What is CPVC Dual Block 3-Way Ball Valve?

In most cases, the CPVC Dual Block 3-Way Ball Valve has two modes of operation: input and output. A three-way ball valve may be recommended in some systems when more than one medium is used. Instead of just two ports (entries), 3-way ball valves have three.

This multiport arrangement can divert fluid from the primary valve input in two different directions (instead of just one) via two independent valve outputs. The primary flow line is served by two separate and alternate inlets, which is another common application of CPVC Dual Block 3-Way Ball Valves.

Flow pattern, handle direction, and the range of 90-degree spin that the handle can make are all used to classify cpvc three-way ball valves. Because of how the valve ball is drilled and the pipe design, gas and liquid flow can be diverted, mixed, blocked, or completely stopped in one direction. By reducing the need for an additional tee and valve, multiport valves save space.

PETRONTHERMOPLAST has developed a TKD DUAL BLOCK® ball valve to introduce a high reference standard in thermosplastic valve design. TKD is a
True Union diverting and mixing ball valve that meets the most stringent needs required in industrial applications.

• Connection system for solvent weld, threaded and flanged joints
• Patented SEAT STOP® ball carrier system that lets you micro-adjust ball
seats and minimise axial force effects
• Easy radial dismounting allowing quick replacement of O-rings and ball
seats without any need for tools
• PN16 True Union valve body made for rigid PVC-U injection moulding

equipped with built-in bores for actuation. ISO 9393 compliant test requi-
sites

• Option of dismounting downstream pipes with the valve in the closed
position
• High surface finish stem with double O-Ring and double connection key
to the ball, equipped with visual ball position indicator for correct handle
installation
• Integrated bracket for valve anchoring
• Possibility of installing pneumatic and/or electric actuators thanks to the
robust anchor tower for easy and quick automation using the Power Quick
module (optional)
• Possibility to have handle with integrated LSQT limit micro switch, even as
a retrofit in existing installations

Technical specifications
Construction	3-way True Union ball valve with locked carrier and union nuts
Size range	DN 10 ÷ 50
Nominal pressure	PN 16 with water at 20 °C
Temperature range	0 °C ÷ 60 °C
Coupling standards	Solvent welding: EN ISO 1452, EN ISO 15493, BS 4346-1, DIN 8063, NF T54-028, ASTM D 2467, JIS K 6743. Pipe coupling capacity according to EN ISO 1452, EN ISO 15493, DIN 8062, NF T54-016, ASTM D 1785, JIS K 6741 Thread: ISO 228-1, DIN 2999, ASTM D 2467 JIS B 0203.
Reference standards	Construction criteria: EN ISO 16135, EN ISO 1452, EN ISO 15493 Test methods and requirements: ISO 9393 Installation criteria: DVS 2204, DVS 2221, UNI 11242 Actuator couplings: ISO 5211
Valve material	PVC-U
Seal material	EPDM, FKM (standard size O-Ring); PTFE (ball seats)
Control options	Manual control; electric actuator; pneumatic actuator

CPVC DUAL BLOCK 3-WAY BALL VALVE INFORMATION

PRESSURE VARIATION ACCORDING TO TEMPERATURE

For water and harmless fluids to which the material is classified as CHEMICALLY RESISTANT. In other cases, a reduction of the nominal PN pressure is required (25 years with safety factor).

PRESSURE DROP GRAPH AND WORK POSITIONS

A – T-port ball valve:
0°- Mixing

A – T-port ball valve:
0°- Mixing

B – T-port ball valve:
90° – Diverting

D – T-port ball valve:
270° – Diverting

E – L-port ball valve:
0°/270° – Diverting

K_V 100 FLOW COEFFICIENT

The K_v 100 flow coefficient is the Q flow rate of litres per minute of water at a temperature of 20°C that will generate Δp= 1 bar pressure drop at a certain valve position. The Kv100 values shown in the table are calculated with the valve completely open.

DN	10	15	20	25	32	40	50
A	25	35	95	140	270	330	620
B	37	55	135	205	390	475	900
C	78	195	380	760	1050	1700	3200
D	40	65	145	245	460	600	1200
E	48	73	150	265	475	620	1220

OPERATING TORQUE AT MAXIMUM WORKING PRESSURE

Dimensions shared by all versions

d	DN	B	B₁	C	C₁
16	10	54	29	67	40
20	15	54	29	67	40
25	20	65	34,5	85	49
32	25	69,5	39	85	49
40	32	82,5	46	108	64
50	40	89	52	108	64
63	50	108	62	134	76

TKDIV

DUAL BLOCK® 3-way ball valve with metric plain socket ends for solvent welding, T
bore.

d	DN	PN	E	H	H₁	L	Z	g	EPDM code	FKM code
16	10	16	54	118	80	14	90	310	TKDIV016E	TKDIV016F
20	15	16	54	118	80	16	86	310	TKDIV020E	TKDIV020F
25	20	16	65	145	100	19	107	550	TKDIV025E	TKDIV025F
32	25	16	73	160	110	22	116	790	TKDIV032E	TKDIV032F
40	32	16	86	188.5	131	26	136.5	1275	TKDIV040E	TKDIV040F
50	40	16	98	219	148	31	157	1660	TKDIV050E	TKDIV050F
63	50	16	122	266.5	179	38	190.5	2800	TKDIV063E	TKDIV063F