Gate valve rubber polypak seal

The ESA valve rubber seal is a type of Polypak, it combines a rubber o-ring type and a conventional lip type seal to produce a unique sealing device.

Brand:
JST Seals
Item NO.:
ESA
Payment:
T/T
Product Origin:
China
Shipping Port:
Guangzhou
Order(MOQ):
50

Product Detail

Gate valve rubber polypak seal

Polypak is an extruded seal with a symmetrical profile and can be used in rod or piston applications. Its rectangular cross-section ensures the stability of the gland and is an economic choice for use as a separate seal or with a buffer seal.

The ESA valve stem seals a type of Polypak, it combines a rubber o-ring type and a conventional lip type seal to produce a unique sealing device. The O-ring exciter acts as an energizer to maintain seal contact under low pressure or vacuum applications. The inclined lip design of polypak is very suitable for cutting liquid films.

The range of materials available to the user of the ESA seal insures the proper combination for abrasion, extrusion, temperature resistance and fluid compatability which produces high sealability and long life.

Loaded U-cups were primarily designed for dynamic reciprocating applications. The O-rings loader makes this seal excellent for low-pressure rod and piston applications. With loaded U-cups as the system pressure increases, so does the force on the loading lips. Sealing force automatically compensates for the higher pressure, maintaining a positive seal.

Advantages:

1.Normally used for low pressure valve stem
2.Excellent sealing performance
3.High friction
4.High torque
5.Cost-effective
6.High wear resistance
7.High sealability

Working Conditions
Working Pressure	Working Temperature	Working Medium	Material
0~15000 PSI	PU	Hydraulic fluids, crude oil, sour oil/gase, H₂S, salty water	NBR/HNBR/FKM

Application Suggestion:
PFF valve, FC valve, FLS valve, FL valve, etc.

gate valve polypak seal dimensions :

Inch			MM			Inch			MM
d	D	H	d	D	H	d	D	H	d	D	H
0.71	1.26	0.31	18	32	8	1.26	2.05	0.39	32	52	10
0.79	1.38	0.39	20	35	10	1.38	2.17	0.39	35	55	10
0.87	1.38	0.39	22	35	10	1.42	2.05	0.39	36	52	10
0.98	1.50	0.24	25	38	6	1.5	2.24	0.39	38	57	10
0.98	1.77	0.39	25	45	10	1.5	2.25	0.39	38.1	57.1	10
1.00	1.50	0.25	25.4	38.1	6.3	1.5	1.75	0.25	38.1	44.5	6.3
1.02	1.57	0.39	26	40	10	1.57	2.36	0.39	40	60	10
1.10	1.65	0.39	28	42	10	1.77	2.56	0.39	45	65	10
1.10	1.73	0.39	28	44	10	1.81	2.56	0.39	46	65	10
1.10	1.89	0.39	28	48	10	1.97	2.76	0.39	50	70	10
1.18	1.97	0.39	30	50	10	2.17	2.95	0.39	55	75	10
1.22	1.73	0.39	31	44	10	2.36	3.15	0.39	60	80	10
1.25	2.00	0.39	31.7	50.7	10	2.56	3.35	0.39	65	85	10
1.26	1.89	0.39	32	48	10.0	MAX 1000

Hot Tags :

polypak seal distributors valve polypak seal installation polypak seal valve stem seal polypac polypak rod seal manufacturers gate valve polypak seal catalog

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