Graphite & Carbon Corporation is engaged in manufacturing and exporting a wide range of mechanical shaft seals such as balanced seals, unbalanced seals, rubber bellow seals, teflon bellow seals, double seals, double mechanical seals, single spring unbalanced seals, plain shaft seals, brazed face seals, seals with pumping screw, multiple spring in sleeves, etc. These are highly effective in use and are offered in various shapes, sizes and designs. Moreover, we also customize our range as per the specifications and requirements of our clients. Our clients can avail our range at market leading rates from us.
We offer a vast range of mechanical shaft seals to our clients, these are listed below:
Rubber Bellow Seals
|Type GCC 301 Series|
Rubber bellow seals are the most general purpose, low cost seals. The mediums are all type P-28 or centrifugal pumps turbine pumps, agitators, mixers, refrigerators, compressors etc.
The rotary unit is of a simple design and consists of flexible elastomeric bellow. Lapped Mating lace. Single coiled spring driving band and disc. The seal has a large single coiled spring, which is non-clogging and self-cleaning and hence can be used for media of varying contaminations
The primary seal face is of high grade carbon. The bellows are made from neoprene vition. and nitrile rubbers. The stationary face is of ceramic, stellite or tungsten carbide depending on the service condition.
- The mediums are all oil. water, general corrosive liquid
- For Auto-cooling pumps, centrifugal pumps, submersible pumps and industrial pumps.
Operation Limits :
- Temperature : From Cryogenics to 260° C
- Pressure : Below atmospheric to 200 p.s.i.
- Speed : 1500 RPM
- Size : 1/2 to 4
Teflon Bellow Seals
|Type GCC 401 Series|
The teflon bellow seals are unrivalled In their ability to withstand highly corrosive fluids such as acids, alkalis, strong oxidizing' reducing agents etc.
All seal components that come in contact with pumped fluid are chemically inert materials like PTFE. GFT and pure Ceramic The heart of the seal is the flexible PTFE Below made from virgin grade Teflon. Springs and other metal parts are In Haste alloy-C. Alloy-20 etc. The rotary face is of glass filled Teflon. The Stationary face is pure ceramic. These seals are always installed externally
- The mediums are all type of strong acid, oxidant and other strong corrosive mediums.
- Externally mounted, single face, multiple springs and driven by pure PTFFE bellows Non-pusher, internal balance structure, fine fluctuate of compensation and reliable seals.
- Temperature; From Cryogenics to - 120° C
- Pressure : Below atmospheric to 75 p.s.i.
- Speed : 4000 RPM
- Size : 3/4" to 3"
Double Mechanical Seals
Type GCC 101/ GCC 101 Series
Type GCC 101-B Series
The GCC 101 Series Seals are designed to handle clear liquids under normal PV conditions. The seals have a simple, compact design, are easy to install and practically need no maintenance. The seals incorporate robust construction for maximum durability and operational reliability. The GCC 101 Series are unbalanced seals. The rotary unit is of compact design, consisting of multiple springs, dynamic secondary seal ring and a seal face, all accommodated in a retainer. Multiple Springs are used to avoid distortion at high speeds and ensure uniform pressure on-seal faces under all operating conditions. Secondary Seal Rings are available in various forms such as 'O' Rings, Square Rings, Wedge, etc. and in various elastomers such as viton, neoprene, silicon, Bunna-N, EPT, Teflon, GFT, Grafoil, etc. The mating faces can be of high grade carbon, stellite, tungsten carbide, ceramic, etc. depending on the service conditions.
The mediums are all types of rotating equipment, pumps, mixers, agitators and compressors
To suit industries such as general chemical, oil refining, petrochemical, pharmaceutical, food processing, pulp and paper and waste water treatment
Plain Shaft Seals
The plain shaft seals offered by us has extensive usage in various industrial applications. The M2 mechanical seal range features a spring loaded solid carbon graphite seal face. These prove to be extremely cost effective, especially for basic applications, such as circulating pumps for water and heating systems.
For plain shafts, spring rotating a M2N:
Brazed Face Seals
We bring forth a wide range of brazed face seals that includes M37 and M37G. M37 (d1 max. 55 mm) is the same as type M3N, but is provided with the seal face brazed (tungsten carbide) to the seal face carrier. M37G is also the same as M3N, but has a seal face shrink-fitted (silicon carbide) into the seal face housing. Our range is available in numerous specifications and can be customized as per the requirements of our clients.
Seals With Pumping Screw
The seals with pumping screw manufactured by us are similar in dimensions as type M7N, but are offered with pumping screw, which depends on the direction of rotation. Our range includes M7S2, M74S2 and M78N, and their related information is given below:
d1= 18 - 100 mm to max. 180°C
Description and unspecified dimensions as for M 7 N
Design of the rotating portion especially for secondary sealing element made of PTFE (T)
The multiple seals MG1 offered by us can also be used as a double seal in tandem or back-to-back 22 Multiple Seals arrangement. Installation proposals of these seals can be supplied on request. The multiple seals offered by us are manufactured using high grade raw material and are offered in various specifications as per the requirements of the clients.
Multiple Spring in Sleeves
Our range of multiple spring in sleeves includes H75, H76, H7F and H75F. Manufactured using quality material, these find application in various industries and are offered at market leading prices to our clients. We offer our range in standard, as well as a customized range, as per the specifications and requirements of our clients.
Certain essential features of our range are mentioned below:
d1 = 28 ...200 mm
As H7N, but with multiple springs in sleeves (Item number 1.5)
Axial movement ± 2 to 4 mm, depending on diameter
d1 max. 100 mm
Axial movement ± 0.5 mm
d1 = 28... 200 mm
Axial movement d1 28... 55 = ± 2 mm
d1 58... 100 = ± 3mm, d1 105... 200 = ±4mm
Item numbers and descriptions as for H 7 N, but with pumping screw, depending upon direction of rotation
Unquoted dimensions as for H7N
Double Mechanical Seals
Type GCC 100 A
Type GCC 101-Series
Our organization is engaged in manufacturing and exporting of a highly durable range of double mechanical seals. Our range includes Type GCC 101 / GCC 101 Series Unbalanced Double Mechanical Seals and Type GCC 101-B Series Balanced Seals. These are manufactured using high grade raw material and find application in various industries.
Some of the related information about these is mentioned below:
Type GCC 101 / GCC 101 Series Unbalanced Double Mechanical Seals
The Double Mechanical Seals offered by us are suitable where absolute leak-proof sealing is necessary due to the toxic / hazardous / volatile nature of the fluid. These are combination of two conventional seals installed back to back inside the stuffing box. A compatible clean liquid is circulated between the two seals at a higher pressure then the pumpage product.
The inner seal prevents the circulated liquid to enter the system and the other seal prevents it from leaking into the atmosphere. The circulation of the liquid reduces the heat generated on the seal faces. These seals are available in different combinations, suiting the service conditions. This is a combination of two unbalanced multi spring seals, mounted back to back.
For all type of equipment of pumping and centrifugal rotary
The mediums are oil, water and weak corrosive solution
Double face, multiple springs, unbalanced structure and driven by set screw
We are a trusted name in the field of manufacturing of double seals. Our range includes Cartex-DE, Double seal and Cartex-K-DE Double seal. These cater to the requirements of various industries and are in great demand among our clients due to features like quality and durability. We offer our range at cost effective prices to our clients.
Our range encompasses the following:
Cartex-DE Double Seal
Cartex-K-DE Double Seal
Parts in contact with the product are coated with Hater" (d2 larger)
For aggressive media such as hydrofluoric acid, bromine, iron chlorides, hypocblorides and hydrochloric acid
Dimensions, design and operating limits like Cartex-DE
Accept temperature = 80°C (higher temperatures on request)