Sanitary Diaphragm Valve

Pneumatic Tank Bottom Diaphragm Valve

All synthetic resin and additive are comply with FDA certification
Material chemical composition, physical properties and manufacturing process are documented
The valve is excellent for flow control as well as for open/ close duties
Product description: Various standards of valve can be provided to clients:DIN,3A,SMS,ISO,BS/RJT,ASME/BPE etc.
INQUIRY

Working principle

Manual or pneumatic operation, specifically for sanitary and aseptic processes in the pharmaceutical industry. This valve is ideal for fluid control and on/off tasks. The diaphragm provides a body seal and a seat seal. There is no path to the outside environment, so the diaphragm valve is suitable for aseptic processes. When the valve is closed, the pressure pad supporting the diaphragm moves toward the sealing surface on the valve body. As the pressure plate moves, the diaphragm bends and is forced to the seat area in the center of the valve body, thus closing the fluid path to the valve body. The relationship between the valve body and the pressure plate prevents the compression of the diaphragm. The valve can be operated manually or pneumatically, or it can be controlled by a controller and solenoid valve.

Technical Specification

Pneumatic tank bottom diaphragm valve is specially used for discharging medium from tanks, no resort at the chamber.
Size: 1"-4", DN25-DN100
Highest Temperature: -30 to 150 ℃ (Depending on diaphragm) (Stainless steel actuator)
Highest Temperature: -30 to 130 ℃ (Depending on diaphragm) (Plastic actuator)
Maximum Pressure: Unidirectional (DELTA P = 100%)
Normally closed rubber 8bar, PTFE 6bar (option)
Normally closed rubber 6bar, PTFE 4.5bar (standard)
Normally open and double acting rubber 8bar, PTFE 6bar
Facelift different actuators can meet higher pressure rating
Forged Body: 1.4404 / 316L /1.4435 NB2
Cast body: 1.4404 / 316L
Connection: Weld, Clamp, Flange, Thread
Body Structure: 2 channels, 3 channels, etc.
Diaphragm Material: EPDM + PTFE (double layer) / EPDM / Silicon / FPM (Viton)
Certificate: 3A-54-02 / 1580, PED 97/23 EC, FDA177.2600

Weld

Size		A	L	*DT**
Size		A	L	DIN	DIN11850-2	ISO / SMS	3A / BPE
DN10	1/2'	90	16	12*1.5	13*1.5	12.7*1.5	12.7*1.65
DN15	3/4'	90	16	18*1.5	19*1.5	19.1*1.5	19.1*1.65
DN20	/	90	16	22*1.5	23*1.5	/	/
DN25	1'	120	20	28*1.5	29*1.5	25.4*1.5	25.4*1.65
DN32	1 1/4'	160	20	34*1.5	35*1.5	31.8*1.5	/
DN40	1 1/2'	160	20	40*1.5	41*1.5	38.1*1.5	38.1*1.65
DN50	2'	200	30	52*1.5	53*1.5	50.8*1.5	50.8*1.65

Clamp

Size		A	L	*Kd**
Size		A	L	DIN	DIN11850-2	ISO / SMS	3A / BPE
DN10	1/2'	90	16	34*8	34*9	25*9.7	25*9.4
DN15	3/4'	90	16	34*15	34*16	25*16.05	25*15.75
DN20	/	90	16	34*19	34*20	/	/
DN25	1'	120	20	50.5*25	50.5*26	50.5*22.4	50.55*22.1
DN32	1 1/4'	160	20	50.5*31	50.5*32	50.5*28.8	/
DN40	1 1/2'	160	20	50.5*37	50.5*38	50.5*35.1	50.5*34.8
DN50	2'	200	30	64*49	64*50	64*47.8	64*47.5