Best ball check valve design durable for business for water gate

Statement

Gate valves serve to cut the medium flow in the piping system, widely used in the field of potable water, water supply and drainage, sewage disposal, irrigation, air conditioning, fire protection as well as chemical and energy industry.

Features

◔ Material

Ductile Iron ASTM A536, 65-45-12
Body, bonnet, wedge, handwheel and operating nut are all produced in ductile iron material which provides guarantee for high strength and good corrosion resistance.

◔ Triple O-ring Stem Seals

The lower O-ring isolates the stem thrust collar bearing area from the waterway. The upper two O-rings can easily be replaced in the line while the valve is under pressure in the open position.

◔ Stainless Steel Stem, Brass Thrust Collar and Bronze Wedge Nut

This life-tested MEIDE design has repeatedly proven its superior strength and abrasive resistance.

◔ Fusion Bonded Epoxy Coating

Fusion bonded epoxy coating in accordance with ANSI/AWWA C550 for both interior and exterior surface which provides reliable corrosion resistance.

◔ Long Service Life with Resilient Seat Cycling Test 1,000 times

The Valve has been subjected to 1,000 cycles of operation at a maximum rate of 6 cycles of operation per minute from fully closed to fully open and from fully open to fully closed positions under cycled hydrostatic pressure.

MATERIAL SPECIFICATION

Best ball check valve design durable for business for water gate-1

Z41XB

• Connection Ends: Flange to BS EN 1092-2:1997

• Working Pressure: PN10/PN16 200PSI and 250PSI available upon request

• Temperature Range: 0℃- 80℃

• Coating: Fusion Bonded Epoxy Coating in accordance with ANSI/AWWA C550

Part No.	Part	Standard Speciﬁcation	Options
1	Valve Body	EN-GJS-450-10
2	Resilient Wedge Disc	EN-GJS-450-10+EPDM
3	Stem	SS420	SS304,SS316,Al-bronze
4	Bonnet Gasket	EPDM	NBR
5	Bonnet	EN-GJS-450-10
6	Washer	Brass HPb59-1
7	Yoke	EN-GJS-450-10
8	Nut	Brass HPb59-1
9	Gland	EN-GJS-450-10
10	Stem Nut	Brass HPb59-1
11	Handwheel	EN-GJS-450-10	Pressed Steel
12	Washer	Brass HPb59-1
13	Nut	Carbon Steel Zinc Plated	SS304,SS316
14	Stud	Carbon Steel Zinc Plated	SS304,SS316
15	Flat Washer	Carbon Steel Zinc Plated	SS304,SS316
16	Nut	Carbon Steel Zinc Plated	SS304,SS316
17	O-Ring	NBR	EPDM

Note: For special material request other than standard speciﬁcation, please indicate clearly on the inquiry or order list.

Best ball check valve design durable for business for water gate-2

DN		Dimensions(mm)
Inch	mm	PN	L	H1(Close)	H2(Open)	D	D1	d	C	T	n-φL
2"	50	10/16	178	318	370	165	125	99	19	3	4-Φ19
2.5"	65	10/16	190	343	410	185	145	118	19	3	4-Φ19
3"	80	10/16	203	386	468	200	160	132	19	3	8-Φ19
4"	100	10/16	229	436	538	220	180	156	19	3	8-Φ19
5"	125	10/16	254	516	640	250	210	184	19	3	8-Φ19
6"	150	10/16	267	563	713	285	240	211	19	3	8-Φ23
8"	200	10	292	749	950	340	295	266	20	3	8-Φ23
		16									12-Φ23
10"	250	10	330	904	1158	405	350	319	22	3	12-Φ23
		16					355				12-Φ28
12"	300	10	356	1030	1335	460	400	370	24.5	4	12-Φ23
		16					410				12-Φ28

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