Ductile Iron GGG50 Sliding Multi Ball Check Valve Big Size DN400 DN500

 

Ductile Iron GGG50 Sliding Multi-Ball Check Valve Big Size DN400, DN500

 

Flanged Ball Check Valve uses the rubber covered roller as the disc, when, under the action of the

medium, can roll up and down along with the integral sliding path inside the valve so as to open or

close it. And it features by good tightness, silent close and no production of water hammer.

 

The body is full water-flow path design, big flow, small resistance and the water head loss is smaller

that of the swing type by 50. It is mountable vertically or horizontally and can be used for cold-water,

hot-water, industrial and living sludge pipe networks, especially suitable for the submersible sludge pump.

 

The medium temperature: 0~80℃.

 

Specification

PN: 1.0～1.6MPa

DN: 50～1000mm

Medium: water

temperature: 0～80℃

Flange drill: DIN

 

Material

parts	body	ball	seat
material	Ci,DI, WCB	WCB coating NBR	WCB,SST

 

Dimension

DN	50	65	80	100	125	150	200	250	300	350	400	450	500	600	700	800	900	1000
L	203	216	241	292	330	356	495	622	698	781	914	978	978	1295	1448	1600	1760	1900
H	180	210	225	245	280	320	380	450	470	500
H1							510	570	640	715	815	825	980	1155	1260	1350	1660	1700

 

 

 

 

 

Description:

 

Technical Parameters
Model	PN(MPa)	Casting test pressure(MPa)	Seal test pressure (MPa)	Materials of body, bonnet
HQ44X-10	1	1.5	1.1	iron or steel
HQ414-16	1.6	2.4	1.76
Mail part & material
Body : Cast iron, ductile cast iron ,WCB
Bonnet : Cast iron, ductile cast iron, WCB
Ball : cast steel coated with neoprene
Medium : water and weak corrosive fluid

 

Applications:

Flanged Ball Check Valve uses the rubber covered roller as the disc, when, under the action of the

medium, can roll up and down along with the integral sliding path inside the valve so as to open or

close it.

 

And it features by good tightness, silent close and no production of water hammer.

 

The body is full waterflow path design, big flow, small resistance and the water head loss is smaller

that of the swing type by 50.

 

It is mountable vertically or horizontally and can be used for cold water, hot water, industrial and

living sludge pipe networks, especially suitable for the submersible sludge pump.

 

The medium temperature:0~80℃.

 

Dimensions
DN(mm)	L	D	D1	D2	Z-φd	H
50	180	160	125	100	4-18	185
65	200	180	145	120	4-18	210
80	260	195	160	135	4-18/8-18	245
100	300	215	180	155	8-18	280
125	350	245	210	185	8-18	335
150	400	280	240	210	8-23	400
200	500	335	295	265	8-23/12-23	495
250	600	390/405	350/355	320	12-23/12-25	600
300	700	440/460	400/410	375	12-23/12-25	715
350	800	500/520	460/470	435	16-23/16-25	820

 

Check Valve - Ball type (nonreturn valve) was the first valves at with a unique design. A very simple

but robust design with no critical mechanism involved.

 

All parts like hinge pin disc mechanism used in conventional valve are eliminated, and has put in a

reinforced rubber coated ball to arrest flow media in return condition.

 

This ball, moves totally out of the flow path when the pumping is on to give minimum head losses.

 

The spherical rubber coated ball seals perfectly on the rounded valve seat ensuring a totally leak proof

sealing.

 

This design offers other advantages like non clogging & self cleaning. In this virtually maintenance free

valves, if required, after prolonged usage, the on-line replacement of the ball is just a minute job.

 

* Lower power consumption

* Larger solid handling capacity

* Self cleaning, Non-Clogging

* Perfect Sealing

* Low pressure drop

 

 

Principle:

The heart of this valve is a reinforced rubber ball. The unique design of the valve allows free movement of the ball.

The ball moves to open position when the pump starts & allows free flow of liquid without any interference (See Fig.).

As the pump stops, the ball seats firmly against the metal seat due to its own weight & back pressure of

the liquid (Mouse over fig.). This results in DROPLESS sealing.

 

 

Part List / Materials of Construction

Part	Description	Standard	Special
1.	Body	Cast Iron	St. Steel, Cast Steel
2.	Cover	Cast Iron	St. Steel, Cast Steel
3.	Ball	Nitrile Reinforced	EPDM, Neoprene
4.	Cover Ring	Nitrile Rubber	Butyle, Viton
5.	Ball Seat Ring	L. T. Bronze	St. Steel, Hard Rub.
6.	Fasteners	Carbon Steel	St. Steel