Name: Low price API umbrella type low and medium pressure check valve
Brand: DUNHUI
Availability: InStock

Product Details

The best quality and faith bring us the good market, such as USA, CANADA, BRAZIL, AUSTRALIA, UK, GERMANY, ITALY, SPAIN, TURKEY, ALGERIA, DUBAI, RUSSIA, UKRAINE, SINGAPORE, MALAYSIA etc. “Made in DUNHUI” in many Countries.

“DUNHUI” is your correct choice. Welcome to visit

1. Low price API umbrella type low and medium pressure check valve

2. Main performance indicators

(Lb)Nominal pressure		150	300	600	900
Shell test	Mpa	3.1	7.8	15.3	23.1
Shell test	Lbf/in²	450	1125	2225	3350
Water seal test	Mpa	2.2	5.6	11.2	16.8
Water seal test	Lbf/in²	315	815	1630	2440
Air seal test	Mpa	0.5~0.7
Air seal test	Lbf/in²	60~100

3. Product drawings

4. Main Dimensions

NPS	DN	Class 150Lb						WT(kg)
in	mm	L	D	D1	D2	b	H	WT(kg)
2"	50	203	157	120.7	92	19.5	161	17
3"	80	241	190.5	152.4	127	24	190	33
4"	100	292	229	190.5	157.2	24	220	44
6"	150	356	279	241.5	216	25.5	257	78
8"	200	496	343	298.5	270	29	292	137
10"	250	622	406	362	324	30.5	350	207
12"	300	698	483	432	381	32	398	279
14"	350	787	533	476.8	413	35	445	387
16"	400	864	597	539.8	470	37	490	446
18"	450	978	635	577.8	533	40	520	621
20"	500	978	698	635	584	43	546	770
24"	600	1295	813	749.3	692	48	880	970

5. Inspection Process

6. Valve total picture

7. Technical Standard:

Design: EN593
Face to face: EN558-1

Flange drilling: EN1092
Upper flange connection: ISO 5211

8. Personnel station:

Have professional salesmen, and 6 Engineers, More than 30 inspectors.

9. Quality and Safety:

We have a very strict and complete quality control system, which promises that goods we produced are always of the best quality, the enough inspectors to ensure that each product can meet the quality requirements of customers. We do the final inspection in own factory with ISO 9001:2008.

10.Location:

DUNHUI has a convenient location at the city’s exporting business zone, Dongli District. We are only 19 km to Tianjin International Airport, and very close to major highways,TIANJIN port. We look forward to work with your business!