Nominal Pipe Size Size Code A B Orifice Diameter 1 H 3.75 4-1/4 0.890 1-1/4 I 3.80 4-5/8 1.135 1-1/2 J 4.38 5 1.385 2 K 5.13 6 2.025 2-1/2 L 7.28 7 2.560 3 M 8.38 7-1/2 3.280 4 N 9.69 9 3.875 6 P 13.75 11 6.380 8 Q 15.10 13-1/2 7.670 10 R 19.25 16 9.650

CF8M Stainless Steel (SS) WCB/WCC Carbon (CS)

SIZE PART NUMBER SS, CS & Alloy 1 HVH 4.3 lb. 1-1/4 HVI 5.3 lb. 1-1/2 HVJ 7.8 lb. 2 HVK 11.5 lb. 2-1/2 HVL 20.7 3 HVM 25.9 4 HVN 44 lb. 6 HVP 88 lb. 8 HVQ 153 lb. 10 HVR 263 lb. Valve weights are approximate.

Full-Bodied Flanged Check Valve

The Check-All Flanged & Drilled (HV) check valve is a one-piece cast full-bodied spring loaded check valve with ANSI/ASME B16.5 Class 150 flanged ends. The HV series spring check valve is used when higher flow rates and lower pressure drops are required. The valve is available in sizes 1 through 10 inches and standard materials of CF8M (cast 316 stainless) and WCB/WCC (cast carbon steel). This check valve is designed for use with mating ANSI class 150 flanges. Other materials are available upon request, please contact [email protected].

Size & Dimension

Nominal Pipe Size	Size Code	A	B	Orifice Diameter
1	H	3.75	4-1/4	0.890
1-1/4	I	3.80	4-5/8	1.135
1-1/2	J	4.38	5	1.385
2	K	5.13	6	2.025
2-1/2	L	7.28	7	2.560
3	M	8.38	7-1/2	3.280
4	N	9.69	9	3.875
6	P	13.75	11	6.380
8	Q	15.10	13-1/2	7.670
10	R	19.25	16	9.650

Available Materials

CF8M Stainless Steel (SS)
WCB/WCC Carbon (CS)

Pressure Temperature Table

Body Material	Availability	Non-Shock Pressure-Temperature Rating
CF8M Stainless Steel (SS)	Standard	ANSI/ASME B16.5 Class 150
WCB/WCC Carbon Steel (CS)

Seat material and spring material selection may limit the recommended service temperature.
See seat ratings, spring ratings, and body material ratings for their respective recommended service temperatures.
Consult the factory for reduced P-T rating above 100 °F. Standard spring material is 316 Stainless Steel.

Flow Data

PRESSURE DROP PSI

Size	Cv
1	14.2
1-1/4	25.6
1-1/2	39.2
2	91.9
2-1/2	140
3	275
4	333
6	878
8	1375
10	2175

FOR WATER AT 72°F

WATER FLOWRATE - GPM

Note: All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs. Consult the factory for more information.

Valve Weights

SIZE	PART NUMBER	SS, CS & Alloy
1	HVH	4.3 lb.
1-1/4	HVI	5.3 lb.
1-1/2	HVJ	7.8 lb.
2	HVK	11.5 lb.
2-1/2	HVL	20.7
3	HVM	25.9
4	HVN	44 lb.
6	HVP	88 lb.
8	HVQ	153 lb.
10	HVR	263 lb.

Valve weights are approximate.

Seat & Cracking Pressure Options

Valve Style	Size Range	Body Materials	Allowable Seat Materials	Standard Cracking Pressures	Standard Spring Material
HV	1" - 1-1/4"	CF8M Stainless Steel (SS)	AFLAS® EPDM "Metal to Metal" PTFE Buna-N Kalrez® Neoprene Viton®	1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI	316 SS
HV	1" - 1-1/4"	WCB/WCC Carbon (CS)	AFLAS® Buna-N Kalrez® "Metal to Metal" Neoprene PTFE Viton®	1/8 PSI 1/2 PSI 1.5 PSI 3.5 PSI	316 SS
HV	1-1/2" - 2-1/2"	CF8M Stainless Steel (SS)	AFLAS® Buna-N EPDM Kalrez® "Metal to Metal" Neoprene PTFE Viton®	1/8 PSI 1/2 PSI 1.5 PSI	316 SS
HV	1-1/2" - 2-1/2"	WCB/WCC Carbon (CS)	AFLAS® Buna-N Kalrez® "Metal to Metal" Neoprene PTFE Viton®	1/8 PSI 1/2 PSI 1.5 PSI	316 SS
HV	3" - 10"	CF8M Stainless Steel (SS)	AFLAS® Buna-N EPDM Kalrez® "Metal to Metal" Neoprene PTFE Viton®	1/2 PSI	316 SS
HV	3" - 10"	WCB/WCC Carbon (CS)	AFLAS® Buna-N EPDM Kalrez® "Metal to Metal" Neoprene PTFE Viton®	1/2 PSI	316 SS