Rolling diaphragm - Page 14 of 14 - GENERAL SEALTECH LIMITED

Rolling diaphragm is a type of diaphragm valve whose diaphragm sealing element is installed on the rolling shaft. This is different from standard diaphragm valves, where the diaphragm is directly installed on the valve body. Rolling diaphragms are used in applications where frequent replacement of the diaphragm or excessive torque on the valve stem may damage the diaphragm. For example, in applications such as disinfection equipment and pharmaceutical production that require frequent and safe replacement of membranes

Posts

How can products occupy the highland of the rubber diaphragm industry?

News

How can products occupy the highland of the rubber diaphragm industry? Product Introduction Performance Features: Quick installation, dozens of digital display brands, complete prices, specifications, payment time from 1-2 hours to 2 hours, 200 yuan per hour, 60 yuan per hour, 1000 yuan per hour,

Brands: manufacturers of products such as Arlon, Milton, Liotek, Moruo Filter, Submersible Electric Pump, Mud Pump, Shielded Pump, Mud Pump, Submersible Electric Pump, Mud Pump, Shielded Pump, Submersible Pump, etc.

Brands: Allong, SS, LiD Remarks, 601, Miss Xu 7, Miss Zhang, 0K, IP65, 10K, DIN, JIS, coating pump, ink pump, pneumatic diaphragm pump, metering pump, chemical gas pipe pump, vacuum pump, controller, etc.

Brand: contactless relay, manual/fluorine lined/rubber lined, fuel pump, high-pressure oil well, woven oil pump, sewage pump, except for “pump”, there are wired, directly locked, colored, qualitative, rubber, and various types of rubber.

Building materials: screw pump, pigment pump, toy processing equipment, machine tool belt, closed door pit pump, screw pump, metering pump, mold and accessories, cosmetics board, thick film belt, art mold, printing and dyeing machine. Engraved screw pump, cast iron belt, rubber We customized, processing belt, glue sealing, electroplating, stainless steel, plastic, printing belt, rubber, textile belt, industrial waste disposal.

Furniture factory: Wood factory, flooring, furniture, fertilizer factory, ash silo, incinerator, refractory material, automobile, power plant, cement factory, carbon black, copper wall, carbon black, belt, printing and dyeing, civil engineering, rubber, leak proof conveying, automatic cleaning, alarm, Qinhuangdao power loss, wet electrostatic precipitator, glass factory, equipment ash silo, drying equipment, high-voltage ash silo, power testing equipment, dust removal accessories, woven protective ash box, anti-static membrane filter cartridge Frame, explosion-proof ash device, plastic ventilation, drying equipment, plastic agricultural kiln tail electricity, and other types.

Rubber diaphragm, cloth clip diaphragm, metal hard sealing rubber diaphragm is resistant to high temperature, oil, high vacuum, solvent, aromatic rubber, saline water, silicone, sulfuric acid, hydrofluoric acid, aqua regia, flour, sulfuric acid, hydrochloric acid, hydrofluoric acid, aqua regia, nitrile, and Beihai City.

Rubber diaphragm double-layer browsing inch pneumatic ball valve, electric butterfly valve, electric gate valve, pneumatic ball valve, electric gate valve, pneumatic stop valve, rubber diaphragm plate type ball valve, fluorine lining diaphragm, servo diaphragm, fluorine lining diaphragm.

Common faults and malfunctions of pneumatic ball valves should be promptly reported in case of any abnormal conditions. Any damage, fault recovery, motor, etc. should be promptly eliminated.

2023-06-14/by rub

Rolling diaphragm pressure compensator used for deep-sea manned submersibles | Idiaphragm

Faq, News

The hydraulic system of manned submersibles generally adopts an underwater pressure compensator to avoid the influence of water pressure． GENERAL SEALTECH LIMITED think as the key structural parameter，the inner diameter is the biggest factor influencing both peak values．The larger the inner diameter，the smaller the peak of the pressure difference inside and outside the Rolling diaphragm．

Rolling diaphragm

Based on the design principle that the peak of pressure difference should be less than the safe working pressure of Rolling diaphragm，the boundary constraint and valuing method of the inner diameter of a compensator was attained． Based on the key parameter，which is the inner diameter of a compensator，the compensator can be designed accurately and reliably． This method has been widely used in some deep－sea vehicles． Practical application shows that the method is feasible and effective．

The hydraulic system of manned submersibles generally adopts an underwater pressure compensator to avoid the influence of water pressure.

In the 1960s, the United States began to develop manned submersibles. The underwater hydraulic technology developed rapidly. The pressure compensation technology relied on a pressure compensator. The pressure compensators currently available have a bladder type, a bellows-type and a rubber diaphragm type. In the pressure compensator, the bladder, bellows and compressed air bottle are suitable for compensating the cavity whose volume does not change. It is called static compensation. Only the rubber diaphragm pressure compensator is suitable for compensating the volume change cavity. The rubber diaphragm is divided into a flat diaphragm, a corrugated diaphragm, and a rolling diaphragm, and the flat diaphragm has a small compensation amount; then, the underwater hydraulic system belongs to a volume change cavity, so a rubber diaphragm pressure compensator should be used. The wave diaphragm has a large amount of compensation, but it can be deformed and deformed into a serious nonlinearity; the rolling diaphragm is good, the stroke is large, and the deformation resistance is small.

Therefore, the rolling diaphragm pressure compensator is widely used in the current deep-sea equipment, China The hydraulic system of the “JiaoLong” manned submersible uses a rolling diaphragm pressure compensator for compensating the volume change chamber, so it is often integrated with the fuel tank design, and the compensator is used as a hydraulic system tank. The entire hydraulic system can also be pressure compensated. The designed rolling diaphragm provides reliable quality and technical support for the pressure compensator design.

2019-11-21/by rub