Name: Swing Check Valve H44W/H44Y PN1.6–4.0 Cast Steel Flanged Automatic - VALVEHU, Leading Valve Manufacturer and Supplier in China
SKU: HU12

Description

Contents hide

1 Buy Industrial H44W Swing Check Valve PN1.6/2.5/4.0 Flanged Stainless Steel

1.1 Technical Specifications

1.2 Main Connection Dimensions (Unit: mm)

1.3 FAQ

Buy Industrial H44W Swing Check Valve PN1.6/2.5/4.0 Flanged Stainless Steel

The Swing Check Valve H44W/H44Y PN1.6–4.0 Cast Steel Flanged Automatic by VALVEHU is a high-performance industrial valve engineered to prevent reverse flow in pipelines. Designed with precision, this valve delivers reliable operation in systems handling water, oil, steam, and non-corrosive fluids. Its swing-type disc allows for minimal pressure drop and ensures dependable backflow protection in both horizontal and vertical pipeline installations.

Built from premium-grade stainless steel or carbon steel, this swing check valve is available in a wide range of pressure ratings including PN1.6, PN2.5, PN4.0, and beyond—extending to PN16.0. Its robust flanged connections provide excellent sealing performance, while its standardized face-to-face dimensions make it easy to integrate into most industrial piping layouts.

The H44W/H44Y series supports nominal diameters from DN50 up to DN500, giving it versatility across medium to large pipeline applications. Notable features include a raised face sealing surface, a precision-machined disc and seat, and a compact body design that offers durability and long-term, maintenance-free service.

This automatic check valve requires no external actuator or control system, operating purely on pressure differentials. It’s an energy-efficient and cost-effective solution, ideal for use in pump discharge lines, chemical systems, power plants, and HVAC applications.

Backed by VALVEHU’s strict quality control and adherence to global standards, this product ensures high reliability and safety under rigorous operating conditions.

If you need an effective solution to prevent reverse flow or are unsure which valve suits your system, contact the experts at VALVEHU China. Whether it’s the Swing Check Valve H44W/H44Y PN1.6–4.0 Cast Steel Flanged Automatic or another type, we’re ready to help you find the right fit.

Technical Specifications

Model: H44W / H44Y Swing Check Valve
Pressure Rating: PN1.6 / PN2.5 / PN4.0 / PN16.0
Body Material: Stainless Steel or Carbon Steel
Connection Type: Flanged Ends (standardized dimensions)
Size Range: DN50 to DN500
Installation: Horizontal or Vertical pipeline orientation
Operation Type: Automatic, pressure-differential driven (no actuator needed)
Medium Compatibility: Water, Oil, Steam, Non-corrosive fluids
Design Features: Raised face sealing, precision-machined disc and seat
Application: Ideal for pump discharge, power plants, HVAC, and chemical systems

Main Connection Dimensions (Unit: mm)

Pressure Rating (PN, MPa)	Nominal Diameter (DN)	L	D	D1	D2	b–f	Z–Ød	D3	H
1.6	50	230	160	125	100	16–2	4–18	185	160
1.6	65	290	180	145	120	18–2	4–18	215	177
1.6	80	310	195	160	135	20–3	8–18	235	187
1.6	100	350	215	180	155	22–3	8–18	260	207
1.6	125	400	245	210	185	22–3	8–18	285	227
1.6	150	480	280	240	210	24–3	8–23	330	260
1.6	200	550	335	295	265	26–3	12–23	385	293
1.6	250	650	405	355	320	30–3	12–25	455	330
1.6	300	750	460	410	375	30–4	12–25	515	382
1.6	350	850	520	470	435	34–4	16–25	545	430
1.6	400	950	581	525	485	36–4	16–30	600	480
1.6	500	1150	715	650	608	44–4	20–34	730	560
2.5	50	230	160	125	100	16–2	4–18	185	177
2.5	65	290	180	145	120	20–2	8–18	215	192
2.5	80	310	195	160	135	22–2	8–18	235	192
2.5	100	350	230	190	160	24–3	8–23	260	217
2.5	125	400	245	220	188	28–3	8–25	285	230
2.5	150	480	300	250	218	30–3	8–25	330	270
2.5	200	550	360	310	278	34–3	12–25	385	310
2.5	250	650	425	370	332	36–3	12–30	430	410
2.5	300	750	485	430	390	40–4	16–30	490	450
2.5	350	850	555	490	448	44–4	16–34	545	460
2.5	400	950	620	550	505	48–4	16–34	600	560
2.5	500	1150	730	660	610	52–4	20–41	730	618

Main Connection Dimensions (Unit: mm)

PN (MPa)	DN	L	D	D1	D2	D6	b–f	f2	Z–Ød	D3	H
4.0	50	230	165	125	100	88	20–3	4.5	4–18	185	177
4.0	65	290	185	145	120	110	22–3	4.5	4–18	210	192
4.0	80	310	200	160	135	121	24–3	4.5	8–23	235	192
4.0	100	350	235	190	160	121	24–3	4.5	8–23	260	217
4.0	125	400	270	220	188	176	28–3	4.5	8–25	295	259
4.0	150	480	300	250	218	204	30–3	4.5	8–25	330	270
4.0	200	550	375	320	268	264	38–3	4.5	12–34	445	340
4.0	250	650	450	385	320	364	46–4	4.5	12–34	445	403
4.0	300	750	515	450	410	422	52–4	5	16–41	560	460
4.0	350	850	580	510	465	474	58–4	5	16–41	625	490
4.0	400	950	655	580	525	576	64–4	5	16–41	730	518
4.0	500	1150	755	670	612	576	64–4	5	20–41	730	618
6.4	50	230	185	140	105	88	22–3	4	4–23	210	192
6.4	65	290	200	160	120	110	24–3	4	8–23	235	207
6.4	80	380	215	170	140	121	26–3	4	8–23	260	235
6.4	100	450	245	200	168	150	30–3	4.5	8–30	295	265
6.4	125	500	280	240	202	176	34–3	4.5	8–30	330	297
6.4	150	550	335	285	240	210	36–3	4.5	12–34	425	360
6.4	200	650	415	345	300	260	44–3	4.5	12–34	420	357
6.4	250	775	470	400	352	313	48–3	4.5	12–41	480	405
6.4	300	900	535	460	412	364	54–4	4.5	16–41	560	465
6.4	350	1025	600	525	475	422	60–4	5	16–41	615	514
6.4	400	1150	675	585	535	474	65–4	5	16–65	675	568
6.4	500	1400	800	705	640	576	70–4	5	20–54	735	620
10.0	50	230	195	145	112	88	28–3	4	4–25	210	192
10.0	65	340	215	165	132	108	32–3	4	8–25	235	207
10.0	80	380	230	180	148	121	34–3	4	8–25	260	235
10.0	100	430	260	210	172	150	38–3	4.5	8–30	295	265
10.0	125	500	315	250	210	175	42–3	4.5	8–34	335	313
10.0	150	580	355	290	250	204	46–3	4.5	12–34	425	360
10.0	200	750	435	360	312	260	54–3	4.5	12–41	450	420
10.0	250	775	505	430	382	313	60–3	4.5	12–41	535	480
10.0	300	900	585	540	442	364	70–4	4.5	16–48	—	520
16.0	50	230	215	165	120	108	28–3	4	8–25	—	251
16.0	65	340	245	190	152	110	44–3	4	8–30	—	282
16.0	80	430	280	205	168	121	46–3	4.5	8–30	—	320
16.0	100	430	300	240	200	150	48–3	4.5	8–34	—	356
16.0	150	500	390	355	285	238	66–3	4.5	12–41	—	393
16.0	200	650	490	400	345	260	78–3	4.5	12–48	—	470
16.0	250	750	580	485	425	313	88–3	4.5	12–54	—	514
16.0	300	900	665	570	510	364	100–4	4.5	16–54	—	570

FAQ

What is the main purpose of a swing check valve like the H44W?
To prevent reverse flow in a pipeline using a swinging disc that closes automatically when flow stops.

Can the H44W swing check valve be installed vertically?
Yes, it supports both horizontal and vertical flow installations depending on system design.

What materials are available for the H44W valve body?
It is available in stainless steel for corrosion resistance and carbon steel for general industrial use.

Is this valve suitable for high-pressure systems?
Yes, with pressure classes up to PN16.0, it is suitable for a wide range of medium- to high-pressure applications.

Do I need an actuator to operate this check valve?
No, this is a non-actuated valve that operates automatically based on pressure differential in the pipeline.