Audited Supplier
Custom EPDM Vulcanized Pump Rubber Diaphragm Seals
Rubber Diaphragm
Rubber diaphragm is not only the sensing element but also the transmission actuator of the gas regulator. In the regulator adjustment mechanism, rubber diaphragm works by moving the connecting rod to realize the regulation of outlet pressure. This diaphragm is characterized by high sensitivity and good air tightness. It has excellent corrosion resistance, good heat resistance, high tensile strength and long service life.
Shape
According to the shape, rubber diaphragm can be divided into three types, that is, the planar rubber diaphragm, discotic rubber diaphragm and corrugated rubber diaphragm. Planar rubber diaphragm has simple making process. It has poor sensitivity.
Structure
According to the structure, rubber diaphragm can be divided into two types, that is, rubber diaphragm without skeleton and rubber diaphragm with skeleton. The former has simple structure and good flexibility. The latter has high tensile strength and good loading capacity.
Material
According to the material, rubber diaphragm can be divided into two types, nitrile rubber diaphragm and chloroprene rubber diaphragm. Nitrile rubber has good corrosion, solvent and oil resistance. It is applicable temperature ranges from -40°C to +120°C. But this type rubber has poor flexibility. Neoprene rubber has high tensile strength and good ozone resistance. It is relatively stable in oil. But has poor low temperature resistance.
| Material | Hardness (Shore A) | Temperature | Standard Size | Available |
NBR(Buna, Nitrile) FKM(FPM) EPDM Silicone(VMQ) HNBR FFKM(FFKM, Kalrez) | 60~90 70~90 60~90 40~70 60~90 70~90 | -40ºC-110ºC -20ºC-220ºC -45ºC-150ºC -55ºC-204ºC -48ºC-180ºC -18ºC-326ºC | AS-568(USA) JIS-B2401(Japan) DIN-3771(Germany) BS-1516(UK) ISO3601(International) R(France) | ID≤2000mm CS≤40mm |
| Resistance | Color | Certificate | Application | |
| Hydraulic Fluid Engine Oil Chemical Ozone & UV Steam & Hot Water Low Temperature High Temperature | Black Brown Red Green White Blue Clear Customized | ISO9001 SGS RoHS REACH | Auto Industry Construction Machinery Machine Tool Equipment Food Health Water Treatment Chemical Processing Hydraulic Pneumatic Industrial Manufacturing |
We Tianjin SWKS is a manufacturer of rubber products and plastic parts with many year experience in China. We have the trade department,engineer department, production department and after-sales service department. Our engineers could recommend sizes according to using, draw the drawings according to samples, even help to design it. OEM and ODM are welcome,you could get satisfied service there,7 days and 24 hours quick reply.
Details: 1. Small Package will shipping by express such as DHL ,TNT ,UPS ,FEDX and so on , Customer should undertake the shipping cost.
1. Q: What is your main product range?
A: SWKS is professional in designing, developing and manufacturing rubber products. For example, o rings, oil seals, piston and rod seals, rubber shock absorbers and custom rubber products.
2. Q: What kinds of rubber materials are available?
A: NBR, FKM, VMQ, EPDM, CR, SR, PU... other rubber compounds can be with your request.
3. Q: What shall be provided before a offer?
A: The materials and dimensions are needed before a offer. If the product is nonstandard, the drawing or sample shall be
provided.
4. Q: What's your payment terms and delivery date?
A: T/T, L/C, Western Union, Paypal,etc. Normally, delivery date is 7-25days according to the order.
5. Q: Which shipping method will be used for a delivery?
A: DHL, FedEx, TNT, UPS, EMS ... By seal or by air are also available.
6. Q: How to packing the goods?
A: All goods will be well packed into pp bags and outer cartons. Special packing can be available with customers' request.
