Lowest Price for tank bottom ball valve - MSS SP-71 Cast iron Swing Check Valve – BESTFLOW

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Lowest Price for tank bottom ball valve - MSS SP-71 Cast iron Swing Check Valve – BESTFLOW Detail:

Description

TECHNICAL REQUIREMENT :
● Design and Manufacture Conform to MSS SP-71
● Flange dimensions Conform to ASME B16.1
● Face to Face dimensions Conform to ASME B16.10
● Testing Conform to MSS SP-71

Specification

No.	Part Name	Material
1	BODY	ASTM A126 B
2	SEAT RING	ASTM B62 C83600
3	DISC	ASTM A126 B
4	DISC RING	ASTM B62 C83600
5	HINGE	ASTM A536 65-45-12
6	STEM	ASTM A276 410
7	BONNET	ASTM A126 B
NOTE: Above 6 inch have eyebolt

m to MSS SP-71

Dimensions data(mm)

NPS	2″	2½	3	4	5	6	8	10	12	14	16	18	20	24
Dn	51	63.5	76	102	127	152	203	254	305	356	406	457	508	610
L	203.2	215.9	241.3	292.1	330.2	355.6	495.3	622.3	698.5	787.4	914.4	965	1016	1219
D	152	178	191	229	254	279	343	406	483	533	597	635	699	813
D1	120.7	139.7	152.4	190.5	215.9	241.3	298.5	362	431.8	476.3	539.8	577.9	635	749.3
b	15.8	17.5	19	23.9	23.9	25.4	28.5	30.2	31.8	35	36.6	39.6	42.9	47.8
n-d	4-19	4-19	4-19	8-19	8-22	8-22	8-22	12-25	12-25	12-29	16-29	16-32	20-32	20-35
H	124	129	153	170	196	259	332	383	425	450	512	702	755	856

Installation of Check Valve

The check valve must be installed at the outlet of the pump and in front of the outlet control valve for maintenance. Generally, the first outlet of the pump is soft connection (shock absorber), followed by check valve, and then block valve (such as butterfly valve, gate valve, stop valve, etc.).
1. Install the check valve first and then the gate valve or butterfly valve
Advantages: it can protect the check valve, especially in parallel pumps. When one pump does not start and the other pump starts, the impact force is borne by the gate valve or butterfly valve
Disadvantages: who will protect gate valve or check valve? There was a case that the valve plate of the butterfly valve was broken.
2. Install gate valve or butterfly valve before check valve
Advantages: it can protect butterfly valve or gate valve, and the impact force is borne by the check valve
Disadvantages: who will protect the check valve? The check valve is opened and closed by pressure difference. If the header pressure is high, it will be closed and the pump pressure will be opened. If the flow used is unstable, the check valve will be opened and closed repeatedly, which will affect the service life of the check valve.

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With the "Client-Oriented" business philosophy, a rigorous quality control system, advanced manufacturing equipment and a strong R&D team, we always provide high quality products, excellent services and competitive prices for Lowest Price for tank bottom ball valve - MSS SP-71 Cast iron Swing Check Valve – BESTFLOW , The product will supply to all over the world, such as: Bhutan, Bahamas, Jersey, So We also continuously function. we, focuse on high quality, and are conscious of the importance of environmental protection, most of the merchandise are pollution-free, environmentally friendly solutions, reuse on the solution. We've Updated our catalog, which introduces our organization. n detail and covers the primary products we provide at present, You may also visit our web-site, which involves our most recent product line. We look forward to reactivating our company connection.

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Good quality and fast delivery, it's very nice. Some products have a little bit problem, but the supplier replaced timely, overall, we are satisfied.

By Maud from Salt Lake City - 2018.12.14 15:26

The manufacturer gave us a big discount under the premise of ensuring the quality of products, thank you very much, we will select this company again.

By Carey from Detroit - 2017.01.11 17:15

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