Black NBR Seat Butterfly Valve , Centerline 1 '' - 54 '' Hub Seal Seat

Product Details:

Place of Origin:	Suzhou, China
Brand Name:	SML
Certification:	ISO, WRAS, ACS, FDA, DVGW, NSF, SGS
Model Number:	92801560

Payment & Shipping Terms:

Minimum Order Quantity:	10 pieces
Price:	Negotiation
Packaging Details:	plywood case, size 1157161cm
Delivery Time:	10-15 days
Payment Terms:	T/T, L/C, D/A, D/P, Western Union
Supply Ability:	30,000 PCS / month

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Detailed Product Description

Color:	Black	Size Range:	1''-54''
Material:	BUNA-N	Design:	Tongue-and-groove Seat
Type:	Hub Seal	Suitable Media:	Water, Drinking Water, Potable Water...
High Light:	seal seat , fkm seat

Black NBR valve seat for wafer / lug type butterfly valve 1''-54''

Basic characteristics of nitrile rubber (NBR):

1. Due to the presence of polar nitrile groups, it has high stability to non-polar or weakly polar mineral oils, animal and vegetable oils, liquid fuels and solvents. Oil resistance is its greatest specialty. The higher the propylene content, the better the oil resistance.

2. heat resistance is better than natural rubber, styrene butadiene rubber, neoprene, can be used in the air at 120 ° C for a long time.

3. good air tightness, second only to butyl rubber.

4. Cold resistance and low temperature resistance are poor, and the higher the acrylonitrile content, the worse the cold resistance.

5. because of the non-crystalline rubber, the raw rubber strength is low, must be blended with a reinforcing agent, improve the amount of acrylonitrile combined to help increase strength and wear resistance, but the elasticity is reduced.

6. The dielectric properties of nitrile rubber are inferior and belong to semiconductor rubber.

7. The balance between oil resistance and permanent deformation of the rubber compound, and the balance between oil resistance and electrical properties is important.

8. the scope of application: Mainly used in the production of oil-resistant rubber products, widely used in the manufacture of seals, gaskets, gaskets and other molded products and extruded products, all kinds of rubber rubber rollers, oil-resistant hoses, industrial supplies and adhesives, etc.

Certificates:

German KTW, FDA, W270, British WRAS, US NSF61/372, French ACS.

Related Material Quick Selection Table:

Summary table of rubber properties (Suzhou Meilong)
Rubber Name		Natural rubber	Butadiene styrene rubber	Ethylene propylene rubber	Neoprene	Chlorosulfonated polyethylene	Buna-N rubber	Polyurethane rubber	Fluororubber
Short Name		NR	SBR	EPM EPDM	CR	CSM	NBR	PU	FPM
Pure rubber performance	Proportion	0.91~0.93	0.93~0.94	0.86~0.87	1.15~1.25	1.11~1.18	1.00~1.20	1.00~1.30	1.80~1.82
	Refractive index(ND)	1.59	5339~1.53	〜	1.353~1.560	〜	1.521	〜	〜
	Solubility parameter(SP)	7.9~8.1	8.4~8.6	7.9~8.0	8.85	8.1~9.3	9.64	10	7.3
	Mooney viscosity ML1+4,100℃	90~150	30~60	45~120	45~120	30~55	30~100	25~60	65~180
	Processability	A	A	B	A	B	A	C	C
Vulcanized rubber mechanical properties	Hardness (Shore A)	10~100	30~100	30~90	10~90	50~90	15~100	10~100	50~90
	Tear strength kg/cm2	30~300	50~200	50~200	50~250	70~200	50~250	200~450	70~200
	Elongation %	100~1000	100~800	100~800	100~1000	100~500	100~800	300~800	100~500
	Elasticity	A	B	B	A	B	B	A	C
	Tear strength	A	C	C	B	B	B	A	B
	Compression set	A	B	B	A	B	A	A	B
	Wear resistance	A	A	B	A~B	A	A	A	A
	Flexural crack resistance	A	B	B	B	B	B	A	B
Main application		Tires, rubber shoes, hoses, tapes, miscellaneous items, etc	Same as left	Wire and cable, door and window seals, waterproof coils, etc.	Wire and cable industrial supplies shockproof rubber sealing strip adhesive	Lining, tape, anti-corrosion seals, anti-aging coatings, etc.	Oil seals, cups, 0-rings, oil-resistant hoses, petroleum fittings, etc.	Rubber roller, solid tire, seal, timing tape, etc.	High temperature resistant oil resistant products, oil seals, seals, hoses, etc.