K31 HEAVY DUTY SEAL

K31 is a three piece single acting sealing set which consist of one elastomeric main sealing element with additional sealing lip , one special prole elastomer nitrile rubber that goes into the main sealing component and one thermoplastic back-up ring.

PRODUCT ADVANTAGES
• Able to work in high pressures
• Superior sealing effect in low pressures
• Easy assembly into closed grooves
• Superior sealing effect with the secondary lip
• Secondary sealing lip provides extra protection against the ingress of dirt particles.
•High wear resistance
•Improved sealing gap due to the active back-up ring

APPLICATION
Mining equipment , iron and steel industry , metal injection machines , scrap cutters , marine hydraulics , cranes and mobile hydraulics.

MATERIAL		CODE
NBR	70 SHORE A	NB7001
PU	94 SHORE A	PU9401
POM		PM9901

OPERATING CONDITIONS
MEDIA	Mineral oils(DIN 51524)	HFA ve HFB	HFC
TEMPERATURE	-30°C +100°C	+5°C +50°C	-30°C +40°C
PRESSURE	≤630 Bar	≤630 Bar	≤630 Bar
SPEED	≤0.5 m/sn	≤0.5 m/sn	≤0.5 m/sn
Note: The above data are maximum values and cannot be used at the same time.

SURFACE ROUGHNESS

Rmax

Sliding Surface Ød

≤0.4 μm

≤3.2 μm

Groove Base ØD

≤1.6 μm

≤10 μm

Groove Flanks B

≤3.2 μm

≤16 μm

Note: It is recommended to have 50% to 90% of the working surface material contact area value.

INSTALLATION
Easily assembled into closed grooves according to the minimum diameter values that are given in the below table. Open grooves or special assembly tools should be used for the values that are outside this table. It is very important that the assembly tools must be of soft material and have no sharp edges. Before installation the sealing element must be oiled with system oil.

NOTES
K31 can be used in all type of cylinders safely due to the reason of perfect adaptation to the pressure changes.

MINUMUM DIAMETER VALUES FOR CLOSED TYPE OF GROOVES
(D-d)/2 (mm)	≤7.5	10	12.5	15
dmin (mm)	50	80	100	105

PERMISSIBLE SEALING GAP
Pressure (Bar)	Smax (mm)
150	1.0
250	0.8
400	0.6
630	0.4

Note: The largest sealing gap value occurring on the non-pressurized side of the seal does have a vital importance for the function of the seal and in this respect it is quite important to use the S value lower than the above indicated numbers.


ชื่อสินค้า	ราคา	จำนวน	ID	OD	Thickness	Thickness2	Type	Part NO	Material
K31 HEAVY DUTY SEAL 80X95X9 PU	฿268.00		80	95	9	-	K31 HEAVY DUTY	K31-080/2	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 45X60X11.4 PU	฿178.00		45	60	11.4	-	K31 HEAVY DUTY	K31-045	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 101.6X114.3X14.28 PU	฿334.00		101.6	114.3	14.28	-	K31 HEAVY DUTY	K31-101	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 90X105X11.4 PU	฿270.00		90	105	11.4	-	K31 HEAVY DUTY	K31-090	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 70X80X12 PU	฿251.00		70	80	12	-	K31 HEAVY DUTY	K31-070/3	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 35X50X9.5 PU	฿167.00		35	50	9.5	-	K31 HEAVY DUTY	K31-035	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 85X100X10 PU	฿277.00		85	100	10	-	K31 HEAVY DUTY	K31-085	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 50X65X11.4 PU	฿187.00	สินค้าหมด	50	65	11.4	-	K31 HEAVY DUTY	K31-050	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 110X130X12 PU	฿361.00		110	130	12	-	K31 HEAVY DUTY	K31-110	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 130X150X14.5 PU	฿425.00		150	130	14.5	-	K31 HEAVY DUTY	K31-130	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 70X85X9 PU	฿225.00		70	85	9	-	K31 HEAVY DUTY	K31-070/2	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 40X50X7.3 PU	฿165.00		40	50	7.3	-	K31 HEAVY DUTY	K31-040/1	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 88.9X101.6X9.525 PU	฿266.00		88.9	101.6	9.52	-	K31 HEAVY DUTY	K31-088	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 60X75X11.4 PU	฿222.00		60	75	11.4	-	K31 HEAVY DUTY	K31-060	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 114.3X127X14.287 PU	฿335.00		114.3	127	14.287	-	K31 HEAVY DUTY	K31-114	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 75X90X9 PU	฿251.00		75	90	9	-	K31 HEAVY DUTY	K31-075/1	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 40X55X9.5 PU	฿173.00	สินค้าหมด	40	55	9.5	-	K31 HEAVY DUTY	K31-040	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 95X110X10 PU	฿277.00		95	110	10	-	K31 HEAVY DUTY	K31-095	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 65X80X9 PU	฿226.00		65	80	9	-	K31 HEAVY DUTY	K31-065/1	NBR,PU,POM-C
K31 HEAVY DUTY SEAL 125X145X14.5 PU	฿421.00		125	145	14.5	-	K31 HEAVY DUTY	K31-125	NBR,PU,POM-C

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Account

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