SAFETY BLOCK BALL VALVE
True Union Type (1/2"-3") with Mounting Pads

Design Advantages

• Safely blocks in both upstream and downstream direction for simple easy, safe system maintenance.
• Double union design permits quick, easy piping system installation, removal, maintenance.
• Stem has internal land above ball that is pressure seated to the body protecting the stem and the stem seal from contaminants in the fluid media.
• Long life self lubricated TFE seats are externally adjustable, fully replaceable.
• True full port design has immeasurable pressure drop.
• Valve body can be rotated 360° for actuation clearance in system.
• Handle indicates valve open/close position.
• Safety design blow-out proof stem.
• Available in socket, threaded, or flanged (ANSI B16.5 class 150) end configurations.
• PVC safety block ball valves ( 1/2" thru 2" sizes) are provided with socket and threaded end connectors without additional cost inventory requirements.
• All valves are hydrostatically tested.
• Pneumatic (air to air, air to spring) and electric actuation available.
• All TVI safety block ball valves are backed by our two (2) year guarantee.
• Available locking handles, stem extensions, 2" square nut operation
• Brass inserts provided for installation of mounting pad for actuation packages.

Materials Of Construction

NOTE:Drawings with dimensions of the bracket and coupling are available by contacting TVI.

Item	Parts	Pcs	Materials
1	Stem	1	PVC,PP,CPVC,PVDF
2	Ball	1	PVC,PP,CPVC,PVDF
3	Body	1	PVC,PP,CPVC,PVDF
4	Seat Carrier	1	PVC,PP,CPVC,PVDF
5	Union Nut	2	PVC,PP,CPVC,PVDF
6	Handle	1	ABS
7	End Connector	2	PVC,PP,CPVC,PVDF
8	Seat	2	TEFLON®
9	Stem O-Ring	1	EPDM,VITON®
10	Seat Carrier O-Ring	1	EPDM,VITON®
11	Body O-Ring	1	EPDM,VITON®
12	Solid End O-Ring	1	EPDM,VITON®
13	Mounting Pad	2	with brass inserts
14	Flange	2	PVC,PP,CPVC,PVDF

VITON® is a trademark of DuPont Performance Elastomers
TEFLON® is a trademark of DuPont Performance Elastomers

Ansi Dimensions

Size Inch	D1	D2	D3	d		e	n	P	L			A	T	H	B	Working Press (PSI)
				Socket	Thread				Socket	Thread	Flange
1/2"	.591	2.375	3.500	0.840	NPT1/2"	0.625	4	0.875	4.420	4.420	6.015	3.240	.590	2.028	2.114	150
3/4"	.799	2.750	3.875	1.050	NPT3/4"	0.625	4	1.000	4.843	4.843	6.673	3.976	.590	2.638	2.500	150
1"	1.024	3.125	4.250	1.315	NPT1"	0.625	4	1.125	5.615	5.615	7.765	4.390	.630	2.811	2.874	150
1 1/4"	1.20	3.500	4.625	1.660	NPT1 1/4"	0.625	4	1.250	7.160	7.160	9.275	4.780	.630	3.340	3.850	150
1 1/2"	1.50	3.875	5.000	1.900	NPT1 1/2"	0.625	4	1.375	7.160	7.160	9.275	4.780	.630	3.340	3.850	150
2"	1.89	4.750	6.000	2.375	NPT2"	0.750	4	1.500	7.950	7.950	8.100	5.880	.787	3.850	4.733	150
2 1/2"	2.64	5.500	7.000	2.889	NPT 2 1/2"	0.750	4	1.750	8.860	8.860	11.540	7.480	.787	5.51	5.91	150
3"	3.15	6.000	7.500	3.516	NPT3"	0.750	4	1.875	10.830	10.830	14.920	9.050	.866	6.54	7.20	150

Testing performed on PVC/PP/EPDM valves at 73°F water temperature, non-shock.

Safety Block - True Union Ball Valves

Design Specifications

Thermoplastic Ball Valves 1/2"-3" are designed to safely block full system pressure in either direction to allow on-line system maintenance. Valve stem is of the blow-out proof design. Valve has full port for lowest possible pressure loss. Seats shall be easily adjustable and replaceable. Stem has an internal pressure sealed land to protect stem and stem seal from contaminants. Four hole mounting pad is standard on top and bottom. Every valve is fully pressure and cycle tested before leaving the factory. Brass inserts are provided on both top and bottom of valve body for actuation and or panel installation. Materials of construction shall be: (select as required for service)

Body/Ball/Stem/End Nuts and Connectors

PVC, CPVC, ASTM D-1784
PP, ASTM D-4101
PVDF, ASTM D-3222

Seat

PTFE (Polytetrafluoroethylene), Teflon® ( DuPont Performance Elastomers)

Seals

EPDM, Ethylene Propylene Diene Monomer
Fluorocarbon. Viton® (DuPont Performance Elastomers)
Fluorel (3M Corp.)

T Handle

ABS, ASTM D-1788

End connectors shall conform to the following standards:

Socket

ASTM - D-2467 (PVC, SCH-80)
ASTM - F-439 (CPVC, SCH-80)

Threaded

ASTM - D-2464 (PVC, SCH-80)
ASTM - F-437 (CPVC, SCH-80)

Flanged

ANSI - B16.5 Class 150

Both socket and threaded end connectors shall be supplied on all 1/2" - 2" PVC and CPVC valves. On 2-1/2" - 4" socket end connectors will be supplied unless otherwise specified.

Valves shall be backed by a full two (2) year guarantee.

Not recommended for compressed air or gas service.

For more information about our products please go to our Information Request page

Thermoplastic Valves Inc. 53 South Seventh Street Emmaus, PA 18049
610-967-6388 FAX: 610-967-6448 • email: tvi2@fast.net