Industrial H41s Type Vertical Dual Purpose Check Valve for Water Pump Systems

• Customization: Available
• Function: Ordinary Plunger Valve
• Material: Carbon Steel Stainless Steel
• Model NO.: H41S Type Vertical Dual-purpose Check Valve
• Structure: Cartridge Type
• Pressure-Temperature Frequency Setting: ASME B16.34
• Warranty: 3 Years
• Port Size: 18inch
• Pressure: API 6D
• Customized Support: OEM, ODM, Obm, Software Reengineering
• Trademark: keke
• Origin: Zhejiang Wenzhou
• HS Code: 7304119000
• Production Capacity: 5000
• Package Size: 50.00cm * 50.00cm * 100.00cm
• Package Gross Weight: 100.000kg

Product Description

Product Description

Wear resistance mechanism

When the plunger valve is cosed, the siem inserts the punger into the lower seal ring as if the bole was insered inio the boe, No maler how much force you use to tum thehandwheel, it wl not afect the sealng force between the plunger and the sealng ring. They silmainlain the degree of preightening duning asemby. That is to saly, ther woringsuaces are notsubiec o extemal aciors.inuences, When the plunger vave is opened, he pluner moves only siowly in the sealing, and the conlacl surace of he plunger and theseal ring hardly wears, This feature is not available in ordinary shut-off valves

Don't care about impurities in the fluid

Fine impurities in the fuid do not harm the plunger valve. When the valve is closed, the plunger enters the seal ring and sweeps out the aerosol in the liquid.

Key in the seal ring

The sealing ring is the key component of a plunger valve. It is made of a composite material that is high-strength, high-temperature resistant, corrosion-resistant, wear-resistant, non-toxic, and capable of withstanding long-term high pressure and high temperature without losing elasticity while maintaining stable dimensions. The main components include PTFE (polytetrafluoroethylene), graphite, and highly elastic rubber. The sealing ring is a high-tech product that can still provide excellent sealing performance even after millions of reciprocating movements. The various specifications of sealing rings we typically supply can be continuously used under conditions ranging from -10°C to 300°C without failur

Key points for the new plunger valve to be activated

When a new plunger valve is put into operation, the nuts on the valve cover should be tightened once more, one by one. This operation should be carried out within one hour after the valve reaches its operating temperature, and the valve should be in the closed position during this process.

Leakagetreatment(leakageon the sealing surface and the same treatment method for the upper bonnet)

If leakage occurs after the plunger valve has been in service for a long time, close the valve completely, then tighten the nuts on the valve cover diagonally in a crisscross pattern until the leakage stops. Caution: Never tighten the nuts all the way down in a single attempt.

Method of updating the plunger valve

When the nuts on the valve cover have been fully tightened and leakage still cannot be eliminated, it is necessary to service the plunger valve. In this case, "servicing" does not require removing the leaking plunger valve body from the pipeline; instead, simply replace the old sealing rings with new ones. Only a few simple tools, such as wrenches and screwdrivers, are needed. The specific steps are as follows:

1. Shut off the upstream fluid so that no fluid passes through the valve to be serviced (hereinafter referred to as the valve), and fully open the valve.

2. Remove the nuts and rotate the handwheel in the closing direction to bring out the valve cover.

3. When the valve cover bolt holes are disengaged from the studs, rotate the valve cover around the valve stem to an angle so that the bottom face of the valve cover flange faces the heads of the studs.

4. Rotate the handwheel in the opposite direction, allowing the valve cover to rest on the studs, and continue turning the handwheel until the plunger pulls out the upper sealing ring.

5. Use a screwdriver to remove the upper sealing ring, the metal spacer, and the lower sealing ring.

6. Replace the old sealing rings with new ones, inserting them into the valve body in the order of lower sealing ring → metal spacer → upper sealing ring.

7. After cleaning the inner surface of the sealing rings and the outer surface of the plunger, put the plunger together with the valve cover, stem, etc., into position, and tighten the nuts to press the valve cover face onto the upper sealing ring.

8. Rotate the handwheel in the closing direction to ensure the plunger, along with the valve cover and stem, is in place, and tighten the nuts, pressing the valve cover against the upper sealing ring.

9. Follow the guidelines in the "Key Points for New Plunger Start-Up" section.

At this point, the replacement process of the sealing rings is complete, and the plunger valve is restored to like-new condition - achieving a "new valve" with minimal time and cost.

The Horizontal & Vertical Dual Use Silent Check Valve is independently developed by our factory-the first of its kind in China and the latest generation upgrade. Its sealing principle relies on the precise fit between a stainless steel disc with a spherical seating surface and a non metallic sealing ring (material 8202) that is wear resistant, high temperature resistant, and highly elastic. The combination of rigid (steel) and soft (non metal) elements delivers excellent sealing performance and a long service life. Suitable for installation in both horizontal and vertical pipelines, it is widely used in petroleum, chemical, and water supply & drainage systems to prevent media backflow with an automatic shut off function. This valve represents an ideal, energy saving, leak free check solution.
Performance Specification

Product Number	DN (mm)	Nominal Pressure (MPa)	Applicable Medium	Applicable Temperature (°C)	Body Material	Valve Flap Material	Sealing Material
H41S 16	15-200	16	Water, steam, gas, oil, etc.	≤200	WT200	1Cr18Ni9Ti	8202
H41S 25	25-200	25	Water, steam, gas, oil, etc.	≤300	WCB	1Cr18Ni9Ti	8202
H42S 25	50-200	25	Water, steam, gas, oil, etc.	≤300	WCB	1Cr18Ni9Ti	8202

Main Dimensions And Connection Dimensions

DN (mm)	L (mm)	D (mm)	D (mm)	D (mm)	b (mm)
H41S16
15	130	95	65	45	14
20	150	105	75	55	16
25	160	115	85	65	16
32	180	135	100	78	18
40	200	145	110	85	18
50	230	160	125	100	20
65	290	180	145	120	20
80	310	195	160	135	22
100	350	215	180	155	24
125	400	245	210	185	26
150	480	280	240	210	28
200	600	335	335	295	30
H41S25
25	160	115	85	65	16
32	180	135	100	78	18
40	200	145	110	85	18
50	230	160	125	100	20
65	290	180	145	120	22
80	310	195	160	135	22
100	350	230	190	160	24
125	400	270	220	188	28
150	480	300	250	218	30
200	600	360	310	278	34
H42S25
50	140	160	125	100	20
65	160	180	145	120	22
80	185	195	160	135	22
100	210	230	190	160	24
125	275	270	220	188	28
150	300	300	250	218	30
200	380	360	310	278	34

 

 

 

Q1: How long is the product warranty?
A1: Within 24 months, we will provide you with replacement or repair services, except for quality problems caused by human factors

Q2: Do you have any MOQ limit for valve orders?
A2: No, the MOQ is 1 unit for sample inspection.

Q3: Is there a wholesale discount?
A3: Wholesale discounts are available for large-volume orders. Please contact us for discount information.

Q4: Does it support customized valve needs?
A4: It can be customized. Please confirm the customization details with us.

Q5: Are you a trading company or a manufacturer?
A5: We are a manufacturer and a factory.

Q6: Where is your factory?
A6: Keke Group Co., Ltd., headquartered in Wenzhou, Zhejiang Province