美标蝶式旋启式止回阀-温州市永嘉县远东高中压阀门有限公司手机版

详细介绍

⊙标准阀座密封
·设计制造：铸钢止回阀按照BS 1868、ASME B16.34、API 6D；
    锻钢止回阀按照API 602
·验收和检验：API 598, API 600 or API 6D
·法兰连接尺寸：ASME B16.5（ for NPS≤24），
    ASME B16.47 series B、API 605
    ASME B16.47 A系列、MSS SP-44 （for NPS＞24）
·对焊端：ASME B16.25
·承插焊端：ASME B16.11
·结构长度：ASME B16.10
·温压等级：ASME B16.34
·壁厚标准：API 600 、 BS 1868
⊙止回阀结构特点
·栓接阀盖
·旋启式和升降式阀瓣
·金属阀座密封面
⊙阀体和阀盖连接形式
采用栓接阀盖；Class6～Class2500也可采用自压密封式阀盖。
⊙阀盖垫片形式
采用不锈钢石墨缠绕垫片或金属环垫，自密封的采用自密封垫。

⊙阀座设计
碳钢止回阀阀座通常采用锻钢材料，阀座密封面可根据客户要求喷焊硬质合金，NPS≤10"的止回阀采用分离式螺纹旋入式阀座，如果用户需要焊阀座结构也可提供；NPS≥12"止回阀采用焊阀座结构；不锈钢止回阀的阀座一般采用整体式或者在本体上焊硬质合金后直接加工阀座。如果用户有需求，不锈钢闸止回阀座也可采用分离式螺纹旋入式和焊接阀座结构。

⊙产品简介Product Introduction

对夹式蝶式止回阀是一种节能产品。引进*进技术，参照标准制造的阀门，产品具有优良的性能，高的安全性和可靠性，流体阻力小。应用于石油，食品，医药，纺织，造纸，给排水，冶金，能源等工业领域管道上作为截断阀门。

The wafer flange clamped butterfly check valve is a energy-save product. It is manufactured based the foreign advanced technology and in accordance with relative international standards. This product is featured by excellent retaining performance, high safety and reliability and low flow resistance. It is suitable for systems in the industries of petrochemical food processing, medicine, textile, paper-making, water supply, drainage, metallurgy, energy and light industry, etc. used as a check valve in one way.

⊙结构特点Feature:

1. 体积小，重量轻，结构紧凑，维修方便。

2. 扭力弹簧使两个阀瓣连接在一起，阀门开关迅速，自动。

3. 防止介质倒流，防止水锤。

4. 结构短，便于安装和维护。

5. 在垂直或水平管道上均可简便安装。

6. 密封性能好。

7. 操作安全可靠。

8. 法兰连接尺寸按照GB4216-84, GB4216.5—84。

9. 结构长度按照GB/T 12221-89，ISO5752-82。

1. Small in size, light in weight, compact in structure, easy in maintenance.

2. Two torsion springs are used excerting on each of the pair valve plates, which close the plates quickly and automatically.

3. The quick-close action prevents the medium from flowing back and eliminates water-hammer effect.

4. This valve is short in length, so that it is rigid and easy to mount.

5. It is easy to install on pipeline which is laid horizontally or vertically.

6. This valve is tightly sealed without leakage under the pressure water test.

7. Safe and reliable in operation, high interference-resistance.

8. The Connecting dimensions of flange according to the standard of GB4216-84, GB4216.5—84.

9. The face to face dimension is in accordance with ISO5752-82. The stem of the valve should be perpendicular to the horizontal level when the valve is mounted on horizontal pipeline. For vertical installation the direction of flow should be downward.

蝶式旋启式止回阀

Butterfly Swing Check Valve

Class 150-300

⊙零部件材料Parts & Material List

零部件名称Parts Name	WCB	A352 LCB	A217 WC6	A217 WC9	A217 C5	A217 C12	A351 CF8	A351 CF8M
阀体Body	A216 WCB	A352 LCB	A217 WC6	A217 WC9	A217 C5	A217 C12	A351 CF8	A351 CF8M
阀瓣Disc	A351 CF8	A351 CF8	A217 WC6	A217 WC9	A217 C5	A217 C12	A182 F304	A182 F316
阀杆Stem	A182 F304	A182 F304	A182 F304	A182 F304	A182 F304	A182 F304	A182 F304	A182 F316
弹簧Spring	不锈钢Stainless Steel
橡胶垫片Rubber Gasket	EPDM-46~+121 Neoprene-50~+150 NBR-35~+113 Fluorubber -23~+150

⊙外形尺寸及重量Dimension&Weight

口径Size		D	D₁	D₂	L	R	t	重量 Weight （Kg）
mm	inch	D	D₁	D₂	L	R	t	重量 Weight （Kg）
50	2	107	65	43.3	43	28.8	19	1.5
65	2.5	127	80	60.2	46	36.1	20	2.4
80	3	142	94	66.4	64	43.4	28	3.6
100	4	162	117	90.8	64	52.8	27	5.7
125	5	192	145	116.9	70	65.7	30	7.3
150	6	213	170	144.6	76	78.6	31	9.0
200	8	273	224	198.2	89	104.4	33	17
250	10	323	265	233.7	114	127	50	26
300	12	378	310	283.9	114	148.3	43	42
350	14	438	360	332.9	127	172.4	46	55
400	16	439	410	381.0	140	197.4	52	75
450	18	555	450	419.9	152	217.8	58	101 107
500	20	594	505	467.8	152	241	58	111
600	24	690	624	572.6	178	295.4	73	172
700	28	800	720	680	229	354	98	219