 Test and inspection press: GB/T13927 normally closed pneumatic rubber lined diaphragm valve
G6B41J normally closed pneumatic rubber lined diaphragm valve uses and main performance specifications
1. This series of diaphragm valves can be applied to different fluid medium pipelines at different temperatures according to different visual wrapping materials, as a control medium flow opening and closing mechanism.
2.G6B41J normally closed pneumatic rubber lined diaphragm valve, the recommended range of use of various visual wrap materials:

Visual wrap material (code)	Applicable temperature	Applicable medium
Hard rubber (NR)	-10 o C ~ 85 o C	In addition to strong oxidants (such as sales acid, chromic acid, concentrated sulfuric acid and hydrogen peroxide and other organic solvents), hydrochloric acid, fluorosilicic acid, formic acid and phenolic acid, hydrochloric acid, 30% sulfuric acid, 50% hy-drofluoric acid, 80% phosphoric acid, alkali, salt, gold-plated solution, sodium hydroxide, potassium hydroxide, neutral salt solution, 10% sodium hypochlorite, wet chlorine gas, ammonia water, most alcohols, Organic acids and aldehydes, etc.
Soft rubber (BR)	-10 o C ~ 85 o C]	Has good wear resistance. Mainly used for less than 50% of sulfuric acid, sodium hydroxide, potassium hydroxide, neutral salt bath solution and ammonia solution, cement, clay, cinder ash, granular fertilizer and wear strong solid fluid, thick mucus of various concentrations.
Butyl adhesive (IIR)	-10 o C ~ 120 o C	Resistant to corrosion and wear. Capable of most organic acids, alkali and hydroxide compounds, inorganic salts and inorganic acid elemental gases, alcohols, aldehydes, ethers, ketones, esters and so on.
Neoprene adhesive	(CR) -10 o C ~ 120 o C	Animal oils, vegetable oils and inorganic lubricants and corrosive mud with a wide range of pH values, good wear resistance.
Cast iron is not coated	-40 o C to 100 o C	Non-corrosive media

Recommended range of diaphragm materials:

Diaphragm material (code)	Suitable temperature	Suitable medium
Butyl glue (Grade B)	-40 o C ~ 100 o C	Good acid and alkaline resistance. 85% sulfuric acid, hydrochloric acid, hydroflu-oric acid, phosphoric acid, loaded base and a variety of esters.
Natural glue (Grade Q)	-50 o C to 100 o C	For purifying water, inorganic salts, and diluting inorganic acids.

Main performance parameters of normally closed pneumatic rubber lined diaphragm valve:

Model	Nominal diameter DN (mm)	Working pressure WP (Mpa)	Test pressure (Mpa)		Test temperature (o C)
			Seal	Strength
EG41J W-16	20 to 50	1.6	1.76	2.4	Room temperature
EG41J W-10	65-200.	1.0	1.1	1.5

G6B41J normally closed pneumatic rubber lined diaphragm valve structure characteristics and principle of action
2. The big difference between diaphragm valve and other valves is that: the structure of no stuffing box is used; Rubber diaphragm can make the corrosive medium in the flow channel and all the driving components in a completely isolated state, so as to eliminate the usual valve "running, taking, dripping, leakage" and other drawbacks.
3. Because the diaphragm valve's flow path is smooth and the flow resistance is small, a larger flow rate can be obtained.
4. The surface of the valve body cavity of the diaphragm valve appears to have a variety of rubber for choice. Therefore, it has superior corrosion resistance characteristics.
5. Because the seal is elastic rubber diaphragm. Therefore, it also has good sealing and small closing force.
6. The valve is composed of body, valve cover, disc, stem, diaphragm and other driving parts.
7. The opening and closing of the valve is achieved by rotating the hand wheel. The diaphragm valve is marked on the upper end of the valve cover with the display color of the opening or closing position of the valve to indicate the opening and closing stroke of the valve. When the handwheel is placed clockwise, the handwheel is moved down, and the valve disc then drives the diaphragm down to cut off the path; On the contrary, the valve is opened, and the color is revealed.
8. The diaphragm valve adopts the standard: in accordance with the provisions of GB12239, and meets the requirements of BS5156.
Normally closed pneumatic rubber lined diaphragm valve main parts of the material

Serial number	Name	Materials
1	Body valve	Cast iron
2	Liner layer	Rubber
3	Diaphragm	Rubber
4	Valve flap	Cast iron
5	Bonnet	Cast iron
6	Stem	Carbon steel
7	Handwheel	Cast iron

Normally closed pneumatic rubber lined diaphragm valve main connection size

Nominal diameter DN (mm)	Nominal pressure PN (MPa)	Working pressure WP (MPa)	Main overall dimensions (mm)										Scope of application	Weight (kg)
			L		D1	D	D0	?	Z	H	Temperature (°C)	Medium
			J-type	W type								J-type	W type
20	1.6	1.6	121	117	75	105	70	13.5	4	103	Less than or equal to 100	Generally corrosive	Non-corrosive	3
25			131	127	85	115	83			112				4.3
32			150	146	100	140	114	17.5		144				6.5
40			163	159	110	150				156				7.9
50			194	190	125	165	140			177				10.6
65	1.0	1.0	220	216	145	185	165			164.5				17.6
80			258	254	160	200	230		8	181.5				25.5
100			309	305	180	220	280			253				36.2
125			362	356	210	250				282				47.5
150			412	406	240	285	368			366.5				74
200			527	521	295	342	483	22						143