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Ductile Iron D71X-16DN50 Center Butterfly Valve

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Specifications:

Size:DN50-300
Pressure: Medium Pressure
Model:D71X-16
Standard or Nonstandard :Standard
Flange: DIN3202, DIN2501
Face to face: BS5155,Top
Flange: ISO5211
Suitable media:Water, oil, gas
Color:Blue or as customer's requiremen
Temperature: 0-80℃

Materials:

Body : Ductile iron/SS304/SS316
Disc : Ductile iron/SS304/SS316
Stem : stainless steel 420/410
Seat: NBR/EPDM/PTFE

Characteristic:

This product is a rubber-sealed butterfly valve, which is widely used in drainage pipeline

systems in electric power, water conservancy, chemical industry, construction and other

industries as a device to control the opening and closing or adjustment of medium flow.

Has the following characteristics:

1. Small and lightweight, easy to disassemble and repair, and can be installed at any location;2. The structure is simple and compact, and the 90° rotation opens and closes quickly;

3. The operating torque is small, labor-saving and lightweight;

4. The flow characteristics tend to be linear and the adjustment performance is good;

5. The number of opening and closing experiments can reach tens of thousands of times and the service life is long;

6. Achieve complete sealing and zero gas leakage in experiments.

Recommended for you:

Detail / Feature / Application

Simple and compact construction, quick 90 degrees on-off operation. Mininmized operating torque, energy saving.
Bubbles-tight sealing with no leakage under the pressure test.
The connection of driven part conforms to ISO5211.
Wide selection of materials, applicable for various medium.
The valve body and disc are accurately machined which results in low operation torque and long service life and reliability.
Can be disassembled, material-specific recycling possible.

Adoptive Standards of Wafer Butterfly Valve manufacturer

Valve Design: API 609,

Face To Face: API 609,DIN3202, BS EN558-1

Pressure Test: API 598

Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16

Top Flange: ISO5211

Features of Wafer Butterfly Valve manufacturer

Single Eccentric Disc-Shaft

Anti-Blow Out Stem

Bi-Directional

Fire safe Design

Low Friction Body Seat

Zero Leakage

Standard Test :

Body Test: 1.5 times the working pressure with water. This test is performed after valve assembly and with disc in half position open, it is called as a body hydro test.

Seat Test: 1.1 times the working pressure with water.

Function / Operation Test: At the time of final inspection, each valve and its actuator (Flow-Control Lever / Gear / Pneumatic Actuator), under goes a complete operating test (Open/Close). This test carried out without pressure and at ambient temperature. It ensures the correct operation of the valve / actuator assembly with accessories such as solenoid valve, limit switches, air filter regulator etc.

Special Test: On request, any other test can be carried out according to special instruction by client.

Wafer Butterfly Valve manufacturer

DN	INCH	L±2	A	B	ISO5211				DIN2501 PN10		DIN2501 PN16		ANSI 150LB		JIS 10K
mm	in	L±2	A	B	TOP FLANGE	∅ E	∅ C1	n1-∅ d1	∅ D	n- ∅ d	∅D	n- ∅ d	∅ D	n- ∅ d	∅ D	n- ∅ d
40	1.5	33	131	65	F05	65	50	4-∅ 8	110	4-∅ 18	110	4-∅ 18	98.5	4-∅ 16	105	4-∅ 19
50	2	43	161	67	F05	65	50	4-∅ 8	125	4-∅ 18	125	4-∅ 18	120.6	4-∅ 19	120	4-∅ 19
65	2.5	46	175	75	F05	65	50	4-∅ 8	145	4-∅ 18	145	4-∅ 18	139.7	4-∅ 19	140	4-∅ 19
80	3	46	181	96	F05	65	50	4-∅ 8	160	8-∅ 18	160	8-∅ 18	152.4	8-∅ 19	150	8-∅ 19
100	4	52	200	114	F07	90	70	4-∅ 10	180	8-∅ 18	180	8-∅ 18	190.5	8-∅ 22.4	175	8-∅ 19
125	5	56	213	129	F07	90	70	4-∅ 10	210	8-∅ 18	210	8-∅ 18	215.9	8-∅ 22.4	210	8-∅ 23
150	6	56	225	144	F07	90	70	4-∅ 10	240	8-∅ 22	240	8-∅ 22	241.3	8-∅ 22.4	240	8-∅ 23
200	8	60	260	167	F10	125	102	4-∅ 12	295	12-∅ 22	295	12-∅ 22	298.4	12-∅ 25.4	290	12-∅ 23
250	10	68	292	207	F10	125	102	4-∅ 12	350	12-∅ 22	355	12-∅ 26	361.9	12-∅ 25.4	355	12-∅ 25
300	12	78	337	237	F10	125	102	4-∅ 12	400	12-∅ 22	410	12-∅ 26	43.8	12-∅ 25.4	400	16-∅ 25
350	14	78	368	262	F10	125	102	4-∅ 12	460	16-∅ 22	470	16-∅ 26	476.2	12-∅ 25.4	445	16-∅ 25
400	16	102	400	297	F14	175	140	4-∅ 18	515	16-∅ 26	525	16-∅ 30	539.5	16-∅ 29	510	16-∅ 27
450	18	114	422	316	F14	175	140	4-∅ 18	565	20-∅ 26	585	20-∅ 30	578	16-∅ 32	565	20-∅ 27
500	20	127	480	355	F14	175	140	4-∅ 18	620	20-∅ 26	650	20-∅ 33	635	20-∅ 32	620	20-∅ 27
600	24	154	561	452	F16	210	165	4-∅ 22	725	20-∅ 30	770	20-∅ 36	749.3	20-∅ 35	730	24-∅ 33

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