86-318-6661617
(Rm. 1102, Bldg. 408, Tianyuan Yishui Garden) East Of Weiming Street, North Of Renmin Road, Hengshui, Hebei, China (Mainland)
pressure up to 250 bar cryoprnices temperature as low as -200°C and up to elevated temperature of 1000°C. Products are widely used in the oil, gas, petrochemical process and engineering industries.
Spiral wound gaskets type:
Type | Thickness(mm) | |
Basic form | 3.2 | 4.5 |
With inner ring |
| 4.5 |
With outer ring |
| 4.5 |
With inner and outer ring |
| 4.5 |
Structure type:
Filler | Hoop | Inner ring | Outer ring |
| SUS 304 | Carbon steel | Carbon steel |
Graphite | SUS 316 | SUS 304 | SUS 304 |
PTFE | SUS 316L | SUS 316 | SUS 316 |
|
| SUS 316L | SUS 316L |
The table below may be used for selected material of inner ring and winding metal.
Trade name | AISI | Hardness(HB/HV) | Temperature(°C) |
Stainless steel 304 | 304 | 130~180 | -250~+550 |
Stainless steel 316 | 316 | 130~180 | -100~+550 |
Stainless steel 316L | 316L | 130~190 | -100~+550 |
The outer ring is generally manufactured from carbon steel with an anti-corronsion treatment.
The table below may be used for determining the correct filler.
Filler material | Temperature(°C) | Max operating pressure(kg/cm2) |
Graphite | -200~550 | 250 |
| -150~450 | 100 |
PTFE | -240~260 | 100 |
Flange type and Spiral Wound Gasket form
Flange type | Spiral Wound Gasket form |
Flat face flange(F.F) | Gasket with an outer ring |
Gasket with an inner and outer ring | |
Raised face flange(R.F) | Gasket with an outer ring |
Gasket with an inner and outer ring | |
Male and female flange(M & F) | Basic form gasket |
Gasket with an inner ring | |
Tongue and groove flange(T & F) | Basic form gasket |
Gasket with an inner ring | |
Flat and groove flange(F & G) | Basic form gasket |
Gasket with an inner ring |
Tolerances of thickness
Item | Thickness(mm) | Tolerances(mm) |
Gasket thickness | 4.5, 3.2 | +0.2 |
Ring thickness | 3.0 | ±0.24 |
The table below specifies the production diameter tolerance (Nominal pipe diameter for flanges in accordance with):
| DIN (mm) | ANSI B16.5 | API 605 | Tolerances |
Inner ring I.D. | <=600 | <=24" | >=26" and <=34" | ±0.5 |
>600 and <=800 | >24" and <=34" | >=36" and <=60" | ±0.9 | |
>800 and <=1600 | >34" and <=60" |
| ±1.3 | |
>1600 | >60" |
| ±1.6 | |
Gasket O.D. | <=600 | <=24" | <=24" | ±0.9 |
>600 and <=1600 | >24" and <=60" | >24" and <=60" | ±1.8 | |
1600 | >60" |
| ±2.2 | |
Outer ring O.D |
|
| >=1/2" and <=60" | ±0.9 |
<=600 | <=24" |
| 0-1.0 | |
>600 and <=1000 | >24" and <=34" |
| 0-1.8 | |
>1000 and <=1600 | >34" and <=60" |
| 0-2.2 |
Note:1.We also can produce according to JIS.JPI standards or client request.
1. Packing : our packing is accord to customer’s requirment .
2. Shipping : by sea , by air are all ok .
3. Most packing in pallet or wooden case ..
1. Q: Are you a factory or trading company?
A: We have factory in Hebei with export license. We have the most convenient transportation onditions.
2. Q: Where is your factory located? How can I vist there?
A: Our factory is located in Hengshui city, Hebei province, about 2.5 hours train trip from Beijing. All our clients, from home or abroad, are warmly welcome to visit us!
3. Q: Can you do OEM?
A: Yes, we can do OEM products.
4. Q: How does your factory do regarding quality control?
A: "Quality is priority." TENSION Rubber people always attach great importance to quality controlling from the very beginning to the end:
1) All raw material we used are environmental-friendly;
2) Skillful workers care every details in handling the producing and packing process;
3) Quality control department specially responsible for quality checking in each process.
