Polyvalve Poly-Chem^® valves are everything you'd expect from the company that invented polyethylene valves.

Millions of Polyvalve Poly-Chem^® valves have been sold since 1976 and are in use throughout the world. Here's why:

• Rugged and reliable Polyvalve Poly-Chem^® valves are the strongest part of a polyethylene piping system.
• Drop-tight shutoff from dual elastomeric seats.
• Fused body shell removes leak paths to the atmosphere.
• Multiple elastomeric stem seals.
• No metal internal parts.
• Corrosion-free due to high-grade polymeric materials.
• Smooth bore gives excellent flow characteristics in both full and reduced port designs.
• Suitable for buried service or above ground service.
• Wide variety of trim for your specific application.
• Flanged end configuration available (butt fusion end configuration is standard).

All Metal System (Welded or Bolted)

• Subject to internal and external corrosion and internal scaling.
• Hazardous leaks at pipe connections.
• High cost of alloy pipe, valves, and fittings.
• Rigid metal piping systems expensive to modify.
• Not flexible or adaptable.

Polyethylene Pipe-to-Metal Valve Systems

• Subject to the inherent weakness of combining incompatible materials.
• Hazardous leaks may occur where the polyethylene and metal meet.
• High cost of alloy valves and adapters.

All-Polyethylene Systems

• Intrinsically safe.
• Pipe is fused to the valves so there are no leak points.
• No chance of internal or external corrosion.
• Lightweight and flexible.
• Can rest on ground.

Poly-Chem^® Valve Availability

Body Resin
Resin Supplier	Material Description	Color	ASTM Material Designation	Material Density
Dow	DGDA 2490	Black	PE 4710/3408	High

Available with flanged ends. Contact the factory for dimensions and pricing.

Maximum Allowable Service Pressures Poly-Chem® Valves for Chemical Services PE 4710/3408 Material
Temperature	SDR 9	SDR 11	SDR 13.5	SDR 15.5	SDR 17
	psig	psig	psig	psig	psig
	bar	bar	bar	bar	bar
Acids, bases, dry gas gathering, drain water, and salt water
74°F	200	160	128	110	100
23°C	13.8	11	8.8	7.6	6.9
140°F	100	80	64	55	50
60°C	6.9	5.5	4.4	3.8	3.4
Gaseous Hydrocarbons
74°F	128	102	82	71	64
23°C	8.8	7.1	5.3	4.9	4.4
140°F	64	51	41	35	32
60°C	4.4	3.5	2.8	2.4	2.2
Liquid Hydrocarbons
74°F	100	80	64	55	50
23°C	6.9	5.5	4.4	3.8	3.4
140°F	50	40	32	28	25

Dimension Data

ANSI
Size	Port	A	B	C	D	E	Weight (lbs.)
1/2	full	10.0	3.4	4.8	2.8	0.50	1.2
3/4	full	10.0	3.4	4.8	2.8	0.75	1.2
1	standard	10.0	3.4	4.8	2.8	0.90	1.2
1-1/4	standard	10.0	3.4	4.8	2.8	0.90	1.2
2	full	14.7	6.4	9.1	4.2	1.82	3.8
3	full	15.0	8.0	11.4	3.5	2.50	8.9
3	standard	12.8	6.4	9.1	3.6	1.95	4.5
4	full	20.0	10.4	15.0	3.1	3.62	19.5
4	standard	15.0	8.0	11.4	3.8	2.50	8.9
6	full	21.0	12.6	18.6	3.9	5.20	38.0
6	standard	20.0	10.4	15.0	5.3	3.62	23.0
8	full	69.8	12.5	19.9	24.0	6.30	98.0
Gear Operated
8	full	69.8	14.8	22.2	24.0	6.30	134.0
12	full	83.8	17.5	27.7	30.0	9.91	305.0

Metric
Note: Polyvalve proudly offers pup lengths to customer specifications.
Size	Port	A	B	C	D	E	Weight (lbs.)
16-20	full	254	86	122	71	12.7	0.5
25	full	254	86	122	71	19.1	0.5
32	standard	254	86	122	71	22.9	0.5
40	standard	254	86	122	71	22.9	0.5
55-63	full	373	164	231	106	46.2	1.7
90	full	381	203	290	89	63.5	4.0
	standard	325	164	231	91	48.0	2.0
100-110	full	508	264	381	77	91.9	8.8
	standard	381	203	290	95	63.5	4.0
150-160 & 180	full	533	320	472	99	132.1	17.2
125-160	standard	508	263	381	133	91.9	10.4
225	full	1773	318	504	610	160.0	44.5
Gear Operated
225	full	1773	376	564	610	160.0	60.8
315	full	2129	443	704	762	251.7	138.3

Materials of Construction and Trim Selection
Poly-Chem® Valves are not suitable for use on aromatic hydrocarbons, ketones, ethers, gasoline. Poly-Chem® Valves are not intended for fuel gas services. Please refer to the PE pipe manufacturers recommendations for additional service compatibility information or send full service details to Polyvalve Valves for our advice. For applications hot listed, please contact Polyvalve for valve recommendations. For 1/2″ through 2″ standard port, consult Polyvalve. For inorganic acids such as hydrochloric, nitric, sulphuric, phosphoric, hydrofluoric and boric please contact Polyvalve for valve recommendations.
Item	Cat A Trim	Cat B Trim	Cat C Trim	Cat D Trim
Body	HDPE	HDPE	HDPE	Special Applications
Ball	Polypropylene	Polypropylene	Polypropylene
Seat Retainers	Polypropylene	Polypropylene	Polypropylene
Seats	EPDM	EPDM	Viton A
Stem	Modified Polyethylene Oxide	Poly-etherimide	Poly-etherimide
Stem Seals	EPDM	EPDM	Viton A
Groundwater Seal	Buna	Buna N	Buna N
Wrench Adapter	Polypropylene	Polypropylene	Polypropylene
Primary Applications 2″ full port through 12″ full port	Strong bases: Hydroxides, caustics Organic acids: Acetic Ammonia and ammonium salt solutions Nonpotable water Air and inert gases	Alcohols and glycols	Metal salt solutions: Bicarbonates, bromides, carbonates, chlorides, cyanides, ferri-cyanides, fluorides, hypochlorites, nitrates, oxides, phosphates, sulphates, or sulphides, of Aluminum, Barium, Calcium, Copper, Iron, Magnesium, Mercury, Nickel, Potassium, Silver, Sodium, Tin, or Zinc. Other: Crude oil, produced water, carbon dioxide, hydrogen sulphide, landfill methane and leachate, hydrogen peroxide.

Ball Valves for Chemical Services
Note: Cv in US gal/min @ 1 psi ΔP. Kv in US gal/min @ 1 psi ΔP
Size		Body Pieces	Port	End Configuration	Cv	Kv	Equiv. Length of Pipe (ft.)	Available SDRs
In.	metric
2	55-63	3	full	BF	175	2528	3.8	9.3, 11
3	90	3	full	BF	390	5624	5.3	9.3, 11, 13.5
3	90	3	standard	BF	240	3461	14.1	9.3, 11, 13.5
4	100-110	3	full	BF	700	10094	5.8	9.3, 11, 13.5
4	100-110	3	standard	BF	400	5768	17.8	9.3, 11, 13.5
6	150-160- 180	3	full	BF	1800	25957	6.1	9.3, 11, 13.5
6	150-160- 180	3	standard	BF	900	12978	24.3	9.3, 11, 13.5
8	225	2	full	BF	3650	52633	5.5	11, 13.5
12	315	3	full	BF	7000	73542	10.6	11, 13.5