Hand Manual Butterfly Valve PN10 Three Way Cast Iron Lug Type Manual Butterfly Valves

Hand Manual Three Way Cast Iron Lug Type Manual Butterfly Valve

 

Three Way Butterfly Valve Features:

 

Professional design	When initiating the rotary opening movement the disc is off-seated after only a few degree of opening movement and there is very little wear and tear between seat ring and disc.
Combine fastness	Stainless steel seat ring is rolled into the valve body by applying special rolling technology when DN<1200. Ultrasonic spray applies seal of valve body when DN>1400.
Adjust tightness	Rubber sealing ring and disc can adjust tightness or softness of sealing with clamping ring, it insures best performance of adjusting the compression of sealing.
Sealing reliable	Body and disc made of ductile iron which promote the impact resistance and pressure-bearing capacity, sealing ring made of rubber and valve seat’s sealing surface is conical shaped, make the sealing capacity more reliable.
Excellent corrosion protection	Inside electrostatic epoxy resin power coating or vitreous enamel(upon request), outside electrostatic epoxy resin power coating.
Reliable health nature	Epoxy resin power is up to the health standard.
Mail part & material	Body, Disc: GGG50 with internal and external epoxy resin coating
	Stems: 1Cr17Ni12Mo2Ti, Stainless steel min.13%Cr
	Bushing :Bronze CuAI10Fe3
	Seal ring, O-ring: NBR, EPDM or FPM

 

Three Way Butterfly Valve introduction:

 

1) Fast Material Supply. Have own copper bar Factory of Group.

2) Every valve put through a six-step QC process before delivery.

Material Control, Machining Quality Control, In-coming Material Inspection, Assembly Line Quality Control, Leakage Testing, Final Inspection Before Delivery.

3) 100% Leakage Test.

4) Strictly and perfect management in production.

5) Guaranteed Quality In Competitive Price.

6) On-time Delivery.

7) Complete R&D facilities and Excellent team.

8) Annual R&D projects reach the number of 100.

9) Have rich experience and strong ability to develop new product

 

(DN250 10inch butterfly valve)

face to face length: 10 inch valve length be 8inch(203mm).

Body Ductile Iron w/Fusion Bonded Epoxy ASTM A536 65-45-12

Disc Ductile Iron w/316SS Edge w/Fusion Bonded Epoxy ASTM A536 65-45-12

Seat NBR Vulcanized on Body (Buna-N)

Shaft Type 316 Stn. Stl ASTM A276 Ty316

Packing V-Ring NBR (Buna-N)

Flanges ANSI B 16.1 Class 125

 

Specifications:

Size: DN50 - 3000
Temperature: -15℃ - 150℃
Pressure: 1.0MPa/1.6MPa

 

Materials

Materials of Body : Ductile Iron (GGG40, GGG50). Cast Iron (GG25), Stainless Steel

Materials of Disc : Stainless Steel. Nickel Plated, Ductile Iron, Ductile Iron Coated Plastic,

Titanium Steel, Copper Alloy etc

Materials of Seat : Ethylene-Propylene-Diene Monomer (EPDM), Polytetrafluoroethylene (PTFE),

Nitrile Rubber (NBR), Chloroprene, Chlorosulfonated Polyethylene (Hypalon),

Silicon, Fluoroelastomer (VITON) , Caoutchouc etc.

Materials of Stem : Stainless Steel. Carbon Steel ,2Cr13

A butterfly valve is a type of flow control device, typically used to regulate a fluid flowing through a section of pipe.
The valve is similar in operation to a ball valve. A flat circular plate is positioned in the center of the pipe.
The plate has a rod through it connected to an actuator on the outside of the valve. Rotating the actuator turns the
plate either parallel or perpendicular to the flow. Unlike a ball valve, the plate is always present within the flow,
therefore a pressure drop is always induced in the flow regardless of valve position.

 

1. BRIEF INTRODUCTION:

The butterfly valve is operated by the disc rotating form 0° to 90°, can be applied to cut off or regulate

the flow of medium.

 

The valve can be actuated by operating lever, handle wheel electric actuator or pneumatic actuator.

 

Widely used for potable water supply, waste water treatment, electric power plant, gas supply,

warm-air system, smelting plant, ship building, textile, petroleum, chemistry, or other light industries.

 

2. Specification

name		Butterfly Valve
Item No		D373H-10K
DN(mm)		DN50~DN3000
pressure(Mpa)		1.0
Test pressure (Mpa)	Seal test	1.1
	Body test	1.5
temperature		≤350℃
medium		Water, sewage, sea water, hot water etc.,

 

3. FEATURES

⊙ EPDM seated, good seal

⊙ Low weight

⊙ Low flow resistance

⊙ Small operation torque

⊙ Easy to install and maintain

⊙ Open-close 90° more smoothly

 

4. APPLICABLE STANDARDS

1. Design according : API 609

2. Test standard according: JIS B2003

3. Connect flange standard according: JIS B2212

4. Face to face standard according: JIS B2002

 

5. Item Name of part Material Spec

NO	Part name	Material
1	Body	SS304
2	Gear box	Assembly
3	Disc	SS304
4	Stem	SS416
5	Seal ring	316+Graphite
6	packing	Graphite

 

6. Operation:

6.1. The two pipe flange should be smooth.

6.2. Put the butterfly valve in the pipe line, fixed the orientation hole first.

 

7. Delivery:

When delivery or store the butterfly valve, should keep in dry and cool environment.

 

8. Note:

8.1. Pipe flange should same as the butterfly valve flange.

8.2. Check the valve before installed, the environment should correspond to the butterfly valve

specification.

8.3. Before open butterfly valve, checking the disc without dirt.

8.4. The disc must be shut off place when installed.

8.5. Adjusting the pipe connect before installed.

8.6. The connect flange should be parallel.

8.7. After installed, the pressure test disc should be open place.

8.8. If the butterfly can not natural open or close, please kindly check it careful, can not strike, tamp or

use extension lever.

8.9. When maintenance or operation, must check the stem, lever, gear box or actuator have correctly

connect. Otherwise the stem will be push by pipe pressure.

 

9. The malfunction and resolving:

malfunction	whys	solution
Seal leak	1, Some rubbish on the seal 2, Seal have been light damage	① Clean the rubbish. ② Replacing the disc
Stem Packing leak	1, packing be damaged 2, packing lapse	① Tighten the gland nut ② Change the packing
flange leak	1, the nut release 2, gasket lapse	1 . Tighten the nut 2. Change the gasket

 

10. Maintenance

Open the worm box cover and add some butter per two months.

Check the seal, packing and flange, if leak, please maintain ASAP.

 

Wafer Rubber Seated Butterfly Valves

DN (mm)	PN (MPa)	Connection dimensions(mm)
		L	D	D1	Zφd
40	1.0/1.6	43	145	110	4-18
50		43	165	125	4-18
65		46	185	145	4-18
80		46	200	160	4-18/8-18
100		52	220	180	8-18
125		56	250	210	8-18
150		56	285	240	8-22
200		60	340	295	8-22/12-22
250		68	395/405	350/355	12-22
300		78	445/460	400/410	12-22
350	1.0	78	505	460	16-22
400		102	565	515	16-26
450		114	615	565	20-26
500		127	670	620	20-26
600		154	780	725	20-30
700		165	895	840	24-30
800		190	1015	950	24-33
900		203	1115	1050	28-33
1000		216	1230	1160	28-39
1200		254	1455	1380	32-39
1200	0.6/0.25	254	1400/1375	1340/1320	32-34/32-30
1400		279	1620/1575	1560/1620	36-34/36-30
1600		318	1820/1785	1760/1730	40-34/40-30
1800		356	2045/1985	1970/1930	44-41/44-30
2000		406	2265/2185	2180/2130	48-48/48-30

 

Product Advantages:

 

1) Small in size and light in weight and maintaince.
It can be mounted whereever needed.

 

2) Simple, compact structure, quick 90 degree on-off operation.

 

3) Disc has two-way bearing, perfect seal, without leakage under
the pressure test.

 

4) Flow curve tending to straight-line. Excellent regulation performance.

 

5) Various kinds of materials, applicable to different medium.